Paper Carton Analysis
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![Page 1: Paper Carton Analysis](https://reader033.fdocuments.in/reader033/viewer/2022051212/5598c88e1a28ab40568b45f5/html5/thumbnails/1.jpg)
Geetha
Jagadeesan
Janet Amely
College of Engineering Guindy
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Replacement of physical testing of paper
cartons in industry with a database
Creation of accurate Finite Element Model
of paper cartons
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Investment on physical testing
Time
Optimization
Help SSI’s and Startups
Paper cartons dominate packaging market
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CARTON DATABASE
VALIDATED SIMULATION
FINITE ELEMENT MODEL
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Creation of finite element model of paper
cartons
Physical testing of cartons for the purpose of
validation
Simulation of loads
validation
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Material Properties
physical
simulation
2 4 6 8 10 12 14 16
50
100
150
200
displacement(mm)
force(N)
Material testingFinite Element Model
Simulation
Validation
Carton Testing
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Box Compression Strength
Pulp board 220 GSM, 350 GSM
Box dimensions
Ambient conditions
Tuck-in carton
Physical testing of material
Physical testing of carton
Finite Element model
Simulation
Comparison of simulation and
physical testing
Improvement of
Finite Element Model
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Grain direction
Machine and cross direction
Orthotropic
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Geometry
Thickness
Young’s modulus
Shear modulus
Poisson’s ratio
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Paperboard selection
• Pulp board with similar properties on both sides
Paperboard conditioning
• Temperature :27+/-1 ̊ C
• Relative humidity :65+/-2%
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Grammage
and
Direction
Dimensions Thickness
(mm)
Tensile
strength
(N/mm2)
Young’s modulus
(N/mm2)
220 GSM
Machine
direction
L=180mm
W=25mm
0.238 26.62 334.47
220 GSM
Cross
direction
L=180mm
W=25mm
0.238 15.18 144.75
350GSM
Machine
direction
L=180mm
W=25mm
0.375 30.11 345.95
350GSM
Cross
direction
L=180mm
W=25mm
0.375 17.79 167.27
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Stress (kgf/cm²)
00
100
200
300
Percentage Strain0.0 5.0 10.0 15.0 20.0
Break
Greatest Slope
Preload
General Purpose Pull to Break Setup
Preload:
Speed:
Gauge Length:
Area:
Break:
1.00 N
10.0 mm/min
About 120.0 mm
About 25.1 mm x 0.360 mm
Load drops quickly
350 GSM-MD
Stress (kgf/cm²)
0
50
100
150
200
Percentage Strain0.0 5.0 10.0 15.0 20.0 25.0
Break
Greatest Slope
General Purpose Pull to Break Setup
Preload:
Speed:
Gauge Length:
Area:
Break:
Not Applicable
20.0 mm/min
About 120.0 mm
About 25.1 mm x 0.360 mm
Load drops quickly
350 GSM-CD
350 GSM Machine Direction
350 GSM Cross Direction
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• Geometric model
• Finite Element Model
• Analysis
• Postprocessing
• Refining Results
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MESH SIZE (mm) FORCE (N)
12.3 0.7542
6.15 1.2057
3.075 1.2060
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• Carton design :Glued
• Dimension : 85mm * 125mm * 246mm
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Grammage and
direction
Compressive Strength
(N/mm2)
Load at Limit
(N)
Stress at limit
(N/mm2)
220 GSM Machine
direction
0.00519 41.10 0.00392
220GSM cross
direction
0.00421 26.38 0.0240
350GSMMachine
direction
0.0254 168.92 0.0158
350GSMcross
direction
0.0223 163.53 0.0153
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simulation
physical testing
2 4 6 8 10 12 14 16 18
50
100
150
200
x
y
displacement(mm)
Force (N)
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physical
simulation
2 4 6 8 10 12 14 16
50
100
150
200
displacement(mm)
force(N)
• 10% force deviation
• 4mm peak deviation
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physical
simulation
2 4 6 8 10 12 14 16
50
100
150
200
displacement(mm)
force(N)
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Simulation reliable
Scope for improvement- creasing
phenomenon