Guo Wenzhang, Feng Shunshan, Wang Haifu. Analysis of the Elastic Plastic Dynamic Finite Element on a Jointed Rock Mass[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(2): 138-143.
Citation:
Guo Wenzhang, Feng Shunshan, Wang Haifu. Analysis of the Elastic Plastic Dynamic Finite Element on a Jointed Rock Mass[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(2): 138-143.
Guo Wenzhang, Feng Shunshan, Wang Haifu. Analysis of the Elastic Plastic Dynamic Finite Element on a Jointed Rock Mass[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(2): 138-143.
Citation:
Guo Wenzhang, Feng Shunshan, Wang Haifu. Analysis of the Elastic Plastic Dynamic Finite Element on a Jointed Rock Mass[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(2): 138-143.
Aim To study the elastic plastic dynamical constitutive relations about a jointed rock mass under explosion load and its computer simulation. Methods Stress history is taken into account and stresses will follow changes in time during a period of explosion load. According to the principle of static force balance, the corresponding nodal concentrated force is calculated and the nodal displacement is counted. The elastic plastic dynamic finite element equations are thus obtained. Results A finite element method is given for a jointed rock mass under explosion load. Conclusion The problem of large plastic deformation for jointed rock mass on blasting was efficiently resolved through dynamic finite element analysis and the range of damages by blasting simulated, and this pushes forward the problem to engineering practice.
Swoboda G, Zenz G. Application of the‘decoupled finite element analysis’in tunneling. In : Ran-dolph M F,ed. Proceeding of the 6th ICONMIG. Austria: University of Innsbruck Press , 1988.1465 - 1472.
[2]
Li Ning. Wave propagation problems in the jointed rock mass. Xi’an: Press of Northwest Universi2ty of Technology, 1993