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A nonlinear constitutive relationship was established to investigate nonlinear behaviors of ultrasonic wave propagation in plastically damaged media based on analyses of mixed dislocation evolution. Finite element simulations of longitudinal wave propagation in plastically deformed martensite stainless steel were performed based on the proposed nonlinear constitutive relationship, in which the contribution...
An analytical model is proposed for describing the influence of mixed dislocation on the acoustic nonlinearity in the plastically deformed materials, which is derived based on the dislocation line energy and variable line tension. Based on the proposed model, the interaction of nonlinear plane longitudinal wave with the plastically deformed materials was simulated in this article. The simulation was...
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