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.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2000年第1期73-77,共5页
Journal of Hefei University of Technology：Natural Science
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
fiber reinforced concrete
the damage evolution law
the critical damage energy release rate
