Finite element simulation of transformation plasticity in martensitic transformation

Detta är en avhandling från Linköping : Linköpings universitet

Författare: Kjell Simonsson; Linköpings Universitet.; Linköpings Universitet.; [1992]

Nyckelord: TEKNIKVETENSKAP; TECHNOLOGY; Phase transformations. transformation plasticity; micromechanical models; martensitic transformation; finite element simulations. thermodynamics; moving interface; mechanical dissipation;

Sammanfattning: This study is concerned with the simulation of transformation plasticity in martensitic transformation.In the first paper the concept of a transformation plasticity strain is introduced from a phenomenological point of view. The basic physical mechanisms behand the phenomenon are discussed, and existing models concerning the evolution of transformation plasticity strain are reviewed.In the second and third paper a micromechanical finite element simulation of a martensitic transformation is presented. The second paper is mainly devoted to a model description, while results are presented and discussed in the third paper.In the fourth paper the thermodynamics of a continuous body containing a moving interface is reviewed, and as an application of the theory, the case of a martensitic transformation is considered.

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