Research Article
A Constitutive Model for Superelastic Shape Memory Alloys Considering the Influence of Strain Rate
Table 1
Comparisons of model predictions and experimental data for varying peak strains: constant strain rate.
| Peak strain (m/m) | Energy dissipation per cycle (MJ/m3/cycle) | Tensile stress at peak strain (GPa) | Equivalent viscous damping (%) | Experimental data | Numerical results | Difference | Experimental data | Numerical results | Difference | Experimental data | Numerical results | Difference |
| 2.0% | 2.20 | 2.25 | 2.13% | 354.21 | 352.69 | ā0.43% | 4.95 | 5.08 | 2.57% | 4.0% | 5.84 | 5.95 | 1.89% | 351.20 | 357.82 | 1.88% | 6.62 | 6.63 | 0.45% | 5.85% | 8.91 | 9.17 | 2.91% | 359.32 | 362.57 | 0.91% | 6.75 | 6.88 | 1.98% |
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