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An ellipsoidal particle–finite element method for hypervelocity impact simulation

✍ Scribed by Ravishankar Shivarama; Eric P. Fahrenthold

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
190 KB
Volume
59
Category
Article
ISSN
0029-5981

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✦ Synopsis

Abstract

A number of coupled particle–element and hybrid particle–element methods have been developed for the simulation of hypervelocity impact problems to avoid certain disadvantages associated with the use of pure continuum‐based or pure particle‐based methods. To date these methods have employed spherical particles. In recent work a hybrid formulation has been extended to the ellipsoidal particle case. A model formulation approach based on Lagrange's equations, with particle entropies serving as generalized coordinates, avoids the angular momentum conservation problems which have been reported with ellipsoidal smooth particle hydrodynamics models. Copyright © 2003 John Wiley & Sons, Ltd.

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