Lecture Notes for Contact-Impact Algorithms for Large-Deformation Finite-Element Analysis

摘要

Finite element codes with contact-impact capability are applicable to a class of structural problems where adjacent components may independently slide, separate, and impact along interfaces. Problems of this sort are common in the defense community for analyzing axisymmetric gun fired projectiles, laydown bombs, and a variety of shape charge designs of either the jet or fragment type. The nuclear industry has interest in analyzing the impact of shipping casks containing radioactive materials, pipe to pipe impact, as well as soil-structure interaction problems. In the development that follows, we consider three-dimensional algorithms. Similar techniques are employed in two dimensions. Several example applications are shown. (ERA citation 08:039901)