摘要
从不可逆热力学出发，讨论了现行作法中将损伤演化与塑性变形完全耦合，以及引入后继损伤加载面的不妥之处．为解决这一问题，提出了与塑性流动势无关的损伤流动势，并籍以得到广义损伤矢量的演化方向，而损伤流动因子则由伤演许可域与能量方程所确定．
Based on irreversible thermodynamics,plastic deformation totally coupled damage and the subsequent damage load surface,which are used in damage modelling by some authors currently,are found inappropriate.A damage potential is introduced and employed to determine the evolution direction of the generalized damage vector;the related damage flow mutiplier is derived by using the damage permissible domain and the energy equation.
出处
《河南大学学报（自然科学版）》
CAS
1997年第3期15-19,共5页
Journal of Henan University:Natural Science
关键词
损伤力学
损伤演化
不可逆热力学
damage mechanics
damage evolution
irreversible thermodynamics
