Crack growth monitoring in corrosion-fatigue tests using back face strain measurement technique
Mehmanparast, Ali and Albani, Pietro and Igwemezie, Victor (2018) Crack growth monitoring in corrosion-fatigue tests using back face strain measurement technique. Procedia Structural Integrity, 13. pp. 261-266. ISSN 2452-3216 (https://doi.org/10.1016/j.prostr.2018.12.044)
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Abstract
Corrosion-fatigue crack growth tests are known to be considerably time consuming, particularly due to low loading frequencies which often result in several months of testing. This study focuses on development of a material and load dependent numerical model which correlates back face strains with crack lengths for standard compact tension, C(T), specimen geometry. To validate numerical predictions, calibration fatigue crack growth tests were conducted in air on C(T) specimens made of S355 steel, which is widely employed in offshore wind industry. The results obtained from these tests at different load levels have been compared with those predicted from the numerical model. Characterization of isotropic-kinematic hardening behaviour for the material adopted was carried out using the data available in the literature. The numerical model presented in this work has proven to generate accurate estimates of crack length in corrosion-fatigue tests. This model can be used in future experimental test program on S355 steel without needing to obtain experimental correlations between crack length and back face strains from calibration tests performed in air.
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Item type: Article ID code: 79334 Dates: DateEvent31 December 2018Published31 December 2018Published Online28 March 2018AcceptedSubjects: Technology > Hydraulic engineering. Ocean engineering
Technology > Mechanical engineering and machineryDepartment: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 27 Jan 2022 13:55 Last modified: 07 Aug 2024 02:02 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/79334