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This paper deals with fracture analyses in three-dimensional bodies containing a surface crack. A general solution of stress-strain fields at the crack tip is proposed. Based on the stress-strain fields obtained, a high-order, three-dimensional special element is established to calculate the stress-intensity factors in a plate with surface crack. The variation of stress-intensity factors with geometric parameters is investigated.
three-dimensional, surface crack, fracture, local-global analysis, eigenfunction expansion, stress-strain field
Academic visitor, Oxford University, Oxford,