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Experimental and numerical investigation on the dynamic failure envelope and cracking mechanism of precompressed rock under compression-shear loads

Abstract:

The complex response of underground geomaterials subjected to dynamic disturbance arises from the microstructure redistribution under high in- situ stress and the resulting fracture behaviors at multiaxial stress states. Inclined specimens were employed in an axially constrained split Hopkinson pressure bar (SHPB) system to achieve a combination of compression-shear stress states and static-dynamic loads. The loading rate under investigation ranged from 500 to 4,000 GPa/s, along with the axia...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1061/(ASCE)GM.1943-5622.0002196

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Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
ORCID:
0000-0002-3824-3679
Publisher:
American Society of Civil Engineers
Journal:
International Journal of Geomechanics More from this journal
Volume:
21
Issue:
11
Article number:
04021208
Publication date:
2021-08-31
Acceptance date:
2021-07-15
DOI:
EISSN:
1943-5622
ISSN:
1532-3641
Language:
English
Keywords:
Pubs id:
1194292
Local pid:
pubs:1194292
Deposit date:
2021-09-29

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