虚裂纹模型在分析平面裂缝扩展问题中的应用  

Application of Fictitious Crack Model in Analysis of Plane Crack Growth

作　　者：尹双增 翟奇愚[2] 

机构地区：[1]海南大学 [2]华北水利水电学院

出　　处：《海南大学学报（自然科学版）》1992年第2期1-11,共11页Natural Science Journal of Hainan University

摘　　要：本文利用虚裂纹模型原理导出了混凝土三点弯曲梁尺寸和材料参数的关系,并据此提出了分段拟合实测ρ～δ曲线确定双线性软化曲线的方法。A relation between the size of three-point bending concrete beam and the parameter of materials is derived using the fictitious crack model.From this,a methed for determining the bilinear softening curve by sectionally fitting measured P—δ curve is presented.

关 键 词：虚裂纹模型 裂疑扩展 混凝土 

分 类 号：TU528.01[建筑科学—建筑技术科学]