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Deformation induced anisotropy and memorized back stress in constitutive model

1998; Elsevier BV; Volume: 14; Issue: 7 Linguagem: Inglês

10.1016/s0749-6419(98)00029-1

1879-2154

Haruto Ishikawa, Katsuhiko SASAKI,

Mechanical stress and fatigue analysis

Plastic-deformation induced anisotropy and memorization of back stress due to pre-loading affect the current loading. These phenomena are examined with tension and/or torsion tests, using SUS 304. Considering both anisotropy, and movement and memorization of back stress, equi-plastic surfaces are predicted. This explains the dependence of current loading on pre-loading well. Simulated strain paths during radial loading after shear straining show good agreement with experiments.