A model of large-strain cyclic plasticity and its application to springback simulation
A model of large-strain cyclic plasticity and its application to springback simulation
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DOI：
10.1016/j.ijmecsci.2003.10.013
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发表时间：
2003-10-01
影响因子：
7.3
通讯作者：
Uemori, T
中科院分区：
文献类型：
--
作者：
Yoshida, F;Uemori, T
本文提出了一个大应变循环塑性本构模型的框架，它描述了变形和织构诱导的材料各向异性。在该模型中，瞬态Bauschinger效应是准确地描述了一个新的方程的背应力演化，和应变范围和平均应变循环应变硬化的依赖关系表示的加工硬化停滞模型。对于织构各向异性的描述，任何一个被广泛接受的正交各向异性屈服准则都可以很容易地被引入到这个模型中。本文通过对拉弯成形的有限元模拟与相应的实验结果的比较，论证了本模型在回弹分析方面优于其他经典模型。(C)2003 Elsevier Ltd.保留所有权利。
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. (C) 2003 Elsevier Ltd. All rights reserved.