Stress intensity factors for high aspect ratio semi-elliptical internal surface cracks in pipes

Surface cracks with aspect ratio a/c>1.0 can occur in pipes subjected to corrosion attacks. There are few studies on stress intensity factors for semi-elliptical surface cracks with such high aspect ratio. With the failure rate for cast iron pipes unacceptably high there is a need to examine the accuracy of the prediction of stress intensity factors for pipes with high aspect ratio. However, little research has been undertaken on stress...