Abstract
A new analytical model is derived for cantilever beams made from superelastic shape memory alloy and subjected to tip load. The deformation of the beam is described based on Timoshenko beam theory using constitutive relations that account for asymmetric shape memory alloy response in tension and compression. Analytical moment and shear force equations are developed and the position of the neutral axis and the different solid phase regions in the beam are tracked throughout a full loading–unloading cycle. Validation of the proposed model is carried out against data from the literature and from the finite element analysis considering tensile–compressive asymmetry in shape memory alloy behavior.
| Original language | English |
|---|---|
| Pages (from-to) | 2697-2715 |
| Number of pages | 19 |
| Journal | Journal of Intelligent Material Systems and Structures |
| Volume | 30 |
| Issue number | 18-19 |
| DOIs | |
| Publication status | Published - 1 Nov 2019 |
Keywords
- Timoshenko theory
- analytical modeling
- experimental validation
- loading–unloading cycle
- shape memory alloys
- tension–compression asymmetry
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