Contact-impact simulations on massively parallel SIMD supercomputers

Conference · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.1016/0956-0521(92)90120-8· OSTI ID:6856340

Plaskacz, E. J. ^[1]; Belytscko, T.; Chiang, H. Y. ^[2]

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1. Argonne National Lab., IL (United States)
2. Northwestern Univ., Evanston, IL (United States)

The implementation of explicit finite element methods with contact-impact on massively parallel SIMD computers is described. The basic parallel finite element algorithm employs an exchange process which minimizes interprocessor communication at the expense of redundant computations and storage. The contact-impact algorithm is based on the pinball method in which compatibility is enforced by preventing interpenetration on spheres embedded in elements adjacent to surfaces. The enhancements to the pinball algorithm include a parallel assembled surface normal algorithm and a parallel detection of interpenetrating pairs. Some timings with and without contact-impact are given.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6856340
• Report Number(s): ANL/CP-76686; CONF-921210-3; ON: DE93004188
• Resource Relation: Journal Volume: 3; Journal Issue: 1-4; Conference: Symposium for high-performance computing for flight vehicles, Washington, DC (United States), 7-9 Dec 1992
• Country of Publication: United States
• Language: English

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42 ENGINEERING
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
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PARALLEL PROCESSING
IMPACT TESTS
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ARRAY PROCESSORS
FINITE ELEMENT METHOD
MECHANICAL STRUCTURES
MESH GENERATION
WAVE PROPAGATION
CALCULATION METHODS
MATERIALS TESTING
MATHEMATICAL LOGIC
MECHANICAL TESTS
NUMERICAL SOLUTION
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SIMULATION
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