Strength prediction of a steel pipe having a hemi-ellipsoidal corrosion defect repaired by GFRP composite patch using artificial neural network

Brahim, A. Oulad; Belaidi, I; Khatir, Samir; Thanh, C Le; Mirjalili, Seyedali; Wahab, Magd Abdel

doi:10.1016/j.compstruct.2022.116299

Cited by 12 publications

(4 citation statements)

References 37 publications

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“…The load enhancement was 16, 0.6 and 5.0% for W P 5, 15 and 30 mm, respectively. This agrees with the results obtained by Abd-Elhady et al (2020) and Abdelmoumin et al (2023). A double patch with W p equal to 15 mm gives a peak load close to that of a single patch for the same width, with an increase of only 0.6%.…”

Section: Effect Of Single or Double Patchsupporting

confidence: 92%

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Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Althahban,

Nowier,

El-Sagheer

et al. 2024

FEBE

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PurposeThis paper comprehensively addresses the influence of chopped strand mat glass fiber-reinforced polymer (GFRP) patch configurations such as geometry, dimensions, position and the number of layers of patches, whether a single or double patch is used and how well debonding the area under the patch improves the strength of the cracked aluminum plates with different crack lengths.Design/methodology/approachSingle-edge cracked aluminum specimens of 150 mm in length and 50 mm in width were tested using the tensile test. The cracked aluminum specimens were then repaired using GFRP patches with various configurations. A three-dimensional (3D) finite element method (FEM) was adopted to simulate the repaired cracked aluminum plates using composite patches to obtain the stress intensity factor (SIF). The numerical modeling and validation of ABAQUS software and the contour integral method for SIF calculations provide a valuable tool for further investigation and design optimization.FindingsThe width of the GFRP patches affected the efficiency of the rehabilitated cracked aluminum plate. Increasing patch width WP from 5 mm to 15 mm increases the peak load by 9.7 and 17.5%, respectively, if compared with the specimen without the patch. The efficiency of the GFRP patch in reducing the SIF increased as the number of layers increased, i.e. the maximum load was enhanced by 5%.Originality/valueThis study assessed repairing metallic structures using the chopped strand mat GFRP. Furthermore, it demonstrated the superiority of rectangular patches over semicircular ones, along with the benefit of using double patches for out-of-plane bending prevention and it emphasizes the detrimental effect of defects in the bonding area between the patch and the cracked component. This underlines the importance of proper surface preparation and bonding techniques for successful repair.Graphical abstract

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Section: Effect Of Single or Double Patchsupporting

confidence: 92%

“…It can be noted that using patches with two layers was more effective for repairing cracked aluminum plates, which led to an increase in the peak load and resistance the crack growth, the same observation obtained by Abd-Elhady et al . (2020) and Abdelmoumin et al . (2023).…”

Section: Resultsmentioning

confidence: 96%

Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Althahban,

Nowier,

El-Sagheer

et al. 2024

FEBE

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“…However, this method does not have the aforementioned properties in terms of building gradient camshaft, but also, capable of providing toughness to provide the camshaft from failure resulting from fracture. The current gradient manufacturing requires further studies to validate the properties and its likelihood of deploying its advantages into other applications [46] To this end, Chen et al [41] developed a 70Cr8Ni2Y alloy steel powder which was done to meet the requirement of the gradient alloys with adequate strength and toughness that will meet the requirement of the nuclear power camshaft via direct laser deposition method. Furthermore, the study considers 3-layer gradient structure of alloy samples with adequate strength and toughness via the laser deposition approach using the following variations70Cr8Ni2Y, 50Cr6Ni2Y and 12CrNi2Y alloy steel powder.…”

Section: Microstructures Of Alloy Steelmentioning

confidence: 99%

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Lawal,

Afolalu,

Jen

et al. 2024

SSP

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Alloy steel is known to be different from carbon steel due to the presence of the alloying element in varying compositions which is usually done for the purpose of modifying and improving the performance of the steel. However, a major problem with the alloy steel is that it usually exhibits different behavior in terms of the microstructures and the mechanical properties, especially, in sulphide environment. Thus, this study focused on the different microstructure of alloy steel and their performance in different environment with strong emphasis in sulphide environment. It was established in the study that a major problem of alloy steel in hydrogen sulphide environment is the sulphide stress cracking which is attributed to the presence of hydrogen and its absorption by the alloy steel. Hence, this study provides a potential guide and information on the capacity of the grades of alloy steel that can thrive in sulphide environment.

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“…En los sistemas de reparación es crítica una correcta definición de los defectos de la tubería, pues el diseño del laminado compuesto dependerá de la naturaleza, ubicación y dimensiones del defecto [4], [5]. Las reparaciones y rehabilitaciones con polímeros reforzados con fibras (FRP) ofrecen una alta relación resistencia a peso, excelente resistencia química a la corrosión, transparencia a radiación electromagnética, fuerte resistencia a la fatiga y gran versatilidad, siendo posible su instalación en tees, codos, tramos de tubería y componentes estáticos sometidos a presión, brindando la posibilidad de continuar con la operación del activo sin detener la producción, ofreciendo un servicio de reparación (restauración al nivel operativo) y rehabilitación (reconversión al nivel de diseño) [6].…”

Section: Introductionunclassified

Materiales, métodos y normativa para refuerzos de material compuesto en reparación de tuberías y equipos a presión

Leon-Becerra,

Hernandez-Salazar,

Corzo-Álvarez

2024

Rev. UIS ing.

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Debido a su alta resistencia a la corrosión, la fatiga y el bajo peso específico, los materiales compuestos se han desarrollado como una buena alternativa para reemplazar los materiales tradicionales. Se utilizan en el transporte de fluidos, en la rehabilitación y reparación de sistemas a presión en operación y son relativamente fáciles de usar en el sector industrial. Este trabajo muestra el estado del arte en los sistemas de reparación que utilizan reforzamiento de materiales compuestos. Primero, clasifica los sistemas, mostrando los sistemas que están disponibles en el mercado y los compara en términos de sus propiedades mecánicas y procesos de aplicación. En un segundo momento, se presentan y comparan las normas de diseño ASME PCC2 e ISO 24817. Finalmente, se muestran las técnicas experimentales y de simulación utilizadas para su estudio. El trabajo concluye mostrando las posibilidades futuras y desafíos que enfrentan los sistemas de reparación de compuestos en su adopción.

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Strength prediction of a steel pipe having a hemi-ellipsoidal corrosion defect repaired by GFRP composite patch using artificial neural network

Cited by 12 publications

References 37 publications

Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Experimental and numerical analysis of the behavior of rehabilitated aluminum structures using chopped strand mat GFRP composite patches

Emerging Behaviour of Alloy Steel Microstructure in Hydrogen Sulphide Environment - A Review

Materiales, métodos y normativa para refuerzos de material compuesto en reparación de tuberías y equipos a presión

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