Issue 50

A. Tijani et alii, Frattura ed Integrità Strutturale, 50 (2019) 141-148; DOI: 10.3221/IGF-ESIS.50.13 141 Corrosion’s impact on wire rope strand response – Comparison with a theoretical predictive model Amal Tijani Laboratory of Atmosphere’s Physics, materials and modeling, FST Mohammedia, Hassan II University of Casablanca, BP 146 - Mohammedia, Morocco amaltijani@gmail.com, http://orcid.org/0000-0003-4543-1253 Meryam Meknassi Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics (ENSEM), Hassan II University of Casablanca, B.P 8118 Oasis – Casablanca, Morocco Hassan Chaffoui Laboratory of Atmosphere’s Physics, materials and modeling, FST Mohammedia, Hassan II University of Casablanca, BP 146 - Mohammedia, Morocco Mohamed Elghorba Laboratory of Control and Mechanical Characterization of Materials and Structures, National Higher School of Electricity and Mechanics (ENSEM), Hassan II University of Casablanca, B.P 8118 Oasis – Casablanca, Morocco A BSTRACT In this work, we investigate the behavior of wire ropes when they are subject to corrosion damage. The method is based on accelerated corrosion using experimentation as well as a theoretical predictive model. The experimental approach used static tensile tests on corroded strands. A loss in rigidity and decrease of the ultimate force was observed. For the predictive model, the residual ultimate force was evaluated at a time t in function of the initial diameter, the residual diameter at time t and the ultimate force of the original strand. Given that the obtained residual force evolution depending on the strand’s fraction of life matched for both methods, the proposed predictive model can be used by engineers to assess if the wire rope needs to be changed to ensure a good maintainability of structures. Actually, when the applied force on the wire rope approaches its residual bearing force determined by a measure of the residual diameter, the wire rope removal is mandatory. K EYWORDS Wire rope; Accelerated corrosion; Damage; Residual force; Reliability; Predictive maintenance. Citation: Tijani, A., Meknassi, M., Chaffoui, H., Elghorba, M., Effect of corrosion on wire rope strand response - Comparison with a theoretical predictive model, Frattura ed Integrità Strutturale, 50 (2019) 141-148. Received: 24.05.2019 Accepted: 19.07.2019 Published: 01.10.2019 Copyright: © 2019 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.