论文部分内容阅读
四、弹塑性应力应变模型十几年来学者们建议采用的应力～应变数学模型有许多种.在弹性模型方面最常使用的模型有两种.第一种是以E(杨氏模量)及v(泊桑比)两种弹性常数表达的称E～v弹性模型.第二种是以K(体积变形模量)及G(剪切模量)两个弹性常数表达的称K～G弹性模型.这两种弹性模型将在本章中介绍.另外一种是南科所采用的非线性的变弹性体模型,它
IV. Elastic-plastic stress-strain model There are many kinds of stress-strain mathematics models suggested by scholars for more than ten years. There are two models most commonly used in the elastic model. The first one is based on E (Young’s modulus) and v (Poisengbi) Two elastic constants to express the E ~ v elastic model. The second is called K (G modulus) and G (Shear Modulus) two elastic constants expressed K ~ G elasticity Models. These two elastic models will be introduced in this chapter. The other is the nonlinear variable elastic model used by Nanke.