✦ LIBER ✦

ITERATIVE METHOD USING CONSISTENT MASS MATRIX IN AXISYMMETRICAL FINITE ELEMENT ANALYSIS OF HYPERVELOCITY IMPACT

✍ Scribed by Song Shun-Cheng; Duan Zhu-Ping

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 192 KB
Volume: 21
Category: Article
ISSN: 0734-743X
DOI: 10.1016/s0734-743x(98)00025-6

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✦ Synopsis

We present in this paper an iterative method using consistent mass matrix in axisymmetrical finite element analysis of hypervelocity impact. To retain the advantage of integration on an element-by-element basis which is at the heart of modern hydrocodes, we suggest that the first step should be to solve for accelerations at an advanced time step by using the lumped mass approach, then iterate using a consistent mass matrix to improve the estimate. Examples are given to show the improved resolution with the new method.

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