Modeling and optimization of a cracked pipeline under pressure by an interactive method: design of experiments

Bahram, Kaddour; Bouchouicha, Benattou; Benguediab, M.; Slimane, Abdelkader

doi:10.1007/s12008-017-0385-0

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…Modern FEM simulations permits to reduce considerable the cost of product design process and to estimate in real time potential harmful situation when a crack nucleate and propagate. Besides, applying numerical simulation allows investigate the structural response of a components and predicting its live during working condition [5]. It permits to highlights improvement of design by eliminating the physical/real constrain (incapacity to test large/long products (chain of pipe), visualize their behavior in harsh environ-ments, etc.…”

Section: Introductionmentioning

confidence: 99%

Computation of the stress intensity factor KI for external longitudinal semi-elliptic cracks in the pipelines by FEM and XFEM methods

Fakkoussi

Moustabchir

Elkhalfi

et al. 2018

Int J Interact Des Manuf

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Evaluation of structural integrity of a cracked structure has become an important matter in the industrial field since couples of decades. However, damage process occurred in a structural component is not yet fixed. The objective of this research was to compute the stress intensity factor KI, in mode I, using in the linear elastic domain, by the finite element method and the extended finite element method. The defect studied in this survey has a form of a longitudinal semi-elliptic crack, located on the outer surface of the tube. A summary of the paper contains a numerical convergence for each method in terms of accuracy and limitations. The proposed methodology and outcomes released from this study act as novel design tool for the industrial engineers when is required to generate a robust solution for product development working in critical conditions.

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Section: Introductionmentioning

confidence: 99%

Computation of the stress intensity factor KI for external longitudinal semi-elliptic cracks in the pipelines by FEM and XFEM methods

Fakkoussi

Moustabchir

Elkhalfi

et al. 2018

Int J Interact Des Manuf

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“…These microstructural effects are associated with welding conditions especially the position of the weld seam according to the orientation of loads and stresses [10][11]. The thermal effect of the welding cycle gives microstructural heterogeneity in this zone (HAZ) made up of several subzones with different microstructures that can cause different behaviours [12][13][14]. A ferrite-bainitic microstructure offers better resistance to crack propagation in the welded zone than the martensitic or bainitic structures [15].…”

mentioning

confidence: 99%

Influence of themo-mechanical treatments and microstructural state on the fatigue behaviour of a weald seam: case of API X60 steel

Achoui

Sebaa

Bouchouicha

2021

Frattura Ed Integrità Strutturale

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The aim of this work is the study of the fatigue behaviour of API X60 steel and the influence of thermal and mechanical treatments. The evaluation of the integrity and safety of welded structures dictates the approach taken in this research. The microstructural observations on the different zones of the weld seam indicates that the variation of heterogeneous structure is a progressive destruction of the strips of lamination which cause a new phase leading to a drop in the mechanical properties requiring treatment after welding. The fatigue cracking rate diverges beyond the threshold of DK, but no deviation of the crack from its propagation axis was noticed, which confirms the correct choice of filler metal over that of the base metal with an overmatching M = 1.1, and the treatments applied to the structure. This fatigue cracking rate transversal to the welding direction initially presents an aspect similar to that of BM but registers a delay as soon as the crack tip enters the second zone (HAZ) then it progresses rapidly. This evolution is characterized by a disturbance due to the repeated change of microstructure.

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Mechanical behavior of carbon fiber-reinforced plastic during rotary ultrasonic machining

Slimane,

Chaib,

Slimane

et al. 2024

Int J Adv Manuf Technol

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Modeling and optimization of a cracked pipeline under pressure by an interactive method: design of experiments

Cited by 9 publications

References 17 publications

Computation of the stress intensity factor KI for external longitudinal semi-elliptic cracks in the pipelines by FEM and XFEM methods

Computation of the stress intensity factor KI for external longitudinal semi-elliptic cracks in the pipelines by FEM and XFEM methods

Influence of themo-mechanical treatments and microstructural state on the fatigue behaviour of a weald seam: case of API X60 steel

Mechanical behavior of carbon fiber-reinforced plastic during rotary ultrasonic machining

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