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Title : Validation of Abaqus Explicit – CEL for classes of problems of interest to the U.S. Army
Company : SIMULIA
File Name : validation-abaqus-explicit-cel-problems-us-army-2010.pdf
Size : 26949
Type : application/pdf
Date : 09-Jul-2011
Downloads : 1

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In developing weapon systems for the warfighter, the US Army uses modeling and simulation tools to support the design, test and manufacturing of these systems. One of these tools is Abaqus/Explicit, including the coupled Eulerian-Lagrangian capability CEL. The addition of CEL in version 6.7EF-1 opened the door to a new realm of problems that could not be previously be modeled. With the addition of this new capability came the need for internal validation to establish a level of confidence for the class of problems of interest to the U.S. Army. Over the course of 2 years, several validation problems were modeled and the results compared to either experimental or analytical results. A few of these problems were selected for this paper, including the dynamic tensile extrusion of copper, JWL equation of state of explosive expansion, and compressible inviscid flow in a shock tube. The details of these analyses and comparison to experiment will be discussed along with their practical implications.
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