Corrosion’s impact on wire rope strand response – Comparison with a theoretical predictive model

Autor: Mohamed El Ghorba, Meryam Meknassi, Amal Tijani, Hassan Chaffoui
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frattura ed Integrità Strutturale, Vol 13, Iss 50 (2019)
Frattura ed Integrità Strutturale; Vol 13 No 50 (2019): October 2019; 141-148
Frattura ed Integrità Strutturale; V. 13 N. 50 (2019): October 2019; 141-148
Frattura ed Integrità Strutturale, Vol 13, Iss 50, Pp 141-148 (2019)
ISSN: 1971-8993
Popis: 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
Databáze: OpenAIRE