| Modify the Phase-Diagram to enter Effects of Loading History on Transformation Surface in Shape Memory Alloys |
| In most of the existing SMA constitutive models, it is assumed that transformation starts when a thermodynamic driving force reaches a specified amount regardless of loading history. In this work, a phenomenological approach is used to develop an enhanced one-dimensional constitutive model in which loading history is directly considered as one of the main parameters affecting the transformation start conditions. To generalize the model to three-dimensional cases, a microplane formulation based on volumetric-deviatoric is employed. A free energy potential is defined at the microplane level, integratied over all orientations at a material point to provide the macroscopic free energy. |
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M. Shirani, R. Mehrabi, M. Kadkhodaie, M. Elahinia, “Modify the Phase-Diagram to enter Effects of Loading History on Transformation Surface in Shape Memory Alloys”, SMASIS2014, Newport, RI , USA, 2014.
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| | 1393/3/12 |
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1/10 (تعداد آرا 4 نفر )
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