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Convergent numerical approximations of the thermomechanical phase transitions in shape memory alloys

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Summary

Discrete approximations are constructed to a nonlinear evolutionary system of partial differential equations arising from modelling the dynamics of solid-state phase transitions of thermomechenical nature in the case of one space dimension. The class of problems considered includes the so-called shape memory alloys, in particular. It is shown that the obtained discrete solutions converge to the solution of the original problem, and numerical simulations for the shape memory alloy Au23Cu30Zn47 demonstrate the quality of the discrete model.

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Partially supported by Research Program RP.1.02

Supported by DFG, SPP “Anwendungsbezogene Optimierung und Steuerung”

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Niezgódka, M., Sprekels, J. Convergent numerical approximations of the thermomechanical phase transitions in shape memory alloys. Numer. Math. 58, 759–778 (1990). https://doi.org/10.1007/BF01385653

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