contributor author | Chong Shi | |
contributor author | Junxiong Yang | |
contributor author | Weijiang Chu | |
contributor author | Hui Tang | |
contributor author | Yiping Zhang | |
date accessioned | 2022-02-01T00:26:33Z | |
date available | 2022-02-01T00:26:33Z | |
date issued | 8/1/2021 | |
identifier other | %28ASCE%29GM.1943-5622.0002106.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4271442 | |
description abstract | Various mechanical responses of rocks under a complex stress state have attracted the attention of engineers. A hollow cylinder torsional apparatus (HCA) was constructed using the discrete element method (DEM). A series of conventional triaxial compression tests under different confining pressures and a complex stress path test with torsion were conducted. The numerical results are consistent with laboratory and theoretical findings, which indicates that the microscopic parameters of the DEM sandstone specimens were correct and reasonable. Based on the HCA DEM specimen, the macro–micromechanical response of sandstone specimens under four typical unloading stress paths were studied, and variations in the strain energy density, strain energy, and dissipated energy of sandstone specimens were obtained. These results could provide a reference for the study of the mechanical properties of unloaded sandstone in geotechnical engineering. | |
publisher | ASCE | |
title | Macro- and Micromechanical Behaviors and Energy Variation of Sandstone under Different Unloading Stress Paths with DEM | |
type | Journal Paper | |
journal volume | 21 | |
journal issue | 8 | |
journal title | International Journal of Geomechanics | |
identifier doi | 10.1061/(ASCE)GM.1943-5622.0002106 | |
journal fristpage | 04021127-1 | |
journal lastpage | 04021127-14 | |
page | 14 | |
tree | International Journal of Geomechanics:;2021:;Volume ( 021 ):;issue: 008 | |
contenttype | Fulltext | |