title: Study on the constitutive model for jointed rock mass.
abstract: A new elasto-plastic constitutive model for jointed rock mass, which can consider the persistence ratio in different visual angle and anisotropic increase of plastic strain, is proposed. The proposed the yield strength criterion, which is anisotropic, is not only related to friction angle and cohesion of jointed rock masses at the visual angle but also related to the intersection angle between the visual angle and the directions of the principal stresses. Some numerical examples are given to analyze and verify the proposed constitutive model. The results show the proposed constitutive model has high precision to calculate displacement, stress and plastic strain and can be applied in engineering analysis.
authors.affiliation: School of Civil and Hydraulic Eng., Dalian University of Technology, Dalian, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xu
authors.affiliation: State Key Lab.of Coastal and Offshore Eng., Dalian University of Technology, Dalian, China; School of Civil and Hydraulic Eng., Dalian University of Technology, Dalian, China.
authors.forename: Jianyun
authors.initials: J
authors.lastname: Chen
authors.affiliation: School of Civil and Hydraulic Eng., Dalian University of Technology, Dalian, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Civil and Hydraulic Eng., Dalian University of Technology, Dalian, China.
authors.forename: Chunfeng
authors.initials: C
authors.lastname: Zhao
authors.affiliation: School of Civil and Hydraulic Eng., Dalian University of Technology, Dalian, China.
authors.forename: Chenyang
authors.initials: C
authors.lastname: Yuan
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D008962:Models, Theoretical