A Model of Large-Strain Cyclic Plasticity and its Application to Springback Simulation

By Fusahito Yoshida, Takeshi Uemori. 2002

362 citations recorded by the source corpus.

This paper presents a framework of constitutive modeling of large-strain cyclic plasticity which describes both the deformation- and texture-induced anisotropies of materials. In this model, the transient Bauschinger effect is described accurately by a new equation of the backstress evolution, and the strain-range and mean-strain dependencies of cyclic strain hardening are expressed by a model of workhardening stagnation. For the description of texture-induced anisotropy, any of widely accepted yield criteria of orthotropic anisotropy is easily incorporated into this model. This paper demonstrates the advantage of the present model in the springback analysis over other classical models by comparing the FE simulations of draw bending with the corresponding experimental results.

Subfields: Materials Chemistry, Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/88c2a9c4a959b72131c88114db98d20025fb7645

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In Materials Chemistry

In Mechanical Engineering

In Mechanics of Materials

Citations in the corpus

Advances in experiments on metal sheets and tubes in support of constitutive modeling and forming simulations (2007, background): “These factors include the stretching forces applied to the material (Baba and Tozawa, 1964), the coefficient of friction at the material/die interfaces, the tool temperature, the elastic deflection of the die, the deformation history of the material, the work hardening characteristics, and the Bausc”
Study on the influence of work-hardening modeling in springback prediction (2007, background): “…accurately numerically predicted if only isotropic work-hardening is considered, even if the level of equivalent plastic strain is low, which is in agreement with other authors’ conclusions (Geng and Wagoner, 2002; Li et al., 2002a; Yoshida and Uemori, 2003; Lee et al., 2005; Choi et al., 2006b).”
Complex unloading behavior: Nature of the deformation and its consistent constitutive representation (2011, background): “…when the plastic deformation path includes strain increment reversals, as for example being bent and unbent while being drawn over a die radius (Gau and Kinzel, 2001; Chun et al., 2002; Geng and Wagoner, 2002; Li et al., 2002b; Yoshida et al., 2002; Yoshida and Uemori, 2003a; Chung et al., 2005).”