纤维混凝土的损伤理论  

On the application of continuum damage theory to fiber reinforced contrete

作　　者：蔡四维[1] 蔡敏[1] 

机构地区：[1]合肥工业大学土木建筑工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2000年第1期73-77,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：根据材料的物理化学和结构特征 ,阐述混凝土类材料的脆性损伤破坏特性。评述近代用断裂力学方法分析这类材料破坏的有关主要研究工作 ,指出应用损伤力学理论来分析混凝土类材料将是最合理、有效的方法。文章提出用于纤维混凝土的损伤演化律 ,同时指出关于材料损伤能量释放率的研究方向 ,可供对纤维混凝土材料损伤分析研究参考。In this paper the brittleness of cementitious composites is discussed. After reviewing the research works using LEFM to concrete,it is recognized that the Theory of Damage is rather reasonable to be used in the case of cementitious composites.And the damage evolution law of fiber reinforced concrete is derived. How to find the critical damage energy release rate is informed. The application of damage mechanics to the macro cracked structural members is explored.

关 键 词：纤维混凝土 脆性损伤 断裂力学 损伤能量释放率 损伤力学 

分 类 号：TU528.572[建筑科学—建筑技术科学]