Comparison of two numerical methods for shocks in one-dimensional elastic-plastic solids.

摘要

In this paper we compare and contrast a second-order Godunov method with a second-order explicit finite element method for the dynamic response of one-dimensional elastic-plastic solids. We examine the numerical dissipation and dispersion of the two techniques, and compare their performance on problems describing the nonlinear response of an elastic-plastic bar. 13 refs., 13 figs.