A Plastic Constitutive Model for Anisotropic Materials and Finite Element Analysis of Strain Localization Process
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概要
- 論文の詳細を見る
A plastic constitutive model for initially orthotropic but subsequently skewed anisotropic materials is proposed in this paper. The variation of anisotropic axes is discussed within the framework of objectivity, and the evolution of the axes is formulated. It is shown that the yield function proposed is identical to Hill's quadratic yield function when the anisotropic axes lie along the base vectors. Applying the conventional laws for both work-hardening and material flow to the yield function, an anisotropic constitutive model is completed. A finite element equation is obtained next, based on the updated Lagrangian formulation. A fully three-dimensional analysis is carried out to predict the strain localization behavior of anisotropic sheet metals. The direction of strain localization is strongly affected by the initial configuration of the anisotropic axes, and the simulated result shows fairly good agreement with the experimental one.
- 一般社団法人日本機械学会の論文
- 1995-10-15
著者
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KAGOSHIMA Yasushi
Graduate School of Material Science, University of Hyogo
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Yamaguchi K
Chiba Univ. Chiba
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Yamaguchi Katsuhiko
Department Of Mechanical And System Engineering Kyoto Institute Of Technology
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IMATANI Shoji
Department of Energy Conversion Science, Graduate School of Energy Science, Kyoto University
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Kagoshima Y
Photon Factory National Laboratory For High Energy Physics
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今谷 勝次
Department Of Energy Conversion Science Graduate School Of Energy Science Kyoto University
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Imatani Shoji
Department Of Mechanical And System Engineering Kyoto Institute Of Technology
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Imatani Shoji
Department Of Energy Conversion Science Kyoto University
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Saito Takehiko
Department Of Mechanical And System Engineering Kyoto Institute Of Technology
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Yamaguchi Katsuhiko
Photon Factory National Laboratory For High Energy Physics
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Saito T
Department Of Mechanical And System Engineering Kyoto Institute Of Technology
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Saito Takehiko
Graduate School, Kyoto Institute of Technology
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Kagoshima Y
Graduate School Of Material Science University Of Hyogo
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