Experimental and numerical investigation on the tensile behaviour of rocks using the Brazilian disc method

被引：0
作者：
Chen, Yulong [1 ,2 ]
Zhang, Xuwen [2 ]
Yuan, Honghui [1 ]
Zhang, Junwen [2 ]
机构：
[1] China Coal Res Inst, Beijing 100013, Peoples R China
[2] China Univ Min & Technol Beijing, Beijing 100083, Peoples R China
来源：
JOURNAL OF APPLIED GEOPHYSICS | 2025年 / 233卷
基金：
中国国家自然科学基金;
关键词：
EMR; AE; Brazilian disc; Cracking; Fractal dimension; B-value;
D O I：
10.1016/j.jappgeo.2025.105629
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Characterizing engineering properties of rock especially associated with tension is crucial for stability assessment of rock structures. This study integrates physical and numerical experiments to investigate the electromagnetic radiation (EMR) and acoustic emission (AE) responses of sandstone under Brazilian disc testing. During the Brazilian splitting process, the EMR and AE responses reflect well the cracking evolution of the disc sandstone specimen. The cracking evolution process and failure mechanism are vividly illustrated. When approaching the peak stress, massive EMR and AE activities occur abruptly. Importantly, the fractal dimension and b-value of EMR and AE switch from increase to decrease once the failure initiates. Such significant decrease in the fractal dimension and b-value of EMR and AE upon failure initiation could be applied to identify the rock failure initiation.
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页数：9
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共 17 条
[1]   Creep behavior and permeability evolution of coal pillar dam for underground water reservoir [J].
Chen, Yulong ;
Hao, Xianjie ;
Xue, Dongjie ;
Li, Zhe ;
Ma, Xiaoran .
INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY, 2023, 10 (01)
[2]   Verification of the Kaiser Effect in Rocks under Tensile Stress: Experiment Using the Brazilian Test [J].
Chen, Yulong ;
Irfan, Muhammad ;
Song, Chenpeng .
INTERNATIONAL JOURNAL OF GEOMECHANICS, 2018, 18 (07)
[3]   Effect of Water on the Deformation and Failure of Rock in Uniaxial Tension [J].
Hashiba, K. ;
Fukui, K. .
ROCK MECHANICS AND ROCK ENGINEERING, 2015, 48 (05) :1751-1761
[4]   Deep learning approach to coal and gas outburst recognition employing modified AE and EMR signal from empirical mode decomposition and time-frequency analysis [J].
Li, Bing ;
Wang, Enyuan ;
Shang, Zheng ;
Li, Zhonghui ;
Li, Baolin ;
Liu, Xiaofei ;
Wang, Hao ;
Niu, Yue ;
Wu, Qian ;
Song, Yue .
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 2021, 90
[5]   Experimental and numerical investigation on the tensile fatigue properties of rocks using the cyclic flattened Brazilian disc method [J].
Liu, Yi ;
Dai, Feng ;
Xu, Nuwen ;
Zhao, Tao ;
Feng, Peng .
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2018, 105 :68-82
[6]   Study on the Nonlinear Characteristics of EMR and AE during Coal Splitting Tests [J].
Qiu, Liming ;
Zhu, Yi ;
Song, Dazhao ;
He, Xueqiu ;
Wang, Weixiang ;
Liu, Yang ;
Xiao, Yuzhe ;
Wei, Menghan ;
Yin, Shan ;
Liu, Qiang .
MINERALS, 2022, 12 (02)
[7]   Mechanical behavior and AE and EMR characteristics of natural and saturated coal samples in the indirect tensile process [J].
Shen, Rongxi ;
Li, Hongru ;
Wang, Enyuan ;
Li, Dexing ;
Hou, Zhenhai ;
Zhang, Xuan ;
Han, Xu .
JOURNAL OF GEOPHYSICS AND ENGINEERING, 2019, 16 (04) :753-763
[8]   Effect of Rock Properties on Electromagnetic Radiation Characteristics Generated by Rock Fracture During Uniaxial Compression [J].
Wei, Menghan ;
Song, Dazhao ;
He, Xueqiu ;
Li, Zhenlei ;
Qiu, Liming ;
Lou, Quan .
ROCK MECHANICS AND ROCK ENGINEERING, 2020, 53 (11) :5223-5238
[9]   Structural health monitoring of building rock based on stress drop and acoustic-electric energy release [J].
Yin, Shan ;
Song, Dazhao ;
He, Xueqiu ;
Lou, Quan ;
Qiu, Liming ;
Li, Zhenlei ;
Peng, Chen ;
Li, Jie ;
Liu, Yang .
STRUCTURAL CONTROL & HEALTH MONITORING, 2022, 29 (02)
[10]   Study on the mechanical behavior and energy characteristics of rocks with closed cracks based on combined finite-discrete element method [J].
Yuan, Honghui ;
Liu, Chi ;
Zhu, Wei ;
Liu, Xiaoli ;
Qi, Qingxin .
COMPUTERS AND GEOTECHNICS, 2025, 179
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