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Patent Searching and Data


Title:
COMPUTERIZED DEFORMATION ANALYZER
Document Type and Number:
WIPO Patent Application WO2003102825
Kind Code:
A3
Abstract:
According to one embodiment of the invention, a method for determining deformation of a surface of a material is provided. The method includes receiving, at a computer, an elastic deformation range and a plastic deformation range of the material. The method also includes modeling a region of the material with a mesh. The mesh includes a plurality of elements. The method also includes determining, by performing a finite element analysis on the mesh by the computer, a displacement for at least one point on each of the elements. The displacement results from a set of modeled boundary conditions. The finite element analysis includes recurrently approximating the modulus of elasticity for each element according to the elastic deformation range and the plastic deformation range. The act of approximating is based on a value of strain calculated from a previously calculated element displacement.

Inventors:
BROMBOLICH DANIEL L
Application Number:
PCT/US2003/016489
Publication Date:
April 29, 2004
Filing Date:
May 23, 2003
Export Citation:
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Assignee:
ELECTRONIC DATA SYST CORP (US)
International Classes:
G06F17/50; (IPC1-7): G06F17/50; G06T17/20
Foreign References:
US5390127A1995-02-14
US6263252B12001-07-17
US6212486B12001-04-03
Other References:
TANG S C ET AL: "Evaluation of sheet metal forming process design by simple models", ASME MATER DIV PUBL MD 1988 PUBL BY AMERICAN SOC OF MECHANICAL ENGINEERS (ASME), NEW YORK, NY, USA, vol. 8, 1988, pages 19 - 26, XP008028286
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