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10 March 2014 Stable crack growth during actuation in shape memory alloys
Sameer Jape, Theocharis Baxevanis, Dimitris C. Lagoudas
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Proceedings Volume 9058, Behavior and Mechanics of Multifunctional Materials and Composites 2014; 905802 (2014) https://doi.org/10.1117/12.2048590
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States
Abstract
A finite element analysis of crack growth is carried out in an in nite center-cracked shape memory alloy plate subjected to thermal variations under plane strain mode I constant applied loading. Crack is assumed to propagate when the energy release rate reaches a material specific critical value. The virtual crack growth technique is employed to calculate the energy release rate, which was shown to increase an order of magnitude at constant applied loading as a result of phase transformation induced by thermal variations.1 A fracture toughening is observed associated with the energy dissipated by the transformed material in the wake of the growing crack and its sensitivity over key thermomechanical parameters is presented.
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Sameer Jape, Theocharis Baxevanis, and Dimitris C. Lagoudas "Stable crack growth during actuation in shape memory alloys", Proc. SPIE 9058, Behavior and Mechanics of Multifunctional Materials and Composites 2014, 905802 (10 March 2014); https://doi.org/10.1117/12.2048590
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Cited by 7 scholarly publications.
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KEYWORDS
Shape memory alloys
Finite element methods
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