Stress intensity factors for cracks emanating from rectangular cutouts
Tóm tắt
The stress intensity factors are determined at the crack roots for a rectangular cutout with symmetric edge cracks in an infinite sheet under uniaxial tension. The stress analysis is carried out using conformal mapping and the Muskhelishvili formulation. Numerical results are obtained for varying crack length and selected length-to-width ratios for the rectangle. The stress intensity factors are compared to those for a single internal crack to illustrate the influence of the cutout effects.
Tài liệu tham khảo
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G. R. Irwin, Analysis of Stress and Strains Near The End of a Crack Traversing Plate, Journal of Applied Mechanics, 24, 3 (1957), 3
O. L. Bowie, Crack Stresses: An Application of Muskhelishvili's Extension Principle for Multivalued Mapping Functions. Army Materials and Mechanics Research Center, WAL TR, 811.8/4, March 1963.
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O. L. Bowie, Rectangular Tensile Sheet with Edge Cracks. Journal of Applied Mechanics, 31, 2 (1964); Army Materials and Mechanics Research Center, AMRA TR 63-22, October 1963.
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