1. Fundamentals of Fracture Mechanics;Knott,1973
2. Experimental Techniques in Fracture Mechanics;Kobayashi,1973
3. Finite element solution to point-load problems;Shephard;J. Engng Mech. Div., ASCE,1981
4. Stress intensity factor using quarter point element;Mutri;J. Engng Mech. Div., ASCE,1985
5. Concepts and Application of Finite Element Analysis;Cook,1981