Prediction of differential work-hardening behavior under biaxial tension of steel sheet using crystal plasticity models
Prediction of differential work-hardening behavior under biaxial tension of steel sheet using crystal plasticity models
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DOI：
10.1016/j.promfg.2018.07.210
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
T. Hama;H. Fujimoto;H. Takuda
中科院分区：
文献类型：
--
作者：
T. Hama;H. Fujimoto;H. Takuda
采用各种晶体塑性模型，包括唯象和位错硬化模型，预测了钢板塑性轮廓的演变。塑性轮廓的演变是不同的，这取决于模型，但没有一个模型可以预测在实验中观察到的微分加工硬化行为。模拟结果表明，在不同的应力比下，{110}和{112}滑移系的活动性有明显的差异，表明{110}和{112}滑移系的强度差异对等高线的演化起着重要的作用。
Evolution of plastic contour of a steel sheet was predicted using various crystal plasticity models, including a phenomenological and dislocation-based hardening model. The evolution of plastic contour was different depending on the model, but none of the models used could predict differential work-hardening behavior observed in experiments. The simulation results showed that the {110} and {112} slip activities were significantly different depending on the stress ratio, suggesting that the differences in the strengths between the {110} and {112} slip systems would play an important role in the evolution of the contour.