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Study of Fracture Parameter for Curved Cracked Bimodular Flexural Specimen Using COMSOL Multiphysics® Software
Publié en 2016
The formulation of bimodular stress field is based on stress dependent elasticity and the simulations have been carried out using commercial finite element software COMSOL Multiphysics® software. The complexity of the problem is enhanced due to adding bimodular stress field in the evaluation of complex J-integral ( ˆ F J ) for curve cracked geometry subjected to flexural loading. The complex J-integral ˆ FJ is found to be almost path independent and its degree of path independency is better than Rice’s J-integral (1968). The severity of bimodular 2D curved crack progression behavior has been delineated with asymmetry of stress-distribution and distortion of neutral axis.
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