Stress Intensity Factor of Semielliptical Surface Crack in Internally Pressurized Hollow Cylinder—A Comparison between BS 7910 and API 579/ASME FFS-1 Solutions

Coelho, Gabriel Bandeira; Silva, Antônio Augusto Moura da; Santos, Marco Antônio dos; Lima, Antônio Gilson Barbosa de; Santos, Neilor Cesar dos

doi:10.3390/ma12071042

Cited by 8 publications

(6 citation statements)

References 11 publications

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“…As shown in Appendix A. Likewise, as shown in Appendix A.3, Coelho et al [39] compared their FEA results of stress intensity factors for a wide range of surface crack sizes (0.25 < a/t < 0.8) with API 579 and BS 7910 estimates. They obtained the same conclusions made by Tiku et al [52], that is, 1) API 579 tabular data agree with the FEA results for all crack sizes, and 2) BS 7910 overestimates the FEA results for deep cracks with a/t > 0.5.…”

Section: Comparison Of Stress Intensity Factor Solutions For Surface ...mentioning

confidence: 99%

“…Recently, Coelho et al [39] performed 3D FEA calculations of stress intensity factors for axial outside surface cracks in a pressurized cylinder made of a structural steel using four FEA models with a mesh size h=12 mm, 10 mm, 8 mm, or 6 mm. The cylinder has an inside radius of 1139.75 mm (44.87 in.)…”

Section: A3 Comparison Of Api 579 and Bs 7910 Stress Intensity Factor...mentioning

confidence: 99%

“…Delliou and Chapuliot [38] made a detailed comparison of the tabular data of the K factors in API 579 with those obtained in French pressure vessel code RSE-M, and showed that the K factor solutions in both API and RSE-M standards agree satisfactorily. Recently, Ceelho et al [39] performed a case study of surface cracks in cylinders using the advanced 3D FEA simulations, and showed that the tabular data of the K factors in API 579 are generally accurate and adequate for use in the FFS evaluation of pressure vessels. Recently, Li and Hasegawa [40,41] further obtained the FEA results of the K factors for surface cracks in cylinders with high aspect ratios that are not considered in API 579.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fatigue Life Models for Pipelines Containing Dents and Gouges

Zhu¹,

WIERSMA²

2022

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This report is furnished to Pipeline Research Council International, Inc. (PRCI) under the terms of PRCI contract PR-244-213803, between PRCI and Savannah River National Laboratory (SRNL) managed by Battelle Savannah River Alliance (BSRA). The contents of this report are published as received from SRNL. The opinions, findings, and conclusions expressed in the report are those of the authors and not necessarily those of PRCI, its member companies, or their representatives. Publication and dissemination of this report by PRCI should not be considered an endorsement by PRCI or SRNL or BSRA, or the accuracy or validity of any opinions, findings, or conclusions expressed herein.In publishing this report, PRCI and SRNL (or BSRA) make no warranty or representation, expressed or implied, with respect to the accuracy, completeness, usefulness, or fitness for purpose of the information contained herein, or that the use of any information, method, process, or apparatus disclosed in this report may not infringe on privately owned rights. PRCI and SRNL assume no liability with respect to the use of, or for damages resulting from the use of, any information, method, process, or apparatus disclosed in this report. By accepting the report and utilizing it, you agree to waive any and all claims you may have, resulting from your voluntary use of the report, against PRCI and SRNL.

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Section: Comparison Of Stress Intensity Factor Solutions For Surface ...mentioning

confidence: 99%

Section: A3 Comparison Of Api 579 and Bs 7910 Stress Intensity Factor...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fatigue Life Models for Pipelines Containing Dents and Gouges

Zhu¹,

WIERSMA²

2022

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“…Delliou and Chapuliot [12] compared the tabular data of K in API 579 with those used in French pressure vessel code RSE-M, and showed that the K solutions in both standards agree satisfactorily. Ceelho et al [13] performed the case study of surface cracks in cylinders using the advanced 3D FEA simulations, and showed that the tabular data of K in API 579 are generally accurate and adequate to use for the FFS evaluation of pressure vessels. Recently, Li and Hasegawa [14,15] further obtained the FEA results of K for surface cracks in cylinders with high aspect ratios that are not considered in API 579.…”

Section: Introductionmentioning

confidence: 99%

Data-Driven Stress Intensity Factor Solutions for Axial Outside Surface Cracks in Thick-Wall Cylinders

Zhu¹,

Duncan²,

Zhu³

2022

Volume 4A: Materials and Fabrication

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Crack assessment relies on the linear elastic or elastic-plastic fracture mechanics that requires calculation of stress intensity factor, K, in the fitness for service codes, such as API 579 and ASME BPVC Section XI. For a surface crack in a cylinder, the K calculation becomes calculating the influence coefficients G0 and G1 of K in those codes. API 579 provided accurate tabular data of G0 and G1 for selected cylinder sizes (t/Ri), crack aspect ratios (a/c), crack depths (a/t), and crack tip locations. Recently, the curve-fit solutions of G0 and G1 were obtained for surface cracks at the deepest and surface points. For an arbitrary cylinder size, however, three-parameter interpolations are still needed to estimate the G0 and G1. To avoid performing the complex interpolation, this paper adopts the state-of-the-art machine learning technology to develop data-driven K solutions based on the tabular data of G0 and G1 given in API 579 for axial outside semi-elliptical surface cracks in thick-wall cylinders at the deepest and surface points. The machine learning method utilizes an artificial neural network (ANN), activation function, and optimal learning algorithm to learn and to determine G0 and G1 as a function of the cylinder size (t/Ri), aspect ratio (a/c), and crack depth (a/t) for axial outside surface cracks at the deepest and surface points. The proposed data-driven solutions of G0 and G1 are validated by available curve-fit solutions for the axial outside surface cracks.

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“…Elamvazhudi and Gopalakannan 16 carried out fatigue growth of a semielliptical crack on the outer surface of a butt‐welded joint using FEM. El Fakkoussi et al 17 and Coêlho et al 18 computed the SIF for an external longitudinal semielliptic crack in a cylinder using FEM. Shim et al 19 and Zareei and Nabavi 20,21 extracted a weight function (WF) for internal semielliptical circumferential cracks to determine SIFs for various loading states, including residual welding stress.…”

Section: Introductionmentioning

confidence: 99%

Weight function for an external circumferential semielliptical crack in a cylinder

Nabavi

Torbati

Jamal‐Omidi

2020

Fatigue Fract Eng Mat Struct

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In this paper, the weight function was extracted at the deepest point of a semielliptical circumferential crack. The crack is assumed to exist on the outer surface of the cylinder. For this purpose, the three-dimensional finite element method was accomplished to specify two reference loads, which are indispensable for determining the weight function. The verification study confirms the accuracy of the derived weight function under prescribed mechanical loading on the crack surfaces. There is consistency among the solution results compared with those in the literature. The second part describes the application of the weight function for the thermal boundary conditions. Steady-state thermal stress intensity factors are demonstrated using the weight function and presented as a closed-form solution. The results were compared with the finite element data on the special case of thermal loading, and good agreement is obtained.cylinder, external semielliptical circumferential crack, steady-state thermal stress, stress intensity factors, weight function method

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Stress Intensity Factor of Semielliptical Surface Crack in Internally Pressurized Hollow Cylinder—A Comparison between BS 7910 and API 579/ASME FFS-1 Solutions

Cited by 8 publications

References 11 publications

Fatigue Life Models for Pipelines Containing Dents and Gouges

Fatigue Life Models for Pipelines Containing Dents and Gouges

Data-Driven Stress Intensity Factor Solutions for Axial Outside Surface Cracks in Thick-Wall Cylinders

Weight function for an external circumferential semielliptical crack in a cylinder

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