| 1. | Elliptical subsequent yield function and its application to elastic - plastic finite element analysis
一种后继屈服函数及其在弹塑性有限元中的应用 |
| 2. | Usually yield function is introduced to describe the plastic deformation , however , a new damage function is proposed here to describe the additional deformation due to the damage of soil structure
塑性变形常用屈服函数描述，损伤变形则可以引入一种类似的损伤函数加以描述。 |
| 3. | 5 . a iterative - linear complementarity method for elasto - plastic problem was proposed , which approximates nonlinear yield function well and enlarges the utilization of lcm . 6
提出了一种求解弹塑性问题的迭代线性互补方法，可以更好地解决非线性屈服函数的近似问题，进一步拓展了线性互补方法的求解能力。 |
| 4. | Based on a yield function put forward by zhou weixian , pure shear yield curves can be obtained indirectly using six simple compression experiments , when pure shear experiments can ' t be finished
基于周维贤提出的屈服函数，针对无法进行纯剪切试验的情况，可以采用六个简单压缩试验间接地确定纯剪切屈服曲线。 |
| 5. | 3 . the principle of virtual work with complementarity and the the principle of energy with complementarity for elasto - plastic problem were educed and a fe - linear complementarity model was proposed with the linearization of yield function
推导了弹塑性问题的互补虚功原理与互补能量原理；利用了taylor级数展开对屈服函数作线性化处理，建立了弹塑性问题的有限元线性互补模型。 |
| 6. | Regard yield function as temperature and plastic strain ' s function , the deflection of simply - supported slabs under fire are analyses by coordinate finite element . the computing results show in good agreement with the results of tests . it is demonstrated that the method and the computer programs are reliable
理论分析主要是采用二维有限元分析了构件截面温度场；采用拖带坐标描述法的有限元格式，在考虑了在时间步内屈服面是温度和塑性的函数基础上，分析了简支板在火灾作用下的变形规律，所得结果与试验吻合较好。 |
| 7. | In order to fully refect the geo - tech basic mechanics behaviors and to rationally explain the strain localization , this paper establishes the theory framework of gradient - dependent plastic model based on the theory framework of gradient - dependent plastic mechanics and in considering the plastic strain ' s gradient - dependence in double yield function , offers a kind of possible concrete pattern of the generalized plastic gradient model and analyzes each parameter of the model , particularly with the physical sense of " localized parameters " and the elements producing possible effect upon the model
为了较全面地反映岩土的基本力学性质，同时合理解释应变局部化现象，本文基于广义塑性力学的理论框架，在双重屈服函数中考虑了塑性应变的梯度依赖，建立了广义塑性梯度模型的理论框架，并给出了广义塑性梯度模型的一种可能的具体形式，分析了该模型的各个模型参数，尤其是其中的“局部化参数”的物理意义和可能对其产生影响的因素。 |
