Welding deformation computing method, welding deformation...

Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression

Reexamination Certificate

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C703S007000, C148S558000, C228S112100

Reexamination Certificate

active

07734450

ABSTRACT:
A region for which nonlinear analysis should be carried out is extracted and welding deformation of only the extracted region is computed by nonlinear analysis. Specifically, the displacement and reaction force at the limit surface are computed by linear analysis of the object to be welded, the reaction force at the limit surface is computed by nonlinear analysis of the region for which nonlinear analysis is necessary, an amount of correction of the displacement at the limit surface is computed and the above processing is repeated when it is judged that a difference between the two reaction forces is larger than a predetermined value, and welding deformation of the object to be welded is computed based on the computed displacement if it is judged that the difference between the reaction forces is smaller than the predetermined value.

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