Method and system for modeling spot welds in a finite...

Details Method and system for modeling spot welds in a finite... Method and system for modeling spot welds in a finite...

2006-11-30

2009-12-29

Phan, Thai (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Modeling by mathematical expression

C228S101000, C219S087000

Reexamination Certificate

active

07640146

ABSTRACT:
A system, method and software product for modeling spot welds in a finite element analysis is described. The spots welds are represented by beam elements or solid elements in accordance with an indicator flag. The flag may also be specified as the number (e.g., an integer such as 1, 4, 8 or 16) of solid elements in a cluster representing spot weld. The solid elements may include, but not limited to, hexahedron, tetrahedron, and the likes. The number of solid elements and required nodes are generated for each spot weld based on the indicator flag. A table is formed to group the generated solid elements in a cluster together, so that the force and moment resultants of the spot weld can be computed and assembled in a file.

REFERENCES:
patent: 2007/0053168 (2007-03-01), Sayir et al.
patent: 2007/0090165 (2007-04-01), Kumagai
patent: 2007/0210042 (2007-09-01), Forrest et al.
Seeger, et al., “An investigation on spot weld modelling for crash simulation with LS-DYNA”, Proceedings from 4th LS-Dyna Forum, Oct. 20-21, 2005, pp. B-I-1 to B-I-12, ISBN 3-9809901-1-7, DYNAmore GmbH, Bamberg, Germany.

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