The yield effect in viscoplastic materials. A mathematical model
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We propose a phase field system that describes an elastic–plastic transition in which we observe a performance force linked to a stress that has a permanent deformation. This yield behavior is described by a nonlinear fractional model, and its thermodynamic compatibility is demonstrated. Finally, some simulations are presented describing the phase diagram of deformation and deformation cycles.
Mathematics Subject Classification74A50
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Conflicts of interest
Finally, the authors declare that they have no conflict of interest on the subject discussed in this manuscript.
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