Comparative study on modes I and II fracture characteristics of bituminous coal using asymmetric semi-circular bend specimen
Y Zhao, Z Sun, T Teng, W Wang, NN Danesh… - Theoretical and Applied …, 2022 - Elsevier
Modes I and II fractures of coal play an important role in coal mining and have a serious
impact on coal production and the control of mining hazards. Therefore, asymmetric semi-
circular bend (ASCB) specimens with different notch depths were used to carry out modes I
and II loading tests. The differences in the modes I and II fracture characteristics of coal
specimens were studied. The internal damage characteristics, surface displacement
characteristics, failure mode and microscopic damage mechanism of bituminous coal …
impact on coal production and the control of mining hazards. Therefore, asymmetric semi-
circular bend (ASCB) specimens with different notch depths were used to carry out modes I
and II loading tests. The differences in the modes I and II fracture characteristics of coal
specimens were studied. The internal damage characteristics, surface displacement
characteristics, failure mode and microscopic damage mechanism of bituminous coal …
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