Energy-Absorbing Materials for Improving Helicopter Crashworthiness.
SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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The purpose of the program was to identify materials which were not only suitable for structural components but were capable of absorbing energy at acceptable deceleration levels in a crash environment. After review of available materials for their energy absorption capability, five candidate materials were selected and a test program initiated to demonstrate their attenuation properties. Those selected were three types of honeycomb, a rigid foam, and a flexible foam.