THE ORDER OF A DAMAGE TENSOR

In this paper,the stress deformation constitutive relations for continua are discussedand a stress deformation constitutive relation expressed by functional tensorial expressionis found When we study the anisotropic damage of anisotropic materials either from amacroscopic continuum mechanics model or from a micro-defect model,there exists a limitto the order of a damage tensor,and the condition under which the damage variable,may bedescribed by a tensor lower than those of the highest order is found.     

关于损伤张量的阶次

本文首先讨论了较为广泛的连续介质材料的应力变形本构关系,得到了通常以泛函表示的应力变形本构关系的张量表达式.以此为基础,研究了各向异性材料各向异性损伤时,无论从连续介质力学模型出发还是从缺陷模型出发,描述损伤的张量都存在最高阶次的限制;指出了在什么条件下,损伤变量可用低于最高阶次的张量来描述.     

陶瓷/金属功能梯度材料圆筒的热应力分析

对金属-功能梯度材料-陶瓷的三层组合圆筒进行了热应力分析,导出了定常温度分布及热应力分布的计算表达式,并就ZrO₂/Ti-6Al-4V梯度材料的热应力进行了计算和讨论.     

Thermal stresses analysis of ceramic/metal functionally gradient material cylinder

ＩｎｔｒｏｄｕｃｔｉｏｎＣｅｒａｍｉｃ／ｍｅｔａｌｆｕｎｃｔｉｏｎａｌｙｇｒａｄｉｅｎｔｍａｔｅｒｉａｌ（ＦＧＭ）ｈａｓｇｒａｄｉｅｎｔｉｎｇｒｅｄｉｅｎｔｄｉｓｔｒｉｂｕｔｉｏｎ,ｓｏｉｔｓｐｒｏｐｅｒｔｉｅｓｏｆｔｈｅｈｅａｔｔｒａｎｓｆｅｒａｎ...     

The order of a damage tensor

In this paper, the stress deformation constitutive relations for continua are discussed and a stress deformation constitutive relation expressed by functional tensorial expression is found. When we study the anisotropic damage of anisotropic materials either from a macroscopic continuum mechanics model or from a microdefect model, there exists a limit to the order of a damage tensor, and the condition under which the damage variable may be described by a tensor lower than those of the highest order is found.