摘要
本文讨论了连续损伤力学基础的缺陷,从微裂纹随机演化出发给损伤概念作出新的普适的统计定义,导出了损伤断裂几率的动力学方程,使损伤、断裂、统计、微观机理及宏观特性五者有机地相结合,从而有可能形成一个统一的损伤断裂微观统计理论。
The shortcomings of damage mechanics foundation are discussed. The new universal statistical damage concept is defined from stochastic evloution of microcracks (microvoi-ds) The kinetic equation of damage-fracture probability is derived. The damage, fracture, statistics, microscopic mechanism and macroscopic properties are connected organically with one another, and the unified microscopic statistical theory of damage fracture is constructed.
出处
《力学学报》
EI
CSCD
北大核心
1991年第1期123-127,共5页
Chinese Journal of Theoretical and Applied Mechanics
关键词
损伤
断裂
微观机理
几率
微裂纹
microscopic mechanism, microcrack evolution equation, damage-fracture probability
