Parallel algorithm for transient solid dynamics simulations using finite elements and smoothed particle hydrodynamics

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Description

An efficient, scalable, parallel algorithm for treating contacts in solid mechanics has been applied to interactions between particles in smooth particle hydrodynamics (SPH). The algorithm uses three different decompositions within a single timestep: (1) a static FE-decomposition of mesh elements; (2) a dynamic SPH-decomposition of SPH particles; (3) and a dynamic contact-decomposition of contact nodes and SPH particles. The overhead cost of such a scheme is the cost of moving mesh and particle data between the decompositions. This cost turns out to be small in practice, leading to a highly load-balanced decomposition in which to perform each of the three ... continued below

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8 p.

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Attaway, S.W.; Hendrickson, B.A.; Plimpton, S.J.; Swegle, J.W.; Gardner, D.R. & Vaughan, C.T. May 1, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

An efficient, scalable, parallel algorithm for treating contacts in solid mechanics has been applied to interactions between particles in smooth particle hydrodynamics (SPH). The algorithm uses three different decompositions within a single timestep: (1) a static FE-decomposition of mesh elements; (2) a dynamic SPH-decomposition of SPH particles; (3) and a dynamic contact-decomposition of contact nodes and SPH particles. The overhead cost of such a scheme is the cost of moving mesh and particle data between the decompositions. This cost turns out to be small in practice, leading to a highly load-balanced decomposition in which to perform each of the three major computational states within a timestep.

Physical Description

8 p.

Notes

OSTI as DE97005363

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  • 1997 international conference on computational engineering science, San Jose (Costa Rica), 4-9 May 1997

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  • Other: DE97005363
  • Report No.: SAND--97-0990C
  • Report No.: CONF-970558--3
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 474929
  • Archival Resource Key: ark:/67531/metadc687061

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  • May 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • April 13, 2016, 4:11 p.m.

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Attaway, S.W.; Hendrickson, B.A.; Plimpton, S.J.; Swegle, J.W.; Gardner, D.R. & Vaughan, C.T. Parallel algorithm for transient solid dynamics simulations using finite elements and smoothed particle hydrodynamics, article, May 1, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc687061/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.