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Development of a 2-D Interfacial Dynamic Model for Detwinning in HTSMAs

Abstract : This article presents the development of a 2D model for HTSMA which focus on interfaces motion in the martensitic state. We consider the topology of a 2D representative “volume” constituted of 4 martensite variants. Interfacial force is derived using Eshelby’s energy momentum tensor ans compared with a critical threshold which depends on interfacial lenght. A criterion for annihiling compatible interfaces is incorporated in this framework. The model is firtly applied to the description of detwinning mechanism in a grain. First results are presented.
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Thomas Ara, Sophie Berveiller, Etienne Patoor, Céline Bouby, Tarak Ben Zineb. Development of a 2-D Interfacial Dynamic Model for Detwinning in HTSMAs. ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Nancy Johnson; Andrei Zagrai; Ralph Smith, Sep 2013, Snowbird, UT, United States. ⟨10.1115/SMASIS2013-3089⟩. ⟨hal-01440364⟩



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