摘要
运用RFPA2D软件对岩石的单轴拉伸强度试验、不同内径的圆环试样的劈裂试验进行了模拟。比较模拟结果 ,重点研究了圆环试样内径对试件抗拉强度的影响 ,确定了最接近单轴拉伸试验结果内径的范围 ,利用回归分析确定了内径与试样抗拉强度之间的关系。
The uniaxial test and Brazilian test have been successfully simulated by using a numerical code named RFPA 2D(abbreviated from Rock Failure Pro cess Analysis).Splitting tensile strengths of ring specimens with different int ernal radius are calculated and compared with others.The influence of internal r adius of ring specimen on tensile strength is studied,the best ring specimen for testing tensile strength is determined and the relation between internal radius and tensile strength is drawn out by statistical method.
出处
《岩土工程技术》
2004年第6期286-290,共5页
Geotechnical Engineering Technique
基金
国家自然科学基金 (5 0 374 0 2 0
5 0 1340 4 0
5 0 174 0 13)
关键词
岩石
抗拉强度
圆环内径
数值模拟
rock
tensile strength
internal radius
numerica l simulation
