Drilling-Hole-Loading Method for Measuring Tensile Strength of Irregular Small Stones

Abstract:

Drilling-Hole-Loading method is applied to predicting and measuring the tensile strength of irregular small-size stones. According to this method, a circular-hole must be drilled at the center of the irregular small-size stone. The mechanical model of the stone with a circular-hole and subjected to a pair of equivalent collinear pull forces is set up. The normal stress strain distributions on the critical section are anlyzed. Theoretical stress concentrated factor equation related to the hole diameter is calculated. Based on the static equilibrium theory, the theoretical formula of predicting the tensile strength of irregular small-size stones is established. Based on the theoretical formula, the test device for measurement of the tensile strength of the stone was designed. The tensile strength of a kind of bluestone was measured. The results show that the tensile strength predicted by Drilling-Hole-Loading method is a little lower than that of the standard specimen of stone without hole. Drilling-Hole-Loading method can be used to predict the tensile strength of brittle material and irregular small-size stones.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 649-653
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.649
• Online since: December 2012
• Authors: Jin Chen, Ming Liu, Jie Min Liu
• Keywords: Drilling-Hole-Loading Method, Irregular Small-Size Stone, Strength Prediction, Tensile Strength

References

[1] Baeurle S.A., Usami T., Gusev A.A.: Polymer 2006, 47, 8604-8617.

[2] A. D. Foster, J. Lin, D. C. J. Farrugia and T. A. Dean: Journal of Multi Scale Modeling, 2009, 1(3), 369-387.

[3] Marcin Chrzanowski and Krzysztof Nowak: Journal of Multi-scale Modeling, 2009, 1(3), 389-402.

[4] Xianbin Yu, Qingrong Wang, Xinyi Li: Rock and Soil Mechanics, 2008, 01. In Chinese.

[5] Wei Li, Weidong Song, Jianguo Ning: Chinese journal of solid mechanics, 2010, 31(4). In Chinese.

[6] Huaifa Ma, Houqun Chen, Baokun Li: Journal of Hydraulic Engineering, 2004, 10. In Chinese.

[7] Xinwei Tang, Chuhan Zhang: Chinese Journal of Computational Mechanics, 2009, 06. In Chinese.

[8] Weixiong Zeng, Guozan Lin: Chinese Journal of Rock Mechanics and Engineering, 2003, 04. In Chinese.

[9] Diyuan Li, Xibing Li: Chinese Journal of Rock Mechanics and Engineering, 2010, 03. In Chinese.