PSI - Issue 14

Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2018) 000–000

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 14 (2019) 758–773

2nd International Conference on Structural Integrity and Exhibition 2018 On the fracture mechanics based development of cleavage fracture resistance criteria for the materials of large-size welded structures Filin V.Yu. a , Ilyin A.V. a * a NRC Kurchatov institute - CRISM Prometey, Saint-Petersburg, 191015, Russia Abstract Critical large-size structures are commonly made of low-alloyed steels due to their outstanding strength to weight ratio, suitable weldability and reparability for a reasonable price. Recent development of Russian sea shelf takes place in conditions of low climatic temperatures, ice and earthquake hazard. The increased operational parameters as loads, pressure, pipe diameters and so on combined with longer distance from coastal bases highly increase the engineering responsibility. Safe operation of large-size welded structures is a main aim of the developed procedures and criteria. Improved procedures are suggested to determine allowable flaw sizes taking into account their probable propagation under operational loads. Flaw size is inevitably related to the applicable procedure, criteria and amount of nondestructive inspection. The study highlights the principles for welded structures structural integrity assessment, peculiarities of test methods to evaluate the fracture toughness and ductile-to-brittle transition temperatures as well as examples of their practical application and offer to take part in the development of related standard documents. 2nd International Conference on Structural Integrity and Exhibition 2018 On the fractur mechanics based d velopment of cleavage fracture resistance criteria fo the materials of large-size welded structures Filin V.Yu. a , Ilyin A.V. a * a NRC Kurchatov institute - CRISM Prometey, Saint-Petersburg, 191015, Russia Abstr ct Critical large-size structures ar commonly m e of low-alloyed st els due to their outstanding strength to weight ratio, suitable weldabil ty and reparability for a reasonable price. Recent development of Russian s a shelf takes place in conditions of low climatic tempe atures, ice a d earthquake hazard. The in reas d operational parameters as l ads, pressure, pipe diameters and so on combined with longer distance from coastal bases highly increase th engineering responsibility. Safe oper tion of large-siz welded structur s is a main im of the developed procedures and criteria. Improved procedures are suggested to determine allowable flaw sizes taking i to ac ount h ir probable pr pagation under operational loads. Flaw size is inevitably rela ed to the applicable procedure, crit ria and amount of nondestructive inspection. The study highlights the princi les for w lded structures structural integrity assessment, peculiarities of test methods to evaluate the fracture toughness and ductile-to-brittle transition temperatures as well as examples of their practical application and offer to take part in the development of related standard documents. © 2019 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/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. © 2018 Filin V.Yu, Ilyin A.V. 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/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. © 2018 Filin V.Yu, Ilyin A.V. Published y 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/) S lection and pee -review under responsibility of Peer-revi w under responsibility of the SICE 2018 organizers. Keywords: EPFM fracture criteria; cold resistance; welded structures; flaw admissibility.

Keywords: EPFM fracture criteria; cold resistance; welded structures; flaw admissibility.

* Corresponding author. Tel.: +7-812-274-18-22; fax: +7-812-710-37-56. E-mail address: mail@crism.ru

2452-3216 © 2018 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/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. 2452-3216 © 2018 Th Authors. Published by E sevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. * Corresponding author. Tel.: +7-812-274-18-22; fax: +7-812-710-37-56. E mail address: mail@crism.ru

2452-3216  2019 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/) Selection and peer-review under responsibility of Peer-review under responsibility of the SICE 2018 organizers. 10.1016/j.prostr.2019.07.054