PSI - Issue 17

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

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

ScienceDirect

Procedia Structural Integrity 17 (2019) 464–471

ICSI 2019 The 3rd International Conference on Structural Integrity Towards a Generalized Methodology for Structural Integrity Calculations of Large-Scale Pressure Systems Tamás Fekete* Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege M. str. 29-33, H-1121 Budapest, Hungary Abstract A medium-term research is currently running at MTA EK with the objective to shed light on the potential role of modern Thermodynamics in Structural Integrity calculations of large-scale pressure systems. Many aspects of the prevailing Structural Integrity analysis methodologies have been evaluated, in order to identify strong and weak points of Structural Integrity in this day and age. Despite the fact that in the last decades, a large number of increasingly complex engineering structures have been built and operated safely on the basis of traditional engineering approaches – widely applied in Structural Integrity assessments – , there exist inherent problems even at the theoretical foundations of the methodologies. Generalized models of Structural Integrity, based on modern Thermodynamics, seem to be a promising approach to build a sound foundation for future Structural Integrity computations. ICSI 2019 The 3rd International Conference on Structural Integrity Towards a Generalized Methodology for Structural Integrity Calculations of Large-Scale Pressure Systems Tamás Fekete* Centre for Energy Research, Hungarian Academy of Sciences, Konkoly-Thege M. str. 29-33, H-1121 Budapest, Hungary Abstract A medium-term research is currently running at MTA EK with the objective to shed light on the potential role of modern Thermodynamics in Structural Integrity calculations of large-scale pressure systems. Many aspects of the prevailing Structural Integrity analysis methodologies have been evaluated, in order to identify strong and weak points of Structural Integrity in this day and age. Despite the fact that in the last decades, a large number of increasingly complex engineering structures have been built and operated safely on the basis of traditional engineering approaches – widely applied in Structural Integrity assessments – , there exist inherent problems even at the theoretical foundations of the methodologies. Generalized models of Structural Integrity, based on modern Thermodynamics, seem to be a promising approach to build a sound foundation for future Structural Integrity computations.

© 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

Keywords: Structural Integrity, Large-Scale Pressure Systems, Methodology, Thermodynamics, Ageing, Generalized Fracture Mechanics Keywords: Structural Integrity, Large-Scale Pressure Systems, Methodology, Thermodynamics, Ageing, Generalized Fracture Mechanics

1. Introduction 1. Introduction

Structural Integrity calculations are critical parts of the design and certification procedures, as well as safety analyses of large-scale pressure systems. These kinds of apparatus are widely used in the electric power generation industry and in the petrol chemical industry; Structural Integrity calculations are carried out for the demonstration of their designed service lifetime , and for the assessments of their technically allowed lifetime. These systems have large Structural Integrity calculations are critical parts of the design and certification procedures, as well as safety analyses of large-scale pressure systems. These kinds of apparatus are widely used in the electric power generation industry and in the petrol chemical industry; Structural Integrity calculations are carried out for the demonstration of their designed service lifetime , and for the assessments of their technically allowed lifetime. These systems have large

* Corresponding author. Tel.: +36-1-392 2222/3403; fax: +36-1-395 9293. E-mail address: tamas.fekete@energia.mta.hu * Corresponding author. Tel.: +36-1-392 2222/3403; fax: +36-1-395 9293. E-mail address: tamas.fekete@energia.mta.hu

2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers.

2452-3216  2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ICSI 2019 organizers. 10.1016/j.prostr.2019.08.061