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Title: CRASHWORTHINESS SIMULATIONS WITH DYNA3D
Accession Number: 00727323
Record Type: Component
Availability: Find a library where document is available Abstract: Current progress in parallel algorithm research and applications in vehicle crash simulation is described for the explicit, finite-element algorithms in DYNA3D. Two challenging algorithm research problems are addressed: problem partitioning methods and parallel algorithms for contact at material interfaces. 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 22 locally defined contact surfaces and a vehicle-barrier collision modeled with arbitrary contact. A simulation of crash tests conducted for a vehicle striking a U-channel small signpost 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.
Supplemental Notes: This paper appears in Transportation Research Record No. 1528, Current Research on Roadside Safety Features.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Schauer, D AHoover, C GKay, G JLee, A SDe Groot, A JPagination: p. 124-129
Publication Date: 1996
Serial: ISBN: 0309062241
Features: Figures
(7)
; References
(8)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Research; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB
Created Date: Oct 21 1996 12:00AM
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