Bending is a common mode of application and operation of shape memory alloys (SMA). So far the coupled thermomechanical behavior of these alloys have been modeled with numerical methods such as finite element. The issue in developing exact solutions for a SMA beam in bending is because of the distributed and hysteric stress-strain profile. In this paper an analytical approach is developed to find the exact solution for the displacement due to the applied force on the SMA superelastic beam. The approach is based on the assumption of linear distribution of strain along the height of a cross section in the beam. The solution is validated by experimental data and the results of the solution for a superelastic beams for different cases are illustrated.
- Aerospace Division
Exact Solution for Bending of Shape Memory Alloy Superelastic Beams
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Eshghinejad, A, & Elahinia, M. "Exact Solution for Bending of Shape Memory Alloy Superelastic Beams." Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2. Scottsdale, Arizona, USA. September 18–21, 2011. pp. 345-352. ASME. https://doi.org/10.1115/SMASIS2011-5151
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