摘要
在１０种岩石单轴拉伸试验的基础上，分析了岩石在拉应力作用下非弹性应变随应力增加而增加的规律性，提出了能够表现岩石受拉变形破坏全过程的非线性粘弹性本构方程。通过对拉应力作用下岩石本构模型与裂缝扩展模型的比较，讨论了岩石在受拉过程中非弹性应变增加与裂缝扩展之间的关联，发现了两者时间效应特征的相似规律性。
In this study, on the basis of uniaxial tensile test of ten kinds of rock,the increase of inelastic strain with stress has been investigated.The non-linear visco-elastic model was proposed which could be used to explain failure behaviour of uniaxial tension of rock. And by comparison of uniaxial tension model and crack extension model, the relationship between the increase of inelastic strain and crack extension was discussed.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1998年第6期5-8,共4页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金
