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2. T.L. Anderson, Fracture Mechanics - Fundamentals and Applications, CRC Press, Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL, 2005.
3. Analysis of an Infinite Plate Containing Radial Cracks Originating at the Boundary of an Internal Circular Hole
4. Effect of Crack Inclination and Residual Stress on the Stress Intensity Factor of Semi-elliptical Crack in a Pressure Vessel