Energy absorption of composite material and structureResults are presented from a joint research program on helicopter crashworthiness conducted by the U.S. Army Aerostructures Directorate and NASA Langley. Through the ongoing research program an in-depth understanding has been developed on the cause/effect relationships between material and architectural variables and the energy-absorption capability of composite material and structure. Composite materials were found to be efficient energy absorbers. Graphite/epoxy subfloor structures were more efficient energy absorbers than comparable structures fabricated from Kevlar or aluminum. An accurate method of predicting the energy-absorption capability of beams was developed.
Document ID
19880035545
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Farley, Gary L. (NASA Langley Research Center; U.S. Army, Aerostructures Directorate, Hampton VA, United States)