摘要
通过实验力学方法研究了几种典型组合裂纹非共面破裂特征．实验结果表明，在双轴加载条件下，脆性材料内部的初始不闭合裂纹在受力闭合之前出现新裂纹，扩展裂纹中不仅有张性裂纹，而且有剪切裂纹，部分甚至还出现逆向剪切裂纹．对单轴加载和双轴加载两种条件下裂纹的破坏规律作了比较．
This paper studies the non-coplanery rupture characteristics of a set of typical complex cracks in the seismological physics by means of experimental mechanics.Crack's dynamic feature is clearly shown.Results show that,new cracks in the brittle materials start to grow before the closure of the preexisting cracks which is under biaxial loading condition.These new cracks are composed of not only tensile cracks but also shearing ones,in some cases the backing-up shearing cracks can also be seen.Different rupture laws between the uni-axial and the bi-axial loading conditions have also been carefully studied.
出处
《地球物理学报》
SCIE
EI
CSCD
北大核心
1995年第5期683-687,共5页
Chinese Journal of Geophysics
基金
地震科学联合基金
