Simulation of Springback in V-bending Process by Elasto-Plastic Finite Element Method with Consideration of Bauschinger Effect
Simulation of Springback in V-bending Process by Elasto-Plastic Finite Element Method with Consideration of Bauschinger Effect
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考虑包辛格效应的弹塑性有限元法模拟V形弯曲过程中的回弹
DOI：
10.1007/bf03187783
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
F. Yoshida
中科院分区：
文献类型：
--
作者：
T. Uemori;T. Okada;F. Yoshida
本文根据包辛格效应的描述，提出了板料成形回弹的预测方法。它涉及三种不同类型的本构模型：各向同性硬化模型（IH模型），线性运动硬化模型（LK模型），和组合线性-非线性运动和各向同性硬化模型（L-NK+IH模型）。L-NK+IH模型预测的回弹比IH和LK模型预测的回弹更明显。它是由应力-应变响应引起的，其特征是在应力反转期间从完全弹性逐渐过渡到塑性行为，这是L-NK+IH模型所必需的。
This paper presents the prediction of springback in sheet metal forming in terms of the description of the Bauschinger effect. It addresses three different types of constitutive models: an iso-tropic hardening model (IH model), a linearly kinematic hardening model (LK model), and a model of combined linearly-non-linearly kinematic and isotropic hardening (L-NK+IH model). The springback predicted by the L-NK+IH model is found to be more pronounced than that by the IH and the LK model. It is caused by the stress-strain response characterized by the gradual transition from fully elastic to plastic behavior during stress-reversal, which is essential to the L-NK+IH model.