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1-7 of 7
Keywords: damage evolution
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Proceedings Papers
Split Hopkinson Pressure Bar Test and Cell Model of the Damage Threshold of Siltstone
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Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-575
... is 0.119, and the damage threshold during failure is 0.4, which is consistent with the SHPB test results. Thus, the cellular model established based on the renormalization group method can be used to study the damage evolution of siltstone. 1. Introduction Currently, many damage models...
Proceedings Papers
Development and Validation of Numerical Model for Delayed Failure of Rocks Based on Damage Mechanics
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Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-108
... isrm international symposium time-dependent behavior Upstream Oil & Gas damage mechanics strength model hydraulic fracturing numerical model damage evolution crack growth strength ratio 10th Asian Rock Mechanics Symposium (ARMS10), Singapore The 2018 ISRM International Symposium ©...
Proceedings Papers
Study of the Strength Criterion on Rock Materials Considering Damage Evolution
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Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-215
... field. Based on the connection between micro-structures with damage evolution of material, we established stress function which considering the damage evolution of material. Then apply the modified stress function to the existing failure criterion and obtain the strength criterion that considers...
Proceedings Papers
Mechanical Properties and Damage Evolution of Specimens Containing Single Cracks: An Experimental Study Based on SEM Method
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Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-211
... Abstract Experimental uniaxial compression loading tests and scanning electron microscope (SEM) tests are carried out on rock-like specimens containing single pre-existing cracks to study the mechanical properties and microscopic damage evolution. The present study has distinguished tensile...
Proceedings Papers
Modeling Soft Rock Material by Using A Coupled Elasto-plastic Damage Model
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Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-045
... in the model to separate brittle and ductile deformation regions. It also represents the residual state of porous rock which is approached at large shear deformation at constant deviatoric stress. The continuum damage evolution model is established in a general irrecoverable thermodynamics framework...
Proceedings Papers
A New Model for Rock Blasting Damage in Tension Through Two-Scale Framework Analysis
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Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-087
... orientation on damage distribution around the blasthole have been determined. damage evolution new model october 2014 hydraulic fracturing orientation Keita Upstream Oil & Gas asian rock mechanics symposium arms8 borehole charge microstructual size propagation energy release rate...
Proceedings Papers
Real-time CT Monitoring of Meso-damage Propagation Law of Sandstone 1
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Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-010
..., the initial damage effect factor and the c1ose effectcoefficient are introduced, and a new damage variable based on the CT values is defined. Based on the results of the CT testing of meso-damage evolution law of rock, the stress threshold value of meso-damage of rock is given, and the stress-strain...
