Remaining Life Estimation of the High Strength Low Alloy Steel Pipelines by Using Response Surface Methodology

Remaining Life Estimation of the High Strength Low Alloy Steel Pipelines

by Using Response Surface Methodology

Djamel Zelmati, Oualid Ghelloudj, Mohamed Hassani and Abdelaziz Amirat

1 Introduction

The finite element method has been used with great success in deterministic prob- lems, but it is little used with once the uncertainties are taken into account, due to the relatively long computational time required to solve the problems. In most cases, the problem treated presents several difficulties such as a three-dimensional structure, non-linearity, singularity …, so the objective function is not explicit and a combination of finite element and reliability methods has been conducted through a response surface, where the finite element code is controlled by the probabilistic model. The quadratic response surface is the most used as the basis of approximation of the objective function because it is considered the most efficient in the coupling with the finite element method. The quadratic form of the response surface does not allow the resulting anomaly of the oscillation of the approximations, which limits the number of trials (Wong1985; Ditlevsen and Madsen1996; Lemaire2013).

D. Zelmati (

B

Research Center in Industrial Technologies (CRTI), P.O. Box 64, 16014 Cheraga, Algiers, Algeria

e-mail:[email protected] O. Ghelloudj

e-mail:[email protected] D. Zelmati·O. Ghelloudj·A. Amirat

LRTAPM: Research Laboratory of Advanced Technology in Mechanical Production, Department of Mechanical Engineering, Faculty of Engineering Science,

Badji Mokhtar University Annaba, BP 12, 23000 Annaba, Algeria

© Springer Nature Switzerland AG 2019

T. Boukharouba et al. (eds.),Computational Methods and Experimental Testing In Mechanical Engineering, Lecture Notes in Mechanical Engineering, https://doi.org/10.1007/978-3-030-11827-3_14

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