摘要
把损伤理论引入到混凝土的断裂分析中去 ,推导出了混凝土 型裂缝在静动力荷载下缝端附近损伤长度的计算公式 ,提出了基于允许尺度概念的损伤断裂准则 ;用圆柱体试件测定了混凝土断裂韧度 K c。
The damage fracture criterion of mode Ⅲ crack of concrete is studied. The damage mechanics combined with the fracture mechanics is used to calculate the damage fields near the tip of crack with static and dynamic loading. The formula of Allowed Damage Length of mode Ⅲ crack is obtained. The criterion is developed by means of damage length, so that the damage and fracture could be coupled in same criterion. The fracture toughness K Ⅲ c of concrete was also obtained by using a pure twist.
出处
《西安公路交通大学学报》
CSCD
北大核心
2000年第2期23-26,共4页
Journal of Xi'an Highway University
基金
山东省自然科学基金资助项目 !( Q99F0 6 )
高等学校博士学科点专项科研基金项目资助课题
