International Journal of Impact Engineering, volume 28, issue 9, pages 947-966

Conversion of 3D distorted elements into meshless particles during dynamic deformation

Gordon R. Johnson 1
Robert A. Stryk 1
1
 
Alliant Techsystems Incorporated, 4700 Nathan Lane N., Plymouth, MN 55442, USA
Publication typeJournal Article
Publication date2003-10-01
scimago Q1
SJR1.553
CiteScore8.7
Impact factor5.1
ISSN0734743X, 18793509
Mechanical Engineering
Mechanics of Materials
Civil and Structural Engineering
Automotive Engineering
Aerospace Engineering
Safety, Risk, Reliability and Quality
Ocean Engineering
Abstract
This paper presents a description of an algorithm to automatically convert 3D distorted elements into meshless particles during dynamic deformation. It also includes an improved (invariant) particle algorithm that allows for a more accurate treatment of boundaries and interfaces. These new 3D algorithms have been incorporated into an explicit Lagrangian code that includes both elements and particles. They provide for increased capability and accuracy for Lagrangian computations involving severe distortions. Several 3D examples are included to demonstrate the new technique.
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