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Three‐dimensional computer code for dynamic response of solids to intense impulsive loads
Author(s) -
Johnson Gordon R.,
Colby Dwight D.,
Vavrick Daniel J.
Publication year - 1979
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620141208
Subject(s) - computation , epic , code (set theory) , finite element method , core (optical fiber) , computer science , source code , surface (topology) , computer program , lagrangian , constant (computer programming) , computational science , algorithm , structural engineering , geometry , engineering , mathematics , programming language , set (abstract data type) , art , telecommunications , literature
Earlier publications demonstrated the capability of the EPIC‐3 code to perform high velocity impact computations in three dimensions. 1,2 These capabilities were demonstrated with simplified material and sliding surface models in a core‐contained computer program. This paper presents recent developments which include more comprehensive material and sliding surface formulations, and an expanded computer program which can handle problems of unlimited size by beffering data between disc files and core. The EPIC‐3 code is based on an explicit, finite element, Lagrangian formulation which uses constant strain tetrahedral elements.