FIREPROOF AND FIRE RESISTANT MATERIALS Federal Aviation Administration Project Manager: J. Reinhardt...
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Transcript of FIREPROOF AND FIRE RESISTANT MATERIALS Federal Aviation Administration Project Manager: J. Reinhardt...
FIREPROOF AND FIRE RESISTANT MATERIALS
Federal Aviation Administration
Project Manager: J. ReinhardtWilliam J. Hughes Technical Center
Airport and Aircraft SafetyResearch and Development Division
Atlantic City International Airport, NJ
PURPOSE
• An ARAC Subcommittee is looking at revising AC25-135 (Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards, and Criteria)
• Develop a means to comply with the AC in order to evaluate various test specimens to determine whether they may be classified as:– Fireproof– Fire Resistant
• Determine the feasibility of the testing methods performed.
Current Proposed Procedure
• CALIBRATION OF THERMOCOUPLES
• Preheat Burner for 2 minutes.
• Place Flame on Thermocouples for 90 seconds.
• All Thermocouples must read 2000°F +/- 150°F .
Current Proposed Procedure
• CALIBRATION OF CALORIMETERS
• Preheat Burner for 2 minutes.
• Place Flame on Calorimeters for 90 seconds.
• All Calorimeters must read above 10 BTU/(ft²·sec ) .
Current Proposed Procedure• BURNER TEST
• Preheat Flame for 2 minutes.
• Place Flame for 16 minutes on the various test specimens:
• 4140 Steel (reference material)
1. 15-5 PH Steel
2. Titanium 6A1-4V
3. Inconel 718
4. Aluminum 7075
• Record time temperature data at the 0% , 25%, 50%, 75%, and 100% positions of the diameter.
• Determine the loss of Ultimate Strength at the 5 minute and 15 minute intervals.
Status• TESTING
• Three out of the five material selected have been tested according to the prescribed procedure (4130 Steel, 15-5 PH Steel, and Titanium 6A1-4V) .
• Available test data is currently been analyzed (reference material)
• PROCEDURE• ARAC Subgroup is currently looking at the data to
determine if a test protocol change is required.