Rectangular tensile sheet with single edge crack or edge half-circular-hole crack |
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Affiliation: | Research Laboratory on Composite Materials, Harbin Institute of Technology, Harbin 150001, PR China |
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Abstract: | By using the displacement discontinuity method with crack-tip elements (a boundary element method) proposed recently by the author, this note presents the stress intensity factors (SIFs) of a rectangular tensile plate with single edge crack. Further this note studies the SIFs of crack emanating from an edge half-circular hole. By comparing the calculated SIFs of the single edge half-circular-hole crack with those of the single edge crack, a shielding effect of the half-circular hole on the SIFs of the single edge crack is discussed. It is found that the boundary element method is simple, yet accurate for calculating the SIFs of complex crack problems in finite plate. |
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