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Paper ecce-1997-284:
Crack path prediction using computer model fracture mechanics analysis

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El sheikhy R A I

Crack path prediction using computer model fracture mechanics analysis

Abstract:A general approach of crack path technique during fracture process is developed according to " Directional Fracture approach " (DFA). This technique is presented for cracks under kth-mixzd mode tension-shear and compression-shear. It is applied for all directional fracture criteria [S , G , S, , Ge . x] . The hypothesis of this technique depend on the hypothesis of the used criterion , crack angle@), crack length (a), fracture increment length (r), and fracture angle@) . Computer programs using Quick Basic language are developed . Several examples of cracked specimens have been analysed covering the experimentally tested samples recording a good agreement.

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