Abstract
The probability of failure (POF) of a structure is dependent on design, manufacture, inspection, operation and human factors. The POF may be determined on the basis of direct observation or theoretical methods or some mixture of both. In this study, two methods are used to estimate the probability of failure of pressure vessels: (1) a ‘top-down’ method based on a mixture of failure statistics and engineering judgement and (2) a ‘bottom-up’ method based on fracture mechanics/engineering critical assessment (ECA). Using pressure vessel design codes as an example, this work also demonstrates whether and how the two methods can be integrated.
This is a preview of subscription content, log in via an institution to check access.
(Copyright © TWI)
(Copyright © TWI)
(Copyright © TWI)
(Copyright © TWI)
(Copyright © TWI)
(Copyright © TWI)
Similar content being viewed by others
References
Hadley I, 2020: ‘Integrating diverse approaches to the reliability of engineering structures: background and example calculations’, TWI Member Report 1136/2020
API, 2016a: API RP 580 ‘Risk-based inspection’
API, 2016b: API RP 581 ‘Risk-based inspection methodology’
Pittiglio P (2014) Bragatto P and delle Site C, 2014: ‘Updated failure rates and risk management in process industries.’ Energy Procedia 45(1364–1371):1876–6102. https://doi.org/10.1016/j.egypro.2014.01.143
BSI, 2019: BS 7910 ‘Guide to methods for assessing the acceptability of flaws in metallic structures’
EDF Energy, 2001: R6 ‘Assessment of the integrity of structures containing defects’, Revision 4, 2000, as amended
API, 2016c: API 579–1/ASME FFS-1 (2016): ‘Fitness-for-service’
Hadley I, Kouzoumis K and Janin Y J, 2020: ‘Validation of BS 7910:2013 and R6 fracture assessment procedures: summary report, including treatment of plastic collapse, weld strength mismatch and probabilistic data’, TWI Industrial Member Report 1125/2020
BSI, 2018: PD 5500:2018+A2:2019 ‘Specification for unfired fusion welded pressure vessels’
BSI, 2014a: BS EN 13445–1:2014+A2:2018 ‘Unfired pressure vessels’
Hadley I, Garwood SJ (2019) Prevention of brittle fracture in pressure vessels: the design rules of EN 13445 and BSI PD 5500. IJPVP 169:1–15. https://doi.org/10.1016/j.ijpvp.2018.11.010
BSI, 2017: BS EN 10028–2:2017 ‘Flat products made of steels for pressure purposes – Part 2: non-alloy and alloy steels with specified elevated temperature properties’
Acknowledgements
The work described in this paper was part of the activities reported in TWI Member Report 1136/2020 (funded by TWI’s Core Research Programme) by Professor Isabel Hadley.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no competing interests.
Additional information
Publisher's note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Recommended for publication by Commission XI—Pressure Vessels, Boilers, and Pipelines.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Janin, Y.J., Hadley, I. Probabilistic fracture mechanics approach to investigate the difference in Charpy requirements for pressure vessels. Weld World 67, 1209–1213 (2023). https://doi.org/10.1007/s40194-023-01494-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40194-023-01494-7