Prediction of Stress-Strain Response under General Multiaxial Loading
Prediction of Stress-Strain Response under General Multiaxial Loading
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DOI：
10.1520/stp28889s
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
Y. Garud
中科院分区：
文献类型：
--
作者：
Y. Garud
本文论述了一个数学模型，能够预测率无关的弹塑性应力应变响应的材料受到一般多轴载荷的验证。该模型是基于增量塑性的概念和一个新的硬化规则。它的应用程序来预测稳态响应的情况下，组合循环异相（非比例）轴向和扭转载荷。预测的形式，显示轴向和扭转应力应变响应的计算机生成的磁滞回线。预测的响应被证明是在良好的协议与现有的测试结果对两种金属。能力，局限性和扩展的模型进行了简要讨论，在观察到的和预测的反应。
This paper deals with verification of a mathematical model capable of predicting rate-independent elastic-plastic stress-strain response of materials subjected to general multiaxial loading. The model is based on the concepts of incremental plasticity and a new hardening rule. Its application to predict steady response is illustrated for the case of combined cyclic out-of-phase (nonproportional) axial and torsional loading. The predictions are presented in the form of computer-generated hysteresis loops showing axial and torsional stress-strain response. The predicted response is shown to be in good agreement with available test results on two metals. Capabilities, limitations, and extensions of the model are briefly discussed in relation to the observed and predicted response.