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Effect of thermal–mechanical damage on deformation behaviours and fracture characteristics of sandstone under cyclic loading

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成果类型:
期刊论文
作者:
Yang, Peng;Zhang, Youliang;Zeng, Sheng;Cui, Jie;Sun, Bing
通讯作者:
Sun, B
作者机构:
[Zhang, Youliang; Yang, Peng; Cui, Jie] Hainan Univ, Sch Civil & Architectural Engn, Haikou 570228, Peoples R China.
[Sun, Bing; Yang, Peng] Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
[Zeng, Sheng] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.
通讯机构:
[Sun, B ] U
Univ South China, Sch Civil Engn, Hengyang 421001, Peoples R China.
语种:
英文
关键词:
Cyclic loading;Thermal damage;Acoustic emission;Fracture characteristics;Numerical simulation
期刊:
Engineering Fracture Mechanics
ISSN:
0013-7944
年:
2025
卷:
320
页码:
111091
基金类别:
CRediT authorship contribution statement Peng Yang: Writing – review & editing, Writing – original draft, Software, Investigation, Data curation. Youliang Zhang: Writing – review & editing, Supervision, Resources, acquisition. Sheng Zeng: Writing – review & editing, Investigation. Jie Cui: Writing – review & editing, Resources, acquisition. Bing Sun: Writing – review & editing, Supervision, Software, Resources, Methodology, Conceptualization.
机构署名:
本校为通讯机构
院系归属:
土木工程学院
摘要:
Thermal and mechanical damage tests and uniaxial cyclic loading–unloading tests are conducted to investigate the effect of damage degree and temperature on the mechanical behaviour of sandstone under cyclic loading. The failure characteristics are analysed via acoustic emission (AE) monitoring and particle-flow code (PFC) simulations. The results indicate that the rock mass strength first increases and then decreases. The peak strain of samples increases with temperature, thus enhancing their ductility. The residual strain decreases gradually ...

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