Constitutive models of shape memory alloys and their implementation to finite elements
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Abstract (EN)
The aim of this work is to study existing constitutive models for shape-memory alloys and to implement them to finite elements. Fracture behavior in Mode-I and mixed-mode is studied and, for this purpose, a 2D edge cracked shape-memory alloy plate is discretized and UMAT interface of Abaqus, with different constitutive models is used. Phase transformation stress distributions around the crack tip are studied in detail for different amounts of loadings, and crack lengths. Results are tabulated and plotted to show the differences between different models. The effect of stress induced phase transformation is also studied.
Author
Mete Yurtoğlu
How to Cite
Mete Yurtoğlu (Master Thesis). Constitutive models of shape memory alloys and their implementation to finite elements, 2012, Boğaziçi University.
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