A Numerical Study on Effects of Fiber-Orientation of a Unidirectional Elastic Solid Under Impact

Abstract

A numerical study on effects of fiber-orientations of a unidirectional linear-elastic solid, not perpendicular to the direction of impulsive loading, on the wave propagation is performed by using a finite difference method, the AWMP code. A two-dimensional case of the penetration of a rigid punch into a unidirectional linear-elastic solid is used as the example. The fiber-orientation is found to play an important role in causing asymmetric wave patterns and generating asymmetric surface waves under symmetric loads. These asymmetric wave patterns resemble those in isotropic solids caused by asymmetric loads.