PSI - Issue 47

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com Procedia Structural Integrity 47 (2023) 952–958

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© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons Abstract In this article, we are first interested in monitoring the damage evolution as a function of the life fraction of CPVC pipes, through the development of the static damage curve based on the ultimate residual stress. In fact, from the tensile tests under the effect of the temperature of specimens extracted from the CPVC tubes, we established the damage curve from the different results obtained which allowed us to deduce the reliability of the structures of this material and then plot the curve of the bathtub and determine the three stages in the life of the pipes in order to control the maintenance plans to be planned to prevent accidents due to CPVC failures and to perform predictive and systematic maintenance operations at the time opportune with minimum cost. Abstract In this article, we are first interested in monitoring the damage evolution as a function of the life fraction of CPVC pipes, through the development of the static damage curve based on the ultimate residual stress. In fact, from the tensile tests under the effect of the temperature of specimens extracted from the CPVC tubes, we established the damage curve from the different results obtained which allowed us to deduce the reliability of the structures of this material and then plot the curve of the bathtub and determine the three stages in the life of the pipes in order to control the maintenance plans to be planned to prevent accidents due to CPVC failures and to perform predictive and systematic maintenance operations at the time opportune with minimum cost. Keywords: Maintenance; CPVC; Damage; Tensile test; Temperature; MTBF; MTTR. 1. Introduction The spectacular technological changes which are continuously taking place in the industrial field have given rise to the development of new maintenance and design techniques. Thus, the maintenance function is currently experiencing 27th International Conference on Fracture and Structural Integrity (IGF27) CPVC structure maintenance plans based on tensile tests under effect of temperature Fatima Gugouch a, *, Achraf Wahid b , Hassan Bouhssis c , Rabie EL Otmani d , Mohamed Elghorba a a University of Hassan II, ENSEM (National Superior School of Electricity and Mechanics), LCCMMS, Casablanca, Morocco b Condensed Matter Physics Laboratory, Faculty of Sciences Ben M’Sik, University Hassan II of Casablanca, B.P. 7955, Casablanca, Morocco c National School of Applied Sciences Al Hoceima, Al Hoceima, Morocco d ENSAJ, University of Choaib Doukkali, Eljadida, Morocco 27th International Conference on Fracture and Structural Integrity (IGF27) CPVC structure maintenance plans based on tensile tests under effect of temperature Fatima Gugouch a, *, Achraf Wahid b , Hassan Bouhssis c , Rabie EL Otmani d , Mohamed Elghorba a a University of Hassan II, ENSEM (National Superior School of Electricity and Mechanics), LCCMMS, Casablanca, Morocco b Condensed Matter Physics Laboratory, Faculty of Sciences Ben M’Sik, University Hassan II of Casablanca, B.P. 7955, Casablanca, Morocco c National School of Applied Sciences Al Hoceima, Al Hoceima, Morocco d ENSAJ, University of Choaib Doukkali, Eljadida, Morocco Keywords: Maintenance; CPVC; Damage; Tensile test; Temperature; MTBF; MTTR. 1. Introduction The spectacular technological changes which are continuously taking place in the industrial field have given rise to the development of new maintenance and design techniques. Thus, the maintenance function is currently experiencing

* Corresponding author. E-mail address: Fatima.gugouch@ensem.ac.ma

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons 10.1016/j.prostr.2023.07.027 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons 2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the IGF27 chairpersons * Corresponding author. E-mail address: Fatima.gugouch@ensem.ac.ma