Analysis of Stress Singularity near the Tip of Artificial Crack

Abstract:

A generalized expression of the stress-singularity function at the tip of artificial crack is proposed, and a formula to calculate the stress intensity factor of artificial crack is obtained in the paper. The solutions of stress singularity of a cracked bi-materials beam under uniform tension and bending were computed. The results show that the degree of stress-singularity is determined by the exponent λ at the tip of artificial crack, and the exponent λ is, not only determined by materials parameter of artificial crack but also by angle. Key words: artificial crack; bi-material; stress singularity; eigen value; stress extrapolation method

• Periodical: Key Engineering Materials (Volumes 525-526)
• Pages: 445-448
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.525-526.445
• Online since: November 2012
• Authors: You Tang Li, Huai Qing Li
• Keywords: Artificial Crack, Bi-Material, Eigen Value, Stress Extrapolation Method, Stress Singularity

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