PSI - Issue 42

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

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ScienceDirect

Procedia Structural Integrity 42 (2022) 441–448

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the 23 European Conference on Fracture – ECF23 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23 Keywords: FEA, semi-elliptical surface crack, structure integrity assessment Th FEA res lts are used to validate the Lei and Budden l mit loa solutions, principally via produc ion of R6 Option 3 failure assessment curves (FAC ) and comp ison wi h t R6 Opt on 1 and Option 2 FACs. Comparison with ot r vai able limit load solut ons in literature has also been carried out. The ap r aims to provide ome improved guidelines for the safe life assessment margins regarding to structural integrity of aged components in energy industries. © 2020 The Authors. Published by Elsevier B.V. This is an ope acces article under the CC BY-N -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) P er-review und r responsibility of 23 European Conference on Fracture - ECF23 Keywords: FEA, semi-elliptical surface crack, structure integrity assessment Abstract This paper summarizes results of limit load solutions for plates containing semi-elliptical surface cracks subject to complex loadings, to include biaxial tension and positive cross-thickness bending (crack opening moment). The elastic-plastic J-integral data have been determined from a series of cracked body finite element analyses (FEA) incorporating various plate and crack geometries, loading combinations, and elastic and elastic-plastic material models. The FEA results are used to validate the Lei and Budden limit load solutions, principally via production of R6 Option 3 failure assessment curves (FACs) and comparison with the R6 Option 1 and Option 2 FACs. Comparison with other available limit load solutions in literature has also been carried out. The paper aims to provide some improved guidelines for the safe life assessment margins regarding to structural integrity of aged components in energy industries. Abstract This paper summarizes results of limit l ad solutions for plates containing semi- lliptical surface cracks subject to complex loadings, to includ biaxial tension and p sitive cross-thickness bending (cr ck opening moment). The el stic-plas ic J-integral data hav been determined fr m a seri s of crack d body finite el ment analyses (FEA) incorporating various plate and crack geometries, loading combinations, and elastic and elastic-plastic material models. 23 European Conference on Fracture - ECF23 Structural Integrity Assessment of Plates Containing Semi-elliptical 23 European Conference on Fracture - ECF23 Structural Integrity Assessment of Plates Containing Semi-elliptical Surface Cracks: Finite Element Fracture Analyses Shiwen Wang a *, Paul A Shard a , Antony M Hurst a and Yuebao Lei b a Engineering Analysis Services Limited, 2 Edward Court, George Richards Way, Altrincham, WA14 5GL, UK b EDF Energy Nuclear Generation Ltd., Barnett Way, Barnwood, Gloucester, GL4 3RS, UK Surface Cracks: Finite Element Fracture Analyses Shiwen Wang a *, Paul A Shard a , Antony M Hurst a and Yuebao Lei b a Engineering Analysis Services Limited, 2 Edward Cour , George Richards Way, Alt incham, WA14 5GL, UK b EDF Energy Nuclear Generation Ltd., Barnett Way, Barnwood, Gloucester, GL4 3RS, UK

* Corresponding author. Tel.: +44-161-923-0070; fax: +44-161-923-0070. E-mail address: shiwen_wang@yahoo.co.uk * Correspon ing author. Tel.: +44-161-923-0070; fax: +44-161-923-0070. E-mail address: shiwen_wang@yahoo.co.uk

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23 2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of 23 European Conference on Fracture - ECF23

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the 23 European Conference on Fracture – ECF23 10.1016/j.prostr.2022.12.056