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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >A COROTATIONAL ELASTOPLASTIC FORMULATION WITH SUBLOADING SURFACE MODEL FOR HARDENING MATERIALS
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A COROTATIONAL ELASTOPLASTIC FORMULATION WITH SUBLOADING SURFACE MODEL FOR HARDENING MATERIALS

机译：带有加载表面模型的材料硬化材料的弹塑性配方。

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摘要

In this paper a corotational constitutive model for the large elastoplastic deformation of hardening materials using subloading surface model is formulated. This formulation is obtained by refining the large deformation theory of Naghdabadi and Saidi (2002) adopting the corotational logarithmic (Hencky) strain rate tensor and incorporating it into the subloading surface model of Hashiguchi (1980, 2003) falling within the framework of the unconventional plasticity. As an application of the proposed constitutive model, the large Elastoplastic deformation of simple shear example has been solved and the results have been compared with classical elasto-plastic model using the Hencky strain tensor. Also the effect of the choice of corotational rates on stress components has been studied.
机译：本文建立了基于亚加载表面模型的硬化材料大弹塑性变形的本构模型。该公式是通过对纳格达巴迪（Naghdabadi）和赛迪（Saidi）（2002）的大变形理论进行细化而得到的，它采用了对数对数（Hencky）应变率张量并将其纳入非常规可塑性框架内的Hashiguchi（1980，2003）的子加载表面模型中。 。作为提出的本构模型的一个应用，解决了简单剪切实例的大弹塑性变形，并将结果与​​使用Hencky应变张量的经典弹塑性模型进行了比较。还研究了选择电化率对应力分量的影响。

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