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2. An empirical stress-intensity factor equation for the surface crack;Newman;Engng Fract Mech,1981
3. ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels Division, 3, Appendix D—Non mandatory fracture mechanics calculations, New York: ASME; 1998
4. Stress-intensity factors for internal surface cracks in cylindrical pressure vessels;Newman;Trans ASME,1980
5. Stress intensity factor for semi-elliptical surface cracks in plates and cylindrical pressure vessels using the hybrid boundary element method;Guozhong;Engng Fract Mech,1995