Analysis of Failure Mode and Propagation for Crack in Uniaxial Compression

Abstract:

This paper analyzed the failure mode for crack in uniaxial compression according to the stress intensity factor, and obtain that the failure mode for crack in uniaxial compression is compression-shear. The wing crack was deformed, after the crack tip initiate. By analyzing the dimensionless stress intensity factor, we obtain that the failure mode for wing crack in uniaxial compression is tension-shear, and we obtain that the dimensionless stress intensity factor for wing crack decreased with inclined angle increased. The inclined crack propagation in uniaxial compression was numerically studied using rock failure process analysis code (rfpa), and obtain that one inclined crack in uniaxial compression formed mode I offset crack parallel to load direction in the end. The numerical results of failure mode are accordance with stress intensity factor.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2929-2932
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2929
• Online since: May 2012
• Authors: Ya Zhen Sun, Xiao Xing Zhai, Jie Min Liu
• Keywords: Dimensionless Stress Intensity Factor, Failure Mode, Inclind Crack in Uniaxial Compression, Wing Crack

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