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Yadong Zheng, Lianying Zhang, Peng Wu, Xiaoqian Guo, Ming Li and Fuqiang Zhu
The physical and mechanical properties of rocks change significantly after being subjected to high temperatures, which poses safety hazards to underground projects such as coal underground gasification. In order to investigate the effect of temperature o...
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Yangbing Cao, Qiang Yan, Sui Zhang and Fuming Cai
Shale is a common rock type that is associated with underground engineering projects, and several important factors, such as bedding structure, confining pressure, and the loading and unloading path, significantly influence the anisotropy of shale. Triax...
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Yujing Jiang, Xinpeng Li, Changsheng Wang, Hengjie Luan, Sunhao Zhang, Gang Wang and Pu Wang
Understanding the asperity damage behaviors of joints during shearing is critical for evaluating the stability of deep underground engineering structures. In this paper, we prepared plaster joints and used them for direct shear tests under different norm...
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James Marcus Griffin, Steven Jones, Bama Perumal and Carl Perrin
Welding inspection is a critical process that can be severely time-consuming, resulting in productivity delays, especially when destructive or invasive processes are required. This paper defines the novel approach to investigate the physical correlation ...
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Jun Zhang, Shengdong Liu, Cai Yang and Juanjuan Li
The deformation and fracturing of coal rock is a crucial part of coal and rock dynamic disasters and is accompanied by variations in the electrical field of the rock. In this study, the self-potential characteristics of coal rock were measured to dynamic...
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Tao Wang, Weiwei Ye, Liyuan Liu, Aiguo Li, Naisheng Jiang, Le Zhang and Sitao Zhu
To investigate the impact of crack inclination angle on the tensile strength and characteristics of splitting failure in rock, split tests were conducted on fine-grained sandstone with pre-existing cracks under different crack inclination angle condition...
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Ci-Rong Huang and Ming-Chyuan Lu
In the development of a tool wear monitoring system in milling, the complex cutting path always brings challenges to the system?s reliability in the production line. The cutting path effect on the acoustic emission (AE) and vibration signals during the m...
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Katsuya Nakamura, Yoshikazu Kobayashi, Kenichi Oda and Satoshi Shigemura
Acoustic emission (AE) source localization has been used to visualize progress failures generated in a wide variety of materials. In the conventional approaches, AE source localization algorithms assume that the AE signal is propagated as a straight line...
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Bing Sun, Haowei Yang, Junwei Fan, Xiling Liu and Sheng Zeng
In order to study the deformation and failure characteristics of rocks under different cyclic loading and unloading paths, three stress path tests were conducted, and acoustic emission (AE) monitoring was conducted simultaneously. The mechanical characte...
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Timothy Devenport, Bernard Rolfe, Michael Pereira and James M. Griffin
In this paper, the applicability of acoustic emission (AE) measurement of galling wear in sheet metal forming (SMF) is investigated.
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