摘要
以混凝土单轴拉压损伤为基础,给出了单元弹性损伤本构关系,分析了裂纹尖端损伤微裂区尺寸,定义了有效应力强度因子,给出了I型裂纹损伤断裂判据。
Based on the study of damage mechanism of concrete material subjected to uniaxial tensile and compressive stress , sets up elastic constitutive relation of damage for concrete element. Mesoscopic damage size on the top of crack is analysed, the effective stress strength factor is defined, the mode I crack damage fracture criteria is presented.
出处
《安徽工业大学学报（自然科学版）》
CAS
2005年第4期400-403,共4页
Journal of Anhui University of Technology（Natural Science）
关键词
混凝土
损伤
本构关系
断裂判据
有效应力强度因子
concrete
damage
constitutive relationship
fracture criteria
effect stress strength factor
