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Location of the Crack Initiation Points in the Brazilian Disc Test

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Abstract

To study the location of crack initiation and its failure mode in the Brazilian test, the analytical location of the crack initiation under different failure modes was first discussed with the stress formulas of the Brazilian test. Then, by using the numerical simulation technique of fast Lagrangian analysis of continua to simulate the ideal Brazilian test, we found that: (a) when the crack was a tensile fracture, the crack initiation point was found to be around the maximum tension stress point; (b) when the crack was a shear failure, the crack initiation point, which was only related to the internal friction angle, was found between the maximum tension stress point and the tensile critical point; and c. the numerical conclusion well verified the correctness of the theoretical analysis and was in good agreement with the results of other papers.

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Acknowledgments

This paper gets its funding from Project (51304240) supported by National Natural Science Foundation of China; Project (20120162120014) supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China; Project (KLE-TJGE-B1305) supported by Open Fund of Key Laboratory of Geotechnical and Underground Engineering (Tongji University), Ministry of Education. The authors wish to acknowledge these supports.

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Authors and Affiliations

  1. School of Resources and Safety Engineering, Central South University, Changsha, 410083, Hunan, China

    Hang Lin, Wei Xiong & Wenwen Zhong

  2. Key Laboratory of Geotechnical and Underground Engineering, Ministry of Education, Tongji University, Shanghai, 200092, China

    Hang Lin & Caichu Xia

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  1. Hang Lin
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  2. Wei Xiong
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  3. Wenwen Zhong
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  4. Caichu Xia
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Correspondence to Hang Lin.

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Lin, H., Xiong, W., Zhong, W. et al. Location of the Crack Initiation Points in the Brazilian Disc Test. Geotech Geol Eng 32, 1339–1345 (2014). https://doi.org/10.1007/s10706-014-9800-5

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  • DOI: https://doi.org/10.1007/s10706-014-9800-5

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