Improvements of J_2-Deformation Theory and Their Applications to FEM Analyses of Large Elastic-Plastic Deformation
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概要
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Large elastic-plastic deformation in, for example, metal forming processes has been analyzed, so far, primarily on the basis of J_2-deformation theory, especially in situation where strain localization, such as shear-band formation in a block or localized necking in a sheet, takes place. In order to improve the J_2-deformation theory, three constitutive equaitons, one of which was previously proposed by the author, are introduced. By several FEM analyses of fundamental large elastic-plastic deformations, such as uniaxial tension and simple shear, it is demonstrated that these three constitutive equaitons are equivalently effective in predicting the strain localization phenomenon even in a quantitative sense.
- 一般社団法人日本機械学会の論文
- 1990-04-15
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