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Firefighting and Emergency Response Study of Advanced Composites Aircraft; Objective 1: Composite Material Damage in Minor Aircraft Fires.
| 题名： | Firefighting and Emergency Response Study of Advanced Composites Aircraft; Objective 1: Composite Material Damage in Minor Aircraft Fires. |
| 作者： | Bocchieri, R. T.; Cozart, K. S.; Kirkpatrick, S. W.; Macneill, R. A.; Wells, S. P. |
| 关键词： | Aircraft Fires; Composite Materials; Condensation; Damage; Degradation; Delamination; Heat Transfer; Mechanical Properties; Microscopy; Physical Properties; Plastics; Polymers; Pyrolysis; Radiant Heat |
| 摘要： | Three aerospace composite materials with quasi-isotropic layup were exposed to varied uniform radiant heating to evaluate the delamination damage caused by the thermal environment. Three classes of matrix resins were evaluated with IM7 carbon fibers; epoxy 977-3, modified bismaleimide RM3002 and condensation polyimide AFR-PE-4. Thermal exposure was mild and indicative of a hydrocarbon pool fire at a standoff from the material. After exposure, the plates were machined into four-point bend and tensile samples and mechanically tested. Mechanical degradation in terms of tensile and flexural modulus and strength were documented as a function of exposure level. Microscopy of the machined sections was performed to document the observed damage. |
| 报告类型： | 科技报告 |
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