1225 逆解析による引張試験におけるくびれ発生以降の応力-ひずみ曲線の評価(G01-1 計算力学の展開,G01 計算力学)

概要

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The way to obtain an accurate stress-strain curve of metal material under large plastic deformation including necking by tracing the experimental tensile load-elongation curve using inverse analysis is suggested. The tested load-elongation curve of the tensile specimen is considered as a target, and the true stress-strain curve of the material will be obtained when the simulated load-elongation curve is completed using a large elastic-plastic deformation finite element program by adjusting the trace of the stress-strain curve step by step according to the relative error of the load-elongation curve. Applicability and accuracy of this method was estimated by numerical analysis for a smooth round tensile test.
一般社団法人日本機械学会の論文
2007-09-07