A STATISTICAL CONSTITUTIVE RELATION FOR ROCK MASS AND ITS APPLICATION
BAI Jinze DING Hua LIANG Naigang (Division of Engineering, Institute of Mechanics, The Chinese Academy of Sciences, Beijing 100080, China)
Considering the heterogeneous property of rock mass, a statistical constitutive model is developed and is implemented in LS-DYNA by using the user denned material subroutine. In the constitutive model of the rock mass, a two parameter Weibull's distribution is used to simulate the statistical properties of the tangential modulus and the strength of the rock mass. The rationality of the model is demonstrated by a numerical test.
【CateGory Index】： TU452