Public Minutes of the 32nd MMPDS Coordination Meeting
Transcript of Public Minutes of the 32nd MMPDS Coordination Meeting
Public Minutes of the 32nd MMPDS Coordination Meeting Held in:
Scottsdale, Arizona September 10-13, 2018
Compiled by: Prepared for:
Battelle FAA William J. Hughes Technical 505 King Avenue Atlantic City, NJ 08405Columbus, OH 43201-2693
Copyright 2018 Battelle Memorial Institute. All rights reserved. Unauthorized duplication or distribution may violate the Copyright Laws of the United States and of other jurisdictions.
TABLE OF CONTENTS
I. Introduction of Attendees 1II. Chairman's Remarks 1III. Approval of 31st MMPDS Meeting MinutesNew Item Numbers Assigned in 2018 Changes to MMPDS-14Closed Agenda ItemsMinutes Agenda Item Summary Registrants Attendance
1 2 4 5 7
14
32nd MMPDS Coordination Meeting Minutes
32nd MMPDS Coordination Meeting
I. Introduction of Attendees
A list of 32nd Coordination Meeting attendees, indicating the meetings they attended, has been
incorporated into this document.
II. Chairman’s Remarks – Jim Kabbara, FAA
Thanks to all of those who participated in the 32nd MMPDS Coordination Meeting held in Scottsdale, Arizona. I felt back home in my adopted state of Arizona and the only sorrow I had was that I did not have the chance to go down to Tucson to visit my University of Arizona campus. As we have gotten accustomed, Battelle team did another superb job of organizing and managing the week of activities. This meeting was a very memorable meeting in many respects not the least of which was the surprise celebration of Mark Freisthler upcoming retirement from FAA. Mark had his great technical marks on MMPDS success. Mark Freisthler served as submarine navy sailor then he worked with Boeing Seattle before he joined FAA Transport Aircraft office. Mark will hang his engineering hat in March of 2019. I want to personally thank my friend and colleague Mark for his many years of dedicated effort to the MMPDS especially to his leading effort of volume II that deals with Process Intensive Material (PIM) or engineered materials such as Additive Manufacturing (AM).
Mark James of FAA small aircraft office and Sam Cordner of NASA will co-chair the Emerging technology working Group (ETWG). They will continue working on developing the content of Volume II of the MMPDS Handbook. I thank Mark, Sam and all of the MMPDS members who volunteered to support this ETWG important work. This ETWG activity, in my opinion, is a significant breakthrough that keeps the MMPDS a dynamic source of material information.
Again, thank you for attending the 32st MMPDS Coordination Meeting. Your dedication to maintaining MMPDS as the premier source in the world for metallic material properties used in the design of aerospace structures is most appreciated. I look forward to seeing everyone at the 33rd MMPDS Coordination Meeting.
Thank you, Jim Kabbara
III. Approval of the 31st MMPDS Meeting Minutes
The 31st MMPDS Coordination Meeting Minutes were approved,
M-1
18-01 Environmentally Assisted Cracking in Aluminum Alloys (EASA SIB 2018-04)
18-02 Stabilization of AMS QQ-A-225/6 for 2024 Bar and Rods
18-03 Stabilization of AMS QQ-A-367 and AMS-A-22771 for Aluminum Forgings
18-04 Determine Minimum Thickness for Die-forging Bearing Tests
18-05 Data Quantities for Large Gage Ranges
18-06 Revision of Figure 9.3.4.4 Failure Codes for Fasteners
18-07 Review of Inconsistencies in Table 8.2.3.3.2(d) for Spot-Weld Joints
18-08
718 Investment Cast (AMS5383) Addition of Tensile A/B-basis and Elevated
Temperature
18-09 Update Creep Guidance in Chapter 1
18-10 Data Requirements for Forgings
18-11 Stress-Strain Curves for 2050-T852 Aluminum Alloy Die Forging 4.000-6.000 inch
18-12 Guidelines for Smooth Transition of Properties Across Thickness Ranges
18-13 Guidelines for Exclusion of Low Secondary Property Test Values
18-14
Addition of A206.0-T4 and T71 Sand Casting Stress-Strain Curves and Fatigue
Analyses
18-15 Guidelines for Non-Monotonic Stress-Strain Response
18-16 Full-Range Stress-Strain Curves for 2050-T852 Aluminum Alloy Die Forging
18-17 Design Allowable Properties for 7160-T7651 Aluminum Alloy Plate
18-18 Update AMS-QQ-A-250/4 in Table 8.2.2.1.2(a) (MMPDS-13)
18-19 Legacy Confirmation for Ti-6-4 Investment Castings per AMS4992
18-20 Upgrade S-Basis to A- and B-Basis 7075-T76, T7651 Bare and Clad Sheet and Plate
18-21 Upgrade S-basis to A/B-basis for 2219-T852 Aluminum Alloy Hand Forgings
18-22 Legacy Confirmation and Upgrade to A- and B-basis for 7075-T76511 Extrusion
32nd
MMPDS Coordination Meeting
New Item Numbers Assigned in 2018
M-2
32nd
MMPDS Coordination Meeting
New Item Numbers Assigned in 2018
18-23 Upgrade of 7XXX Series Fatigue Curves
18-24
Contemporary Tension and Compression Modulus Data for Ti-6Al-4V Annealed
Sheet
18-25 Proposal for AA/ANSI Alloy Designation System for Aluminum Alloy Powder and Parts
18-26
Introduction to AA7160: A New Family of High Strength, High Toughness, and
Corrosion Resistant Plate by Scott Buchwald
18-27
Introduction to Elektron 21 (EV31A) Billet and Slab for Machine from Solid
Applications
18-28 Using the Logarithm Transformation with MIDAS Analysis of Minimum Properties
18-29 Applicability of Stress-Strain Models
M-3
Final Initial
13-35 MTG MATSSG
Upgrade S-Basis to A- and B-Basis for
718 Bar Nickel-Base Alloys per AMS
5962
60 Day
Approval�
This item was reviewed by MATSSG. They proposed a revision to
the footnote.
15-46 GTG MATSSGCross-Sectional Information Requirement
for Extrusions
Approved w
Changes and
Closed
In Section 9.2.3, add "and product thickness" prior to the new
sentence. Add definition of circle size and other relevant words to
glossary with a reference to AS&D.
16-10 MTG ASGLegacy Alloy 7075-T6 Indirect Properties
Update
Approved w
Changes and
Closed
Clad properties approved. Note to fix final table e/D values in left
column. Note that there is a typo in Table 10 - 0.040 - 0.112 -
should be 0.120. Bare properties approved except for bearing,
with exception of bearing for e/D 2.0( T-L). Open new item for
retest of Bare Bearing when data are received.
16-22 MTG ASGIdentification of Forging Types for Tables
with A- and B-basis
Approved w
Changes and
Closed
Approved with Changes: New item for MLX17 and PH13-8. For
MLX17, confirm details of the source material for data. The
footnote is an improvement though there are concerns about the
forms used to compute the numbers. There were questions about
the 13-8 forms in the data set, too.
16-32 MTG MATSSGMechanical Properties for 7097-T7651
Aluminum Alloy Plate
Approved and
Closed
Approved design properties from the previous meeting plus tables
and text proposed at this meeting. Open a new item to analyze
stress-strain curves and compression modulus data.
16-34 GTG
Review Guideline on Stress-Strain
Submittal for Number of Curves per
Thickness Range
Approved and
Closed
C. Shannon presented this item to require additional stress-strain
curves for analysis.
17-43 MTGR-Curves for 2624-T39 and T351
Aluminum Alloy Plate
Approved w
Changes and
Closed
Round W to 16.0 instead of 15.9 inches. That would have no
impact on the results.
18-04 GTG MATSSGDetermine Minimum Thickness for Die-
forging Bearing Tests
Approved w
Changes and
Closed
Some changes made by MATSSG to remove version of specs.
Open new item for specification version control
18-17a MTGDesign Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
Approved w
Changes and
Closed
Approved pending publication of the specification. Intro section
includes changes from MATSSG.
18-17b MTGDesign Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
60 Day
Approval�
60 Day approval on stress-strain curves since they were included
in a Handout.
18-23 MTG Upgrade of 7XXX Series Fatigue CurvesApproved and
Closed
Curves were redrawn for clarity from the database, with some
including additional information on orientation of data points.
18-29 GTG Applicability of Stress-Strain ModelsApproved and
Closed
Approved to add text in proposal of Item 15-34 to MMPDS-14.
Item 15-34 will be continued to work on initial issue.
Item
No
Responsible GroupTitle Disposition
32nd MMPDS Coordination Meeting
CHANGES TO MMPDS-14
32nd Meeting Minutes
Sorted by Item Number
M-4
Final Initial
12-44 MTGDesign Allowable Properties for Ti-3Al-
2.5V Tubing
Closed w no
ActionHaving received no data in 6 years, the item was closed
12-45 MTG 21-6-9 (Nitronic 40) TubingClosed w no
ActionHaving received no data in 6 years, the item was closed
13-32 MTGBearing Strength Reduction for Edgewise
Orientation from Extruded Bar
Closed w no
Action
Open new item when data are received from various alloys in an
alloy family.
13-35 MTG MATSSG
Upgrade S-Basis to A- and B-Basis for
718 Bar Nickel-Base Alloys per AMS
5962
60 Day
Approval
This item was reviewed by MATSSG. They proposed a revision to
the footnote.
13-43 MTGAddition of ST Bearing Properties for
7085-T7451 Plate
Closed w no
ActionThe material is not available for testing
15-37 GTGGuidelines for Strain-Rate Sensitive
Materials
Closed w no
Action
D. Hall led discussion on this item. It was agreed that this item
could be dropped and that guidance does not need to be added
to Chapter 1.
15-46 GTG MATSSGCross-Sectional Information Requirement
for Extrusions
Approved w
Changes and
Closed
In Section 9.2.3, add "and product thickness" prior to the new
sentence. Add definition of circle size and other relevant words to
glossary with a reference to AS&D.
15-51 GTG
ASG/
MATSSG/
GSG
Periodic Testing of Materials for Derived
Properties
Closed w no
Action
Open a new guideline item to required derived property data
when thickness ranges are expanded.
16-10 MTG ASGLegacy Alloy 7075-T6 Indirect Properties
Update
Approved w
Changes and
Closed
Clad properties approved. Note to fix final table e/D values in left
column. Note that there is a typo in Table 10 - 0.040 - 0.112 -
should be 0.120. Bare properties approved except for bearing,
with exception of bearing for e/D 2.0( T-L). Open new item for
retest of Bare Bearing when data are received.
16-22 MTG ASGIdentification of Forging Types for Tables
with A- and B-basis
Approved w
Changes and
Closed
Approved with Changes: New item for MLX17 and PH13-8. For
MLX17, confirm details of the source material for data. The
footnote is an improvement though there are concerns about the
forms used to compute the numbers. There were questions about
the 13-8 forms in the data set, too.
16-32 MTG MATSSGMechanical Properties for 7097-T7651
Aluminum Alloy Plate
Approved and
Closed
Approved design properties from the previous meeting plus tables
and text proposed at this meeting. Open a new item to analyze
stress-strain curves and compression modulus data.
16-34 GTG
Review Guideline on Stress-Strain
Submittal for Number of Curves per
Thickness Range
Approved and
Closed
C. Shannon presented this item to require additional stress-strain
curves for analysis.
17-39 GTG Stress-Strain Curve Working GroupClosed w no
Action
This group is dissolved. Items will be opened to address in
appropriate groups as they arise.
17-43 MTGR-Curves for 2624-T39 and T351
Aluminum Alloy Plate
Approved w
Changes and
Closed
Round W to 16.0 instead of 15.9 inches. That would have no
impact on the results.
17-57 MTGRe-evaluate Fatigue Analysis for 2024-T4
Multiple Product Forms
Closed w no
Action
Product form is not listed in the source traceable to the specimens,
thus the fatigue curves could not be analyzed by product form.
17-64 GTG ETWGNorthrop Grumman Design Allowables
for Additive Ti 6-4
Closed w no
Action
NG's presentation has been approved for release and will be
included in the minutes
17-69 GTG ASG, MATSSGPairing of Tensile Coupon with Shear and
Bearing Orientations
Closed w no
Action
J. Rubadue presented this item and requested it be closed with no
action.
Item
No
Responsible GroupTitle Disposition
32nd MMPDS Coordination Meeting
CLOSED AGENDA ITEMS
32nd Meeting Minutes
Sorted by Item Number
M-5
Final Initial
Item
No
Responsible GroupTitle Disposition
32nd MMPDS Coordination Meeting
CLOSED AGENDA ITEMS
32nd Meeting Minutes
Sorted by Item Number
18-01 GTG GSG, ASG, MATSSGEnvironmentally Assisted Cracking in
Aluminum Alloys (EASA SIB 2018-04)
Closed w no
ActionThis item was closed with no additional action or discussions.
18-04 GTG MATSSGDetermine Minimum Thickness for Die-
forging Bearing Tests
Approved w
Changes and
Closed
Some changes made by MATSSG to remove version of specs.
Open new item for specification version control
18-12 GTGGuidelines for Smooth Transition of
Properties Across Thickness Ranges
Closed w no
ActionCase-by-case engineering judgement will be used.
18-15 GTGGuidelines for Non-Monotonic Stress-
Strain Response
Closed w no
ActionItem 17-34 will cover these guidelines
18-17a MTGDesign Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
Approved w
Changes and
Closed
Approved pending publication of the specification. Intro section
includes changes from MATSSG.
18-17b MTGDesign Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
60 Day
Approval
60 Day approval on stress-strain curves since they were included
in a Handout.
18-23 MTG Upgrade of 7XXX Series Fatigue CurvesApproved and
Closed
Curves were redrawn for clarity from the database, with some
including additional information on orientation of data points.
18-25 MTG
Proposal for AA/ANSI Alloy Designation
System for Aluminum Alloy Powder and
Parts
Closed w no
Action
A copy of this presentation will be posted with the minutes.
Feedback from MMPDS members was requested. It was
suggested that a variation be added to identify the way the
powder was made. Discussed that it may not show up on the
alloy name, but may be in the Color sheet. Suggested that a
similar proposal be developed for wire.
18-26 MTG
Introduction to AA7160: A New Family of
High Strength, High Toughness, and
Corrosion Resistant Plate by Scott
Buchwald
Closed w no
Action
A copy of this presentation will be posted with the minutes. We
will open new items to analyze data when it is provided to
Battelle.
18-27 MTG
Introduction to Elektron 21 (EV31A) Billet
and Slab for Machine from Solid
Applications
Closed w no
Action
A copy of this presentation will be posted with the minutes. We
will open new items to analyze data when it is provided to
Battelle.
18-29 GTG Applicability of Stress-Strain ModelsApproved and
Closed
Approved to add text in proposal of Item 15-34 to MMPDS-14.
Item 15-34 will be continued to work on initial issue.
M-6
Final Initial
03-14 MTG
Review of Currency of Existing Database
on Legacy Alloys
Continue
Some alloys have been assigned item numbers and will be
analyzed as time allows. Material producers should check the
agenda to see which alloys they should submit data for.
04-21 FTG Fastener Tables of Sunset Review Interest Continue No effort on this item.
08-23 FTG
Sunset Review of Table 8.1.3.2.2(c),
NAS1921C
Continue No effort on this item.
09-13 FTG
Sunset Review of Table 8.1.3.2.3(a),
MS21140
Continue This item placed on hold. More shear data are requested.
10-13 MTG ASG Wrought Steels S-Basis Summary Continue
Textron has some data for 4130 and 4340 alloys that they are
willing to donate. Does anyone else have data for these alloys
that they are willing to supply?
10-14 MTG
Wrought Aluminum Alloys with S-Basis
Minimums
Continue
Some alloys have been assigned item numbers and will be
analyzed as time allows. Material producers should check the
agenda to see which alloys they should submit data for.
10-15 MTG
Mechanical Properties for Aluminum
Alloy Forgings
Continue
2219-T852 Hand Forgings has been assigned Item 18-21 for
analysis with data from 2 suppliers. Data for 6061-T652 Hand
Forging per AMS4248 is requested. This is currently not in
MMPDS.
10-17 MTG
Re-evaluate Legacy Alloy Stress-Strain
Curves in Chapter 3
Continue
No effort expected at this time. Intent is to determine whether the
two-parameter model improves the curves.
10-25 GTG-F FTG
Fastener Installation Parameters for Joint
Tension Allowables
Continue
N. Anderson to circulate a Word version for review prior to
discussions at Spring meeting.
11-05 MTG AMS Coordination Continue
A summary of new specifications and recently balloted
specifications will be included in the minutes.
11-15 MTG
Division of Low Alloy Steel Table
2.3.1.0(g2)
Continue Depending on priority, this will be worked at BMI
11-38 FTG
Sunset Review of Flush Head,
Mechanical Lock Spindle Blind Rivet
Table 8.1.3.2.2(e) NAS 1921 M
Continue No effort on this item. Waiting on Item 04-21.
11-43 FTG
Supporting Data and Basis Identification
for Table 8.1.2(b)
Continue
Data are needed. Requesting that core funding be used for
testing.
12-16 MTG
ASG/
MATSSG
Footnote for Steel When Test Specimen
is Not From Full Thickness
Continue
A small working group was established at the 31st meeting to
discuss this item and related guideline item 15-40.
R. Reinmuller suggested a sentence to say that specimens heat
treated after being excised from the full thickness may lead to
properties different from the full thickness material.
12-17 MTG MATSSG
Footnote for Non-Ferrous Alloys Test
Specimen When Not From Full Thickness
Continue This item is on hold until Item 12-16 is done.
12-44 MTG
Design Allowable Properties for Ti-3Al-
2.5V Tubing
Closed w no
Action
Having received no data in 6 years, the item was closed
12-45 MTG 21-6-9 (Nitronic 40) Tubing
Closed w no
Action
Having received no data in 6 years, the item was closed
12-50 GTG-F FTG
Evaluation of new Regression and
Confidence Models for Lap Joint Tests
Continue Waiting on Item 17-28.
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
M-7
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
12-52 GTG-F FTG Fastener Minimum t/D Requirements Continue
C. Shannon will determine if a copy of the supporting paper
dated 1945 for support of t/d of 0.18 can be released. The
handout from the 31st meeting will be distributed to FTG.
12-89 GTG PSG
Target Materials for Propulsion
Applications
Continue A new ballot will be circulated for prioritization.
12-105 GTG-F FTG
Modification to the Sunset Criteria
Procedures
Continue Open new item to revise Sunset Clause. Place this item on hold.
13-32 MTG
Bearing Strength Reduction for Edgewise
Orientation from Extruded Bar
Closed w no
Action
Open new item when data are received from various alloys in an
alloy family.
13-34 MTG
Addition of AMS 4919 Ti-6-2-4-2 Plate
Properties
Continue
AFRL has one lot of material with fatigue, FCP, and tensile. Please
let Battelle know if you have data to contribute.
13-35 MTG MATSSG
Upgrade S-Basis to A- and B-Basis for
718 Bar Nickel-Base Alloys per AMS
5962
60 Day
Approval
This item was reviewed by MATSSG. They proposed a revision to
the footnote.
13-43 MTG
Addition of ST Bearing Properties for
7085-T7451 Plate
Closed w no
Action
The material is not available for testing
13-50 GTG ASTM Coordination Continue
No major updates on test specifications. It was requested that
F42 updates be tracked as well. Let S. Thompson know if you are
interested in attending ASTM symposium.
14-19 GTG Inclusion of KIsi Fracture Toughness Data Continue
This method would be useful for tougher materials where valid
KIc is difficult to achieve.
14-24 MTG
Identification of Stress-Strain Curves
Which Have Been Evaluated for 2-Shape
Factor for Chapters 4-7
Continue No effort was expended on this item.
14-28 FTG
Sunset Review of Table 8.1.4.2(i),
LGPL2SC-V Pin, 3SLC-C Collar in Clad
7075-T6
Continue No effort was expended on this item.
14-61 GTG PSG Update Creep Guidelines Continue
This item will remain on hold. Created new Item 18-09 to review
Chapter 1 creep section first. Feedback is requested.
14-62 GTG
Evaluate Inclusion of other Fracture
Toughness Data (JIC, KJIC)
Continue D. Wells would like additional time to review.
14-66 MTG
Addition of 15-5PH Sheet S-Basis per
AMS 5862 for H1025 Condition
Continue Battelle needs to request data from producers
14-67 MTG
Addition of 3-6 Inch Range for 7075-
T73X Bar and Rod per AMS 4124
Continue Battelle needs to request data from producers
15-13 MTG
Clarification of Shear Orientation for
Legacy Alloys
Continue
Remove 7075-T73 sheet secondary properties due to insufficient
number of lots for compression, shear, and bearing. Continue
item for additional shear properties.
15-19 GTG-F FTG
Verification of Secondary Modulus
Methods for Fasteners
Continue No effort on this item.
15-34 GTG Stress-Strain Curve Extension Continue
C. Shannon presented this item to clarify that the current models
should only be used for monotonically increasing. Create new
item to include proposed red text in MMPDS-14, but leave this
item open to address the original issue.
15-36 GTG Modification of Indirect Analysis Equation Continue
B. Krile reviewed this item, including a Handout with additional
information. Using Direct regression on small sample size will be
evaluated further.
M-8
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
15-37 GTG
Guidelines for Strain-Rate Sensitive
Materials
Closed w no
Action
D. Hall led discussion on this item. It was agreed that this item
could be dropped and that guidance does not need to be added
to Chapter 1.
15-38 GTG
Reevaluation of Degrees of Freedom
Calculation for Regression with Effect of
Temperature
Continue
This item was discussed as part of reviewing item 18-08, analysis
of IN 718 cast data. Options will be investigated and discussed in
the spring.
15-40 GTG
ASG/MATS
SG
Guidelines for When Specimens Are Not
From Full Thickness
Continue
This item and Item 12-16 are to be discussed by a steel working
group. The ASG would like to add to footnotes, " This practice
may result in variation between design values and actual
properties."
15-42 MTG
Casting Allowables for 15-5PH and 17-
4PH steel
Continue
Insufficient data for A/B-Basis. The material supplier has been
contacted for additional data.
15-46 GTG MATSSG
Cross-Sectional Information
Requirement for Extrusions
Approved w
Changes and
Closed
In Section 9.2.3, add "and product thickness" prior to the new
sentence. Add definition of circle size and other relevant words to
glossary with a reference to AS&D.
15-51 GTG
ASG/
MATSSG/
GSG
Periodic Testing of Materials for Derived
Properties
Closed w no
Action
Open a new guideline item to required derived property data
when thickness ranges are expanded.
16-02 GTG
Updates to Strain Departure Methods for
Stress-Strain Curve Analyses
Continue No effort on this item.
16-10 MTG ASG
Legacy Alloy 7075-T6 Indirect Properties
Update
Approved w
Changes and
Closed
Clad properties approved. Note to fix final table e/D values in left
column. Note that there is a typo in Table 10 - 0.040 - 0.112 -
should be 0.120. Bare properties approved except for bearing,
with exception of bearing for e/D 2.0( T-L). Open new item for
retest of Bare Bearing when data are received.
16-12 FTG
Identifying Basis of Fastener Shear
Strength on Remaining Tables
Continue
Battelle to find the original date and work with B. Gurrola to find
the corresponding NAS1400 specification.
16-13 FTG
Corrections to Table 8.1.3.2.2(c) NAS
1921C
Continue No effort on this item. Waiting on Item 08-23.
16-15 GTG ETWG Emerging Technology Working Group Continue
ETWG met on Wednesday afternoon.
Presentations will be posted.
The Volume II Working Group will shift focus to developing
Chapter 2.
Start draft using 11-40 report as the starting point with the TOC
developed by the group.
16-20 GTG ETWG
Equivalence Testing Assuming Change
in Process (From Item 11-40)
Continue
This item will continue to develop the 2-sample procedure for Vol
II (Process sensitive materials). A new item will be created for
Chapter 1 for Volume 1. Will treat A/B-basis in Volume I as the
fixed numbers to be met by a one-sample test.
16-22 MTG ASG
Identification of Forging Types for Tables
with A- and B-basis
Approved w
Changes and
Closed
Approved with Changes: New item for MLX17 and PH13-8. For
MLX17, confirm details of the source material for data. The
footnote is an improvement though there are concerns about the
forms used to compute the numbers. There were questions about
the 13-8 forms in the data set, too.
16-23 GTG PSG
Re-evaluate Guidelines for Effect of
Temperature Curves
Continue
This item was discussed as part of reviewing item 18-08, analysis
of IN 718 cast data. Options will be investigated and discussed in
the spring.
M-9
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
16-24 GTG
Guidelines for Modulus When Average
Value is Insufficient
Continue
Revise text as shown in slides 50 & 51, 53, 54.
Based on 18-24: We need to review the guideline to handle both
small and large data sets, ranges that do not overlap.
16-29 GTG ASG
Review of Section 1.4.7 Bearing
Properties
Continue No effort on this item.
16-30 MTG
AM-355 Stainless Steel in SCT850
Condition
Continue
It was proposed that a footnote be added. J. Rubadue will work
with R. Reinmuller to draft the appropriate language.
16-32 MTG MATSSG
Mechanical Properties for 7097-T7651
Aluminum Alloy Plate
Approved
and Closed
Approved design properties from the previous meeting plus tables
and text proposed at this meeting. Open a new item to analyze
stress-strain curves and compression modulus data.
16-34 GTG
Review Guideline on Stress-Strain
Submittal for Number of Curves per
Thickness Range
Approved
and Closed
C. Shannon presented this item to require additional stress-strain
curves for analysis.
16-36 GTG-F FTG
Use of T99 as A-Basis When Higher than
Specification for Fastener Shear and
Tension
Continue
C. Shannon to prepare agenda item to revise to use the
specification minimum when lower than the data. Related to Item
16-12.
16-37 GTG-F FTG
Chapter 1 Guidelines on Fastener
Design Allowable Usage
Continue
C. Shannon will circulate a draft for review and get input from J.
Layton.
16-40 MTG
Estimated Values in Table 7.3.2.0(c )
Copper Beryllium Strip
Continue No effort was expended on this item.
16-41 GTG
Update Static Property Examples in
Section 9.8.1
Continue
Feedback from the agenda is requested. More statistical tables
and explanations will be added. Some corrections were
identified. Let J. Rubadue know if you would like a copy of the
Excel file to use with MIDAS.
17-09 MTG Fatigue Curves for 2099-T83 Extrusion Continue Data are available and needs to be analyzed
17-10 MTG Fatigue Curve for 2099-T81 Extrusion Continue Data are available and needs to be analyzed
17-19 MTG
Addition of Transverse Bearing Strength
Properties for Custom 465 Bar
Continue Data are still needed
17-23 GTG
Legacy Alloy Review Strategy – Near
Term
Continue
Placed On Hold for 2 years to see how new contract with funding
for limited testing works.
17-25 GTG
Re-evaluation of Reduced Ratio Sample
Size Determination
Continue
There is interest in this method. In many cases the tensile will
need to be averaged and paired with each secondary property
creating 2 ratios. The effect of this method will be to increase the
number of pairs used to determine the reduced ratio.
17-26 GTGASG/MATSSG/PSG
Guidelines for Generation and Use of
A/B Allowables for Castings
Continue Contact D. Hall if you are interested in this topic
17-28 GTG-F FTG
Consideration of Origin in Multiple
Regression Analysis for Joint Allowables
Continue
Boeing and Arconic will send more data to test this new modeling
method.
17-29 GTG-F FTG
Replacement of T90 Yield Curve with a
Multiple-Regression Typical Yield Curve
for Joint Allowables
Continue
C. Shannon will look into the history and find when table labels
were changed. Verify what "conservatively adjusted average"
means.
17-30 GTG-F FTG
Revision of Table Format for Joint
Allowables
Continue Waiting on Item 17-29.
17-31 FTG
Sunset Shear Strength Rule Criteria
Addition
Continue
Low priority. Placed on hold till Sunset Clause revision is
determined.
17-32 GTG-F FTG Edit Table 8.1.5.1 Continue Prepare an agenda item for Spring meeting based on discussions.
M-10
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
17-33 GTG PSG
Alternative Fitting Function for Effect of
Temperature Data
Continue
Placed On Hold until data are received that would benefit from
this form.
17-34 GTG SSWG
Guidelines for Rejection of Stress-Strain
Curves from Parametric Analysis
Continue
No effort on this item. A proposal will be prepared for the spring
meeting.
17-39 GTG Stress-Strain Curve Working Group
Closed w no
Action
This group is dissolved. Items will be opened to address in
appropriate groups as they arise.
17-41 MTG
R-Curve for Alclad 2029-T8 Aluminum
Alloy Sheet
Continue
L-T analyzed. T-L data available. Will present this in an agenda
for the next meeting to include in MMPDS-15.
17-43 MTG
R-Curves for 2624-T39 and T351
Aluminum Alloy Plate
Approved w
Changes and
Closed
Round W to 16.0 instead of 15.9 inches. That would have no
impact on the results.
17-44 GTG
Clarification of Ten-Lot Minimum
Requirement for Derived Properties
Continue
There was much discussion on revision of wording with no
agreement. This will be discussed in MATSSG at the spring
meeting. It was suggested that the sentence in section 9.5,
paragraph on page 9-32 "For a single lot of material, only one
heat treat lot may be used to meet the 10-lot requirement", may
be appropriate as the footnote for Table 9.2.4.1.
17-45 MTG
Effect of Temperature Curves for 2395-
T84 Extrusion
Continue No effort on this item.
17-47 GTG-F FTG
Clarification of Guidance for
Normal/Censored Normal Analysis
Continue No effort on this item.
17-52 GTG FatWG
Review Section 9.6.1 - Load and Strain
Control Fatigue
Continue
The FatWG did not meet due to time constraints. Battelle will help
the WG Chair organize telecoms
17-54 MTG
Inclusion of Properties for AMS 4221,
2124-T8151 Plate
Continue
Sources are checking to confirm that their data have been
received.
17-55 MTG PSG
Supplemental Data for Ti-6-2-4-2
Forging
Continue
D. Hall will review the amount of data Battelle has for each
property.
17-56 MTG FCG Analysis for 2397-T87 Plate Continue
Data are available and need to be analyzed. Additional data are
expected.
17-57 MTG
Re-evaluate Fatigue Analysis for 2024-
T4 Multiple Product Forms
Closed w no
Action
Product form is not listed in the source traceable to the
specimens, thus the fatigue curves could not be analyzed by
product form.
17-58 MTG How Casting Specification Work Continue
Plan to contact AFS to determine the next alloy they plan to work
on.
17-61 GTG
Revising R-curve Requirement in Table
9.2.4
Continue
Some data are being analyzed, providing an opportunity to
review data being submitted.
17-62 GTG FatWG
Revising Fatigue Requirement in Table
9.2.4
Continue
The FatWG did not meet due to time constraints. Battelle will help
the WG Chair organize telecons
17-63 GTG FatWG
Use of Box-Cox Transformation in the
Fitting of Fatigue Data
Continue
The FatWG did not meet due to time constraints. Battelle will help
the WG Chair organize telecons
17-64 GTG ETWG
Northrop Grumman Design Allowables
for Additive Ti 6-4
Closed w no
Action
NG's presentation has been approved for release and will be
included in the minutes
17-69 GTG ASG, MATSSG
Pairing of Tensile Coupon with Shear
and Bearing Orientations
Closed w no
Action
J. Rubadue presented this item and requested it be closed with no
action.
18-01 GTG GSG, ASG, MATSSG
Environmentally Assisted Cracking in
Aluminum Alloys (EASA SIB 2018-04)
Closed w no
Action
This item was closed with no additional action or discussions.
M-11
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
18-04 GTG MATSSG
Determine Minimum Thickness for Die-
forging Bearing Tests
Approved w
Changes and
Closed
Some changes made by MATSSG to remove version of specs.
Open new item for specification version control
18-05 GTG MATSSG Data Quantities for Large Gage Ranges Continue
J. Goodman, B. Krile, and J. Rubadue will work on this item for
the Spring meeting.
18-06 GTG-F FTG
Revision of Figure 9.3.4.4 Failure Codes
for Fasteners
Continue No effort on this item.
18-07 FTG WWG
Review of Inconsistencies in Table
8.2.2.1.2(d) for Spot-Weld Joints
Continue
WWG did not meet to review the item. We will review this at the
next meeting.
18-08 MTG
718 Investment Cast (AMS5383)
Addition of Tensile A/B-basis and
Elevated Temperature
Continue
Discussed in PSG. Find out if the supplier of data has information
on the Grade.
18-09 GTG PSG Update Creep Guidance in Chapter 1 Continue D. Hall will circulate draft for additional comments.
18-10 GTG Data Requirements for Forgings Continue Waiting till requirements determined for castings.
18-11 MTG
Stress-Strain Curves for 2050-T852
Aluminum Alloy Die Forging 4.000-
6.000 inch
Continue
Data are needed to complete the analysis.
Aubert & Duval will be contacted for assistance.
18-12 GTG
Guidelines for Smooth Transition of
Properties Across Thickness Ranges
Closed w no
Action
Case-by-case engineering judgement will be used.
18-13 GTG
Guidelines for Exclusion of Low
Secondary Property Test Values
Continue
Agenda item has some examples. Accumulate examples for
future discussion.
18-14 MTG
Addition of A206.0-T4 and T71 Sand
Casting Stress-Strain Curves, Physical
Properties, and Fatigue Analyses
Continue No progress has been made
18-15 GTG
Guidelines for Non-Monotonic Stress-
Strain Response
Closed w no
Action
Item 17-34 will cover these guidelines
18-16 MTG
Full-Range Stress-Strain Curves for
2050-T852 Aluminum Alloy Die Forging
Continue Check stress-strain rates for the test.
18-17a MTG
Design Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
Approved w
Changes and
Closed
Approved pending publication of the specification. Intro section
includes changes from MATSSG.
18-17b MTG
Design Allowable Properties for 7160-
T7651 Aluminum Alloy Plate
60 Day
Approval
60 Day approval on stress-strain curves since they were included
in a Handout.
18-18 FTG
Update AMS-QQ-A-250/4 in Table
8.2.2.1.2(a) (MMPDS-13)
Continue
Replace AMS-QQ-A-250/4 with the four digit AMS spec.
WWG needs to review the table and provide guidance.
Review changes due to the stabilization of QQ specs being
replaced with AMS specifications which represent specific
tempers. Are these welding combinations appropriate?
Revisit the name of the item to be more inclusive.
18-19 MTG
Legacy Confirmation for Ti-6-4
Investment Castings per AMS4992
Continue
This item is a spin-off from Item 03-14. Data are available from
Howmet and PCC.
18-20 MTG
Upgrade S-Basis to A- and B-Basis 7075-
T76, T7651 Bare and Clad Sheet and
Plate
Continue
This item is a spin-off from Item 10-14. Data are available from
Aleris, Alcoa, AMAG, and Kaiser.
18-21 MTG
Upgrade S-basis to A/B-basis for 2219-
T852 Aluminum Alloy Hand Forgings
Continue
This item is a spin-off from Item 10-15. Data are available from
Weber and Alcoa.
18-22 MTG
Legacy Confirmation and Upgrade to A-
and B-basis for 7075-T76511 Extrusion
Continue
This item is a spin-off from Items 03-14 and 10-15. Data are
available from Alcan, Kaiser, and Universal Alloy.
M-12
Final Initial
Title Disposition
32nd MMPDS Coordination Meeting
MINUTES AGENDA ITEM SUMMARY
Item
No
Responsible Group32nd Meeting Minutes
Sorted by Item Number
18-23 MTG Upgrade of 7XXX Series Fatigue Curves
Approved
and Closed
Curves were redrawn for clarity from the database, with some
including additional information on orientation of data points.
18-24 MTG
Contemporary Tension and
Compression Modulus Data for Ti-6Al-
4V Annealed Sheet
Continue
Need to reconsider Item 16-24 as the new guideline was unclear
how analysis results should be interpreted.
Boeing requests plate material. They can do the modulus testing
if someone can donate material.
18-25 MTG
Proposal for AA/ANSI Alloy Designation
System for Aluminum Alloy Powder and
Parts
Closed w no
Action
A copy of this presentation will be posted with the minutes.
Feedback from MMPDS members was requested. It was
suggested that a variation be added to identify the way the
powder was made. Discussed that it may not show up on the
alloy name, but may be in the Color sheet. Suggested that a
similar proposal be developed for wire.
18-26 MTG
Introduction to AA7160: A New Family
of High Strength, High Toughness, and
Corrosion Resistant Plate by Scott
Buchwald
Closed w no
Action
A copy of this presentation will be posted with the minutes. We
will open new items to analyze data when it is provided to
Battelle.
18-27 MTG
Introduction to Elektron 21 (EV31A) Billet
and Slab for Machine from Solid
Applications
Closed w no
Action
A copy of this presentation will be posted with the minutes. We
will open new items to analyze data when it is provided to
Battelle.
18-28 GTG
Using the Logarithm Transformation with
MIDAS Analysis of Minimum Properties
Continue
Battelle will investigate using this method on some of the data we
have.
18-29 GTG Applicability of Stress-Strain Models
Approved
and Closed
Approved to add text in proposal of Item 15-34 to MMPDS-14.
Item 15-34 will be continued to work on initial issue.
NIN MTG
Secondary Properties for 718 Bar per
AMS 5662 and AMS 5663
Continue Data are requested
NEW GTG
Identification of Response to Heat Treat
Properties in MMPDS
New
Review how capability / response to heat treat tempers are
identified in MMPDS. Should something be put in the header
instead of a footer to make it clear that user properties may vary
from those in the table.
NEW GTG
Derived Properties Requirement When
Expanding Thickness Range in a Table
New
Item 15-51 was closed with the action to open a guideline
improvement item. It was requested that the guidelines be
modified to require submittal of derived property data when
expanding the thickness range of an existing table.
NEW MTG
Identification of Forging Types for PH13-
8 and MLX17
New
Spin off from Item 16-22 for MLX17 and PH13-8. Confirm details
of the source material for data.
NEW GTG One-Sample Equivalence Method New
Related to Item 16-20 for one-sample equivalence test for
MMPDS.
NEW GTG Removing Test Specification Version New
From Item 18-04, to remove test specification versions and
include a statement or footnote that the current version of the
specification should be used.
NEW GTG-F FTG Revision of Sunset Clause New
From Item 12-105. FTG would like to consider revision of the
sunset clause.
M-13
Last Name First Name Company ISG GSG Joint MTSSG ASG ETWG GTG MTG PSG GTG-FTG MTG FTG GCC
Anderson Neil Boeing 1
Buchwald Scott Constellium 1 1 0
Bakuckas John FAA 1 1 1 1 1 1 1 1 0 1
Bittner Peter Constellium 1 1 1 1 1 1 1 1 1 0 1
Borsinger Matthew DLA 1 1 1 1 1 1 1 1 0 1
Bouwhuis Brandom Burloaktech 1 0
Bray Gary Arconic 1 1 1 1 1 1 1 1 0 1
Cleveland Doug Luxfer MEL Technologies 1 0
Cordner Samuel NASA 1 1 1 1 1 1 1 1 0 1
Crill Mathew Boeing 1 1 1 1 1 1 1 1 1 0 1
Cox Kelsea Boeing 1 1 1 1 0
Daley Nancy Aerojet Rocketdyne 1 1 1 1 1 0 1
Ehrig Toni IMA GMBH 1 1 1 1 1 1 1 1 1 0
Emerick Sherry Boeing 1 1 1 1 1 1 1 1 0
Esparragoza Manuel QuesTek Innovations, LLC. 1 1 1
Freisthler Mark FAA 1 1 1 1 1 1 1 1 0 1
Garcia-Avila Matias ATI Specialty Materials 1 1 1 1 1 1 1 1 0 1
Goodman Jay Arconic 1 1 1 1 1 1 1 1 0 1
Guerrier Paul Moog 1
Gurrola Robert Arconic 1 1 1 1 1 1
Hahn Michael Northrop Grumman Aerospace Systems 1 1 1 1 1 1 1 1 0 1
Hall Doug Battelle 1 1 1 1 1 1 1 1 1 1 1
Harris Ian EWI 1 0
Heine Christoph Airbus 1 1 1 1 1 1 1 1 0 1
Hernandez-Otero Edwin Boeing 1 1 1 1 1 1 1 1 0 1
James Mark FAA 1
Jenkel Steven Pratt & Whitney 1 1 1 1 1 1 0 1
Jesequel Hailey Universal Alloy Corporation 1 1 1 1 1 1 1 0
Jones Marshall NAVAIR 1 1 1 1 1 1 1 1 0 1
Kabbara Jim FAA 1 1 1 1 1 1 1 1 0 1
Khosla Sunil Aleris 1 1 1 1 1 1 1 0
Krile Robert Battelle 1 1 1 1 0
McCool Kerri Honeywell Aerospace 1 1 1 1 1 1 1 1 1 0 1
Michaelis Tim Kopter 1 1 1 1 1 1 1 1 1 0 1
Mies Deborah Granta 1 1 1 1 1 0
Nash Roy Kaiser Aluminum 1 1 1 1 1 1 1 1 1 1
Niedzinski Michael Constellium 1 1 1 1 0 1
32nd MMPDS Coordination Meeting Attendance - September 10-13, 2018
M-14
Last Name First Name Company ISG GSG Joint MTSSG ASG ETWG GTG MTG PSG GTG-FTG MTG FTG GCC
32nd MMPDS Coordination Meeting Attendance - September 10-13, 2018
Nordheim Cody Luxfer MEL Technologies 1 0
Norimatsu Koichi IHI Corporation 1 1 1 1 1 1 1 1 1 0 1
Ostroski Anthony Boeing 1 1 1 1 1 1 1 1 0 1
Padilla Kyle LISI Aerospace 1 1
Pudjoprawoto Randyka Honeywell Aerospace 1 1 1 1 1 1 1 1 1 0 1
Reinmuller Roger Lockheed Martin 1 1 1 1 1 1 1 1 1 0
Reeves Daniel Blue Origin 1 0
Robertson Jessica Haynes International 1 1 1 1 1 1 1 1 1 0 1
Rubadue Jana Battelle 1 1 1 1 1 1 1 1 0 1
Rossi DJ Westmoreland Mech Testing 1 1 1 1 1 1 1 1 1 0
Rossi Jeff Westmoreland Mech Testing 1 1 1 1 1 1 1 1 1 0
Rossi Jim Westmoreland Mech Testing 1 1 1 1 1 1 1 1 1 0
Shannon Carinne Battelle 1 1 1 1 1 1 1 1 0 1
Sodouri Pedrum Norsk Titanium 1 1 1 1 1 1 0 1
Stonaker Kevin FAA 1 1 1 1 1 1 1 1 0 1
Steele Leslie UTAS 1 1 1 1 1 1 1 1 1 0 1
Steevens Andrew Boeing 1 1 1 1 1 1 1 1 0 1
Takahashi Kotomi IHI Corporation 1 1 1 1 1 1 1 0
Thompson Steven AFRL/RXSA 1 1 1 1 1 1 1 1 1 0 1
Timko Mark Weber Metals 1 1
Vico Federica Norsk Titanium 1 1 1 1 1 1 0 1
Vogel Bret Textron 1 1 1 1 1 1 1 1 0
Weihmuller Lance Bell Helicopter 1 1 1 1 1 1 1 0 0
Wheelock Paul Rolls-Royce Corporation 1 1 1 1 1 1 1 1 1 0 1
Wooley Lauren GE Additive 1 1 1 1 1 1 1 0 1
M-15