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Results of planar boundary collocation analysis are given for ring segment (C-shaped) specimens with radial cracks, subjected to combined forces and couples. Mode I stress intensity factors and crack mouth opening displacements were determined for ratios of outer to inner radius in the range 1.1 to 2.5 and ratios of crack length to segment width in the range 0.1 to 0.8.
fracture properties, crack propagation, stress analysis, stresses, strains, displacement
Materials engineer, NASA-Lewis Research Center, Cleveland, Ohio
Head, NASA-Lewis Research Center, Cleveland, Ohio