Comprehensive Analogical Approach to Internal Mechanics of Steel Wire Ropes - Fatigue Life Prediction and FEM Verification

Ahmet Atak

Bolt-Nut analogy, Fatigue life, Helical spring, Hertz contact pressure, Internal contact stress.

This study presents a comprehensive analytical and analogical investigation into the internal mechanics of helical steel wire ropes under axial loading conditions. In addition to classical tensile stress analysis, the approach integrates a Bolt-Nut analogical model, Hertzian contact stress, and helical spring shear theory. Deformation compatibility, contact forces, and shear effects were considered to compute load distribution among the wires. The proposed methodology is validated using Finite Element Method (FEM) simulations. Fatigue life prediction was carried out through the Goodman approach and compared with literature-based models and experimental data. The model provides a novel systematic formulation that contributes to the understanding and design of stranded wire ropes.

https://dx.doi.org/10.31873/IJEAS.12.07.02