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This paper investigates the dynamic interaction of multiple cracks in a functionally graded piezoelectric material (FGPM) plane subject to an anti-plane shear stress wave. The non-local theory and Schmidt method are used. Employing the Fourier transform techniques, the problem is converted to...
A model is proposed on a macro scale to predict crack initiation caused by a constant amplitude fatigue load. It predicts the number of cycles (Ni) required to initiate the crack at the tip of a pre-crack, sharpened with a razor blade, by the relation Ni = 𝛼(KImax)𝛽 where KImax is the stress...
The model of interface crack, which assumes the existence near its tip the area of the contact of faces interactive by the law of dry friction, and the plastic zone with the small scale destruction zone in the part adjoining the crack tip with the high level of tensile and shear deformations is...
Semi-elliptical surface cracks are one of the most frequent cracks found in many structures in service, such as off-shore structures and aircraft components. The expense of replacement and time out of service have made repairing policy more attractive. Use of bonded composite patches is widely...
The test data crack initiation energy in Mode-I fracture, J1C is determined experimentally for various compositions of Al6061-TiC composites by using compact tension (CT) specimen with variable a∕W ratios. Also, 3D nonlinear (elastic-plastic) finite element analysis was carried for Compact...
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