Shock Waves in 3d Textile Composite Subject to Hypervelocity Impact

Abstract

In hypervelocity impacts of composite materials, shock initiation and interaction with composite constituents dominate its responses, particularly the formation and features of the debris cloud. A numerical simulation was performed in this paper to investigate the wave propagation mechanism and obtain the wave response using the finite element method in order to estimate the features of the hypervelocity impact into honeycomb composite with stitched facesheets. Wave propagation can be seen when the structure is exposed to shock waves in skins made of three-dimensional stitched composite, according to the modeling results. The consequences of the stitching process on wave propagation are demonstrated, and their interactions with the stitching fibers are explained. The modeling was done in this paper and the corresponding shock wave analysis provides new insight into the processes of the analysis of the shock waves and the beginning of the debris clouds. This research thoroughly examines the behavior of a three-dimensional textile honeycomb composite in terms of wave propagation and predictions on the location of potential damages. This would provide comprehensive information that would facilitate the development of the new honeycomb composite presented herein toward validating the modeling results for hypervelocity impact events.