PSI - Issue 59

V. Iasnii et al. / Procedia Structural Integrity 59 (2024) 299–306 V. Iasnii et al. / Structural Integrity Procedia 00 (2019) 000 – 000

301

3

0.06

mm/mm

ε

The length of the wire is 343 mm, the spring stiffness is 217.7 N/mm, and the point mass is 6 tons.

Fig. 2. Dynamic model of the damping device and FEM grid.

The following boundary conditions were used in the calculations: one end of the model is rigidly clamped, and the other, where the point mass is attached, is subject to either displacement or velocity. 2.3. Model verification The calculations with the displacement of the point mass were performed to verify the model behavior. The displacement amplitudes ranged from +/-3mm to +/-9mm. Fig. 3 depicts the graphs of the dependency of displacement and strain on the applied load. The plots indicate the plateau of the martensitic transformation, austenitic transformation plateau, and the absence of residual deformations. Therefore, we can assert that the model, under the influence of loading, reflects the behavior of a pseudoelastic material.

a)

b)

Fig. 3. Graph of dependence of (a) displacement and (b) strain on load.