Abstract
Stress intensity factors along the front of semicircular and part-circular surface flaws in bodies under uniform tension and under pure bending have been determined by photoelastic stress freezing and compared to other solutions. The variation of K1 reflects the change in the stress singularity λ, from 0.5 at the deepest point to 0.3 at the surface. The importance of the results on the evaluation of crack growth using traditional linear elastic fracture mechanics is discussed.
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