摘要
本文从压剪缝面的基本力学关系和裂面传剪,裂面传压效应的实验工作入手,指出压剪条件下缝面的正应力对裂缝状态和扩展具有重要的影响.提出了对压剪裂缝四种状态下考虑缝面正应力影响的计算公式,并将计算结果和电测、激光散斑的同步实验进行了验证.
To begin with the basic mechanical properties of press-shear crack surface and the laboratory work on the effect of transmitting shear and press, this paper points out firstly that the normal stress of crack surface affects greatly the cracking state and its expansion under press-shear condition;and secondly,it poses a computing formula considering the effect of crack surface normal stress under four states of press-shear crack;and finally,it compares the computed results with the results from electric measurement and laser spec- kle test.
出处
《华侨大学学报（自然科学版）》
CAS
1990年第4期382-388,共7页
Journal of Huaqiao University(Natural Science)
关键词
裂缝
压剪
正应力
剪应力
散斑实验
pressure-shear crack
normal stress
shear stress affact
speckle test
