PSI - Issue 37

ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceD rect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 37 (2022) 779–787

© 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 Pedro Miguel Guimaraes Pires Moreira Abstract At Centre for Energy Research in Budapest, Hungary, research is underway to develop sound fundaments for future Structural Integrity Calculations of Large-Scale Pressure Systems. Many existing Structural Integrity Calculation methodologies have been revised. Despite the fact that many complex Large-Scale Pressure Systems have been built and operated over the decades based on the tried, standard-based engineering approaches, it has emerged that there are inherent problems even at the core of these methodologies. Generalised concept to Structural Integrity seems to be a promising approach to lay solid fundaments for future Structural Integrity Calculations methodologies for Large-Scale Pressure Systems. The paper outlines the structure of the framework, shows how philosophical considerations can be used to pave the way for a sounder scientific approach to Structural Integrity of Large-Scale Pressure Systems, and finally presents the base of an enhanced, modern thermodynamics-based model. © 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) ICSI 2021 The 4th International Conference on Structural Integrity The Fundaments of Structural Integrity of Large-Scale Pressure Systems Fekete, Tamás a * a Centre for Energy Research, Konkoly-Thege M. str. 29-33., H-1121 Budapest, Hungary Abstract At Centre for Energy Research in Budapest, Hungary, research is underway to develop sound fundaments for future Structural Integrity Calculations of Large-Scale Pressure Systems. Many exi ti g Structural Integrity Calculation methodologies have been revised. Despite he fact th t many complex Large-Scale Pressure Systems have bee buil and operated ov r the decades based o the tried, standard-b sed engineering approach s, it has me ged that t ere ar inherent pr blems even at th core of these m thodologies. Generalised co c pt to Structural In egrity se ms to be a promising approach to lay solid fundaments for futur Structural Integrity C lculati s me hodologies for Large-Scale Pressure Sy tems. The paper outlines the structure of th framework, shows how philos phical c nsiderations can b used to pave the way for a sounder scien ific approach to Structural Integrity of Large-Scale Pressure Systems, and finally pres nts the base of an enhanced, modern thermodyn mics-based model. © 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 u der re ponsibility of Pedro Miguel Guimara s Pires Moreira K ywords: Str ctural Integrity; Large-Scale Pressure Systems; Methodology; 1. Introduction It is an age-old human experience that any man-made physical system made of solid materials – e.g., tools, equipment, infrastruct re – is only fit for its intended servic for a limited ti e span. It i a co mon experience that the load-bearing parts of the e systems, after some times are no longer able to withstand the sa e l ads as th y would have when new. This phenomenon i particularly significa t f r systems that are subject to overload of varying ICSI 2021 The 4th International Conference on Structural Integrity The Fundaments of Structural Integrity of Large-Scale Pressure Systems Fekete, Tamás a * a Centre for Energy Research, Konkoly-Thege M. str. 29-33., H-1121 Budapest, Hungary Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Keywords: Structural Integrity; Large-Scale Pressure Systems; Methodology; 1. Introduction It is an age-old human experience that any man-made physical system made of solid materials – e.g., tools, equipment, infrastructure – is only fit for its intended service for a limited time span. It is a common experience that the load-bearing parts of these systems, after some times are no longer able to withstand the same loads as they would have when new. This phenomenon is particularly significant for systems that are subject to overloads of varying

* Corresponding author. Tel.: +36-1-392 2222/3403; fax: +36-1-395 9152. E-mail address: fekete.tamas@ek-cer.hu * Corresponding author. Tel.: +36-1-392 2222/3403; fax: +36-1-395 9152. E-mail address: fekete.tamas@ek-cer.hu

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 Pedro Miguel Guimaraes Pires Moreira 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 u der responsibility of Pedro Miguel Guimara s Pires Moreira

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 Pedro Miguel Guimaraes Pires Moreira 10.1016/j.prostr.2022.02.009