Environmental effects on the reliability of an AISI 304 structure

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Published Jul 17, 2019
DOI https://doi.org/10.3221/IGF-ESIS.50.10

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Racim Boutelidja
Department of Mechanical Engineering, INFRA-RES Laboratory, MCM-Souk-Ahras University, Souk-Ahras, Algeria
Abdelmoumene Guedri
Department of Mechanical Engineering, INFRA-RES Laboratory, MCM-Souk-Ahras University, Souk-Ahras, Algeria
Mohammed Amine Belyamna
Department of Mechanical Engineering, INFRA-RES Laboratory, MCM-Souk-Ahras University, Souk-Ahras, Algeria
Bachir Merzoug
Departments of Mechanical Engineering, Badji Mokhtar University, Annaba, Algeria

Abstract

This work is based on the application of probabilistic fracture mechanics (MRP) models to predict the reliability of pressure pipelines in nuclear power reactors. The simulation of cracking of stainless steel piping under the conditions of intergranular stress corrosion cracking (IGSCC) is based on the improved modified piping reliability analysis including seismic events (PRAISE) code. The IGSCC is characterized by a unique damage parameter that depends on residual stresses and environmental conditions. Case studies of IGSCC failures in nuclear power plants are presented and the contribution of environmental effects on crack initiation and leakage is discussed. For small damages we observed that the change in temperature or oxygen concentration does not affect the initiation process but their decrease contribute favourably to the decrease in the leakage probabilities.

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    Issue
    Vol. 13 No. 50 (2019): October 2019
    Section
    SI: Fracture Mechanics versus Environment

    How to Cite

    Boutelidja, R., Guedri, A., Belyamna, M. A., & Merzoug, B. (2019). Environmental effects on the reliability of an AISI 304 structure. Frattura Ed Integrità Strutturale, 13(50), 98–111. https://doi.org/10.3221/IGF-ESIS.50.10

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