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An explicit asynchronous contact algorithm for elastic body–rigid wall interaction
Author(s) -
Ryckman Raymond A.,
Lew Adrian J.
Publication year - 2011
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.3266
Subject(s) - asynchronous communication , integrator , dissipation , computer science , algorithm , time stepping , rigid body dynamics , energy (signal processing) , conservation of energy , mathematical optimization , rigid body , finite element method , mathematics , engineering , structural engineering , classical mechanics , computer network , statistics , physics , bandwidth (computing) , thermodynamics
SUMMARY The use of multiple‐time‐step integrators can provide substantial computational savings over traditional one‐time‐step methods for the simulation of solid dynamics, while maintaining desirable properties, such as energy conservation. Contact phenomena generally require either the adoption of an implicit algorithm or the use of unacceptably small time steps to prevent large amount of numerical dissipation from being introduced. This paper introduces a new explicit dynamic contact algorithm that, by taking advantage of asynchronous time stepping, delivers an outstanding energy performance at a much more acceptable computational cost. We demonstrated the performance of the numerical method with several three‐dimensional examples. Copyright © 2011 John Wiley & Sons, Ltd.