摘要
利用引入不可逆热力学中反耗散概念和适当构造Ｈｅｌｍｈｏｌｔｚ自由能表达式，推导了一单轴粘塑性损伤本构模型。经过讨论和试算，表明该模型能够描述蠕变的初始、稳定和加速三个阶段。
In this paper a viscoplastic constitutive model with damage is obtained, on the basis of the conception of anti-dissipation which authors have advanced, and by means of constructing the appropriate form of Helmholtz free energy density. The discussing and computing of the model show that it can describe the deformations of creep in initial, steady and accelerative periods.
出处
《哈尔滨建筑大学学报》
1997年第1期9-14,共6页
Journal of Harbin University of Civil Engineering and Architecture
基金
中国博士后基金
关键词
本构关系
蠕变
损伤
加速阶段
塑性力学
constitutive
creep
injuries
accelerative period
multiple yield surface.
