Analysis of Stress Singularity near the Tip of Artificial Crack

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 lambda at the tip of artificial crack, and the exponent lambda is, not only determined by materials parameter of artificial crack but also by angle.