Study of deformation and fracture behavior of shale by a novel anisotropic regular lattice spring model
- 1School of Civil Engineering, Chongqing University, Chongqing, China (xieqiang2000@163.com)
- 2School of Civil Engineering, Chongqing University, Chongqing, China (wcsun@cqu.edu.cn)
- 3School of Transportation, Southeast University, Nanjing, China (wukai2018@seu.edu.cn)
- 4School of Civil Engineering, Chongqing University, Chongqing, China (icooolyes@qq.com)
- 5College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing, China (fmsx2000@163.com)
- 6Department of Mathematics, Politecnico di Milano, Milan, Italy (alessio.fumagalli@polimi.it)
- 7School of Civil Engineering and Architecture, Chongqing University of Science & Technology, Chongqing, China (banyuxin@163.com)
This research aims to study the deformation and fracture behavior of shale by a novel anisotropic regular lattice spring model (ARLSM). The novel ARLSM applies the normal and tangential coupling spring to release the Poisson's ratio limitation in the traditional regular lattice spring model. Meanwhile, a nonlinear strength criterion is introduced into ARLSM to simulate the fracture failure of shale. Two benchmark problems are tested to implement the research. The study shows that ARLSM has larger range of Poisson's ratio and better effects comparing with the existing anisotropic lattice spring model. Moreover, ARLSM can accurately predict the deformation and fracture behavior of shale under different conditions.
How to cite: Xie, Q., Sun, W., Wu, K., Cao, Z., Fu, X., Fumagalli, A., and Ban, Y.: Study of deformation and fracture behavior of shale by a novel anisotropic regular lattice spring model, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-6565, https://doi.org/10.5194/egusphere-egu23-6565, 2023.
