Author(s)

G. Bessette, C. Vaughan, R. Bell & S. Attaway

Abstract

Zapotec: a coupled methodology for modeling penetration problems G. Bessette, C. Vaughan, R. Bell, & S. Attaway Sandia National Laboratories, Albuquerque, NM USA Abstract Tightly coupled methods are well suited for modeling penetration problems, where the materials involved have vastly differing response. Here we describe the development of Zapotec, a coupled Euler-Lagrange computer code, and its application to earth and ballistic penetration problems. In particular, we will focus on code coupling issues encountered for these applications as well as other software development issues. 1 Introduction Penetration problems are dynamic in nature, with the physical phenomena characterized by transient wave propagation, large material deformations, and multi-body contact. The coupled nature of the physical problem poses a significant challenge for numerical modeling, especially when the material strength differs significantly in the penetrator and target media. In this paper, we describe the develo

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