A miniaturized thin-plate low cycle fatigue test method at elevated temperature

Li, Ming; Maskill, Shane; Wen, Zhixun; Yue, Zhufeng; Sun, Wei

Abstract

This study aims to develop a high-temperature low cycle fatigue test method using a nonstandard miniature thin-plate specimen in order to characterize the cyclic viscoplasticity behavior of a component material. For demonstration, fully reversed strain-range controlled low cycle fatigue and creep-fatigue tests at 600°C have been performed for a martensitic steel using standard-sized full-scale specimens and miniaturized thin-plate specimens, respectively. Because the displacement is not directly measured from the uniform gauge section of the miniaturized specimen, a geometry-dependent scaling factor is obtained and used to convert the uniaxial strain. The results obtained are shown that the miniaturized test method developed in this work has exhibited a clear possibility to produce comparable low cycle fatigue data with those that are normally obtained by conventional standard specimen tests.

Citation

Li, M., Maskill, S., Wen, Z., Yue, Z., & Sun, W. (2022). A miniaturized thin-plate low cycle fatigue test method at elevated temperature. Fatigue and Fracture of Engineering Materials and Structures, 45(5), 1361-1378. https://doi.org/10.1111/ffe.13665

• Journal Article Type: Article
• Acceptance Date: Jan 24, 2022
• Online Publication Date: Feb 7, 2022
• Publication Date: 2022-05
• Deposit Date: Feb 9, 2022
• Publicly Available Date: Feb 9, 2022
• Journal: Fatigue and Fracture of Engineering Materials and Structures
• Print ISSN: 8756-758X
• Electronic ISSN: 1460-2695
• Peer Reviewed: Peer Reviewed
• Volume: 45
• Issue: 5
• Pages: 1361-1378
• DOI: https://doi.org/10.1111/ffe.13665
• Public URL: https://nottingham-repository.worktribe.com/output/7412869
• Publisher URL: https://onlinelibrary.wiley.com/doi/full/10.1111/ffe.13665