Work

Comparison of the most harmful defects present in a steel pipe that can cause fatigue failure

Year: 2021

Type: conference-paper

Abstract: Steel pipes used for conveying pressurized fluids are often defective due to manufacturing error, improper handling or construction materials. These defects may be in the form of cracks which propagate until the mechanical structure is fractured, or in the form of dent which produce a local concentration of stress and thus weaken the structure. In this paper, we will present a numerical model for estimating the accumulation of damage that takes into account the effect of the loading history. This model will be used to evaluate the harmfulness of a dent on the one hand, of a semi-elliptical crack on the other hand. These defects wil be considered to be present in a metal tube subjected to internal pressures caused by the water hammer phenomenon. A parametric study will make it possible to conclude the most harmful defects among the defects studied.

Source: IOP Conference Series Materials Science and Engineering

DOI: 10.1088/1757-899x/1126/1/012007

Authors: Zakaria Mighouar, Hamza Khatib, Laidi Zahiri, Khalifa Mansouri

Institutions: École Normale Supérieure de l'Enseignement Technique de Mohammedia, University of Hassan II Casablanca

Language: English

Topic: Structural Integrity and Reliability Analysis

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W3139953227

FWCI: 0.67

Cites: 9

Cited by: 4

Related to: 10