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The role of hardness on condition monitoring and lifing for high temperature power plant structural risk management

Morris, A.; Cacciapuoti, B.; Sun, W.

Authors

A. Morris

B. Cacciapuoti

W. Sun



Abstract

In this work, the use of hardness data in a novel predictive lifing model is explored. This study provides for the first time large amounts of site hardness data acquired during successive outages on an ageing coal fired power plant and draws conclusions regarding interpretation of these data in accordance with current practice, which is included in a case study. A novel, phenomenological relationship between room temperature hardness and creep data, obtained by uniaxial creep and impression creep tests, has been found and used for an innovative lifing approach that includes hardness data in a creep damage model. The latter is discussed with a description of how it could be practically implemented and validated in-service.

Citation

Morris, A., Cacciapuoti, B., & Sun, W. (2019). The role of hardness on condition monitoring and lifing for high temperature power plant structural risk management. Measurement, 131, 501-512. doi:10.1016/j.measurement.2018.09.002

Journal Article Type Article
Acceptance Date Sep 1, 2018
Online Publication Date Sep 3, 2018
Publication Date Jan 16, 2019
Deposit Date Oct 8, 2018
Publicly Available Date Sep 4, 2019
Journal Measurement
Print ISSN 1536-6367
Publisher Taylor & Francis (Routledge)
Peer Reviewed Peer Reviewed
Volume 131
Pages 501-512
DOI https://doi.org/10.1016/j.measurement.2018.09.002
Keywords Hardness; Creep; Replica; Damage model; Condition monitoring
Public URL https://nottingham-repository.worktribe.com/output/1150948
Publisher URL https://www.sciencedirect.com/science/article/pii/S0263224118308303

Files

MEAS-D-18-01717R1 (2.6 Mb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/





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