Environmental effects on the reliability of an AISI 304 structure

Racim Boutelidja; Abdelmoumene Guedri; Mohammed Amine Belyamna; Bachir Merzoug

doi:10.3221/IGF-ESIS.50.10

Environmental effects on the reliability of an AISI 304 structure

Authors

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

DOI:

https://doi.org/10.3221/IGF-ESIS.50.10

Keywords:

Modified PRAISE code, Stress Corrosion Cracking Environment, Reliability

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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Published

17-07-2019

Issue

Vol. 13 No. 50 (2019): October 2019

Section

SI: Fracture Mechanics versus Environment

License

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

Open Access Statement

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How to Cite

Environmental effects on the reliability of an AISI 304 structure. (2019). Frattura Ed Integrità Strutturale, 13(50), 98-111. https://doi.org/10.3221/IGF-ESIS.50.10