Gouge Assessment for Pipes and Associated Transferability Problem

Mohammed Hadj Meliani; G. Pluvinage; J. Capelle

doi:10.4028/www.scientific.net/DDF.294.15

Paper Titles

Predicting Diffusion Coefficients from First Principles via Eyring’s Reaction Rate Theory
p.1

Gouge Assessment for Pipes and Associated Transferability Problem
p.15

Simulation of the Impact Behaviour of Diffusion-Bonded and Adhered Perforated Hollow Sphere Structures (PHSS)
p.27

Elastic-Plastic Fracture Mechanics Model for Planar Isotropic Porous Materials with Small Mixed-Mode Cracks
p.39

Calculation of Fracture Toughness for Hydrogen Embrittlement in a Pressure Vessel
p.49

A Realistic Method to Describe the Role of Diffusion in Catalyst Design
p.65

Studies of the Axial Shift and the Spin Hamiltonian Parameters for Mn²⁺ in a CdS Crystal
p.77

Structure and Electronic Properties of Evaporated Thin Films of Lead Sulfide
p.85

Acoustic Emission during Isothermal Oxidation of 2.25Cr-1Mo Steel
p.93

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 294Gouge Assessment for Pipes and Associated...

Gouge Assessment for Pipes and Associated Transferability Problem

Abstract:

The purpose of this work is to assess a gouge defect in a pipe submitted to internal pressure. To do that a method is used which is based upon a failure assessment diagram and, more precisely, upon a Modified Notch Failure Assessment Diagram (NMFAD) which has been proposed as a mesofracture approach. The safety factor has been determined under conservative conditions; i.e for a X52 pipe steel having a relatively low fracture toughness and a severe gouge defect with high aspect ratio and high constraint. In addition, a mesofracture approach to the fracture toughness transferability problem has been proposed. The crack (K-T) methodology has been modifed to create the ( –Teff) two-parameter fracture resistance criterion.

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Periodical:

Defect and Diffusion Forum (Volume 294)

Pages:

15-25

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.294.15

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Online since:

December 2009

Authors:

Mohammed Hadj Meliani, G. Pluvinage, J. Capelle

Keywords:

Critical Stress Intensity Factor, Fracture Toughness, Gouge Defect, Mesofracture, Pipe Assessment, Stress Concentration

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