Crashworthiness simulations with DYNA3D

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Description

Current progress in parallel algorithm research and applications in vehicle crash simulation is described for the explicit, finite element algorithms in DYNA3D. Problem partitioning methods and parallel algorithms for contact at material interfaces are the two challenging algorithm research problems that are addressed. Two prototype parallel contact algorithms have been developed for treating the cases of local and arbitrary contact. Demonstration problems for local contact are crashworthiness simulations with 222 locally defined contact surfaces and a vehicle/barrier collision modeled with arbitrary contact. A simulation of crash tests conducted for a vehicle impacting a U-channel small sign post embedded in soil ... continued below

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22 p.

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Schauer, D.A.; Hoover, C.G.; Kay, G.J.; Lee, A.S. & De Groot, A.J. April 1, 1996.

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Description

Current progress in parallel algorithm research and applications in vehicle crash simulation is described for the explicit, finite element algorithms in DYNA3D. Problem partitioning methods and parallel algorithms for contact at material interfaces are the two challenging algorithm research problems that are addressed. Two prototype parallel contact algorithms have been developed for treating the cases of local and arbitrary contact. Demonstration problems for local contact are crashworthiness simulations with 222 locally defined contact surfaces and a vehicle/barrier collision modeled with arbitrary contact. A simulation of crash tests conducted for a vehicle impacting a U-channel small sign post embedded in soil has been run on both the serial and parallel versions of DYNA3D. A significant reduction in computational time has been observed when running these problems on the parallel version. However, to achieve maximum efficiency, complex problems must be appropriately partitioned, especially when contact dominates the computation.

Physical Description

22 p.

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OSTI as DE96009709

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  • 75. Annual meeting of the Transportation Research Board, Washington, DC (United States), 7-11 Jan 1996

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  • Other: DE96009709
  • Report No.: UCRL-JC--123454
  • Report No.: CONF-960170--4
  • Grant Number: W-7405-ENG-48
  • DOI: 10.1533/cras.1996.0006 | External Link
  • Office of Scientific & Technical Information Report Number: 238447
  • Archival Resource Key: ark:/67531/metadc666084

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • April 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 23, 2016, 4:02 p.m.

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Schauer, D.A.; Hoover, C.G.; Kay, G.J.; Lee, A.S. & De Groot, A.J. Crashworthiness simulations with DYNA3D, article, April 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc666084/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.