An inclined surface crack subject to biaxial loading
作者： V.N. Shlyannikov , A.V. Tumanov
DOI: 10.1016/J.IJSOLSTR.2011.02.024
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摘要: Abstract The elastic–plastic stress fields and mode mixity parameters for semi-elliptical surface cracks on biaxial loaded plates have been investigated using detailed three-dimensional finite element calculations. Different degrees of are given by combinations the far-field level, ratio inclined crack angle. These analyses were performed different flaw geometries to study combined load biaxiality effects crack-front size shape plastic zones. It is clear from considering local distributions along front that elastic tip singularities derived several particular cases mixed loading. By theoretical analysis, new formulae introduced both mode-mixity parameters, accounting ratios between I/II, II/III III/I modes. Particular attention was paid strong variations front. mixed-mode behavior growth direction angle loading inclination angles also determined. done methods based maximum tangential strain energy density criteria.
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