Analysis of Elastic-Plastic Impact Involving Severe Distortions

[+] Author and Article Information
G. R. Johnson

Government and Aeronautical Products Division, Honeywell Incorporated, Minneapolis, Minn.

J. Appl. Mech 43(3), 439-444 (Sep 01, 1976) (6 pages) doi:10.1115/1.3423887 History: Received June 01, 1975; Revised November 01, 1975; Online July 12, 2010


A Lagrangian analysis technique is presented for two-dimensional axi-symmetric impact problems involving elastic-plastic flow. This technique is based on a triangular finite-element formulation rather than the quadrilateral formulation generally used in comparable finite-difference methods. For impact problems involving severe distortions, the triangular element formulation is better suited to represent the severe distortions than is the traditional quadrilateral finite-difference method. Included are the formulation of the technique and illustrative examples.

Copyright © 1976 by ASME
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