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Effects of fatigue damage on the high strain-rate performance of DH36 steel
Citation
Clayton, DK and Saleh, M and Mitchell Ferguson, T and Ojeda, R, Effects of fatigue damage on the high strain-rate performance of DH36 steel, Ships and Offshore Structures, 17, (3) pp. 646-660. ISSN 1744-5302 (2021) [Refereed Article]
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Copyright 2021 Informa UK Limited, trading as Taylor & Francis Group
DOI: doi:10.1080/17445302.2020.1861707
Abstract
An experimental investigation has been undertaken to determine the effects of fatigue on the high strain-rate material properties of high-performance steel used in modern naval vessel structures. A novel methodology to conduct tensile testing at low and high strain-rates on fatigued specimens was developed. A bespoke Split Hopkinson’s Tension Bar clamping arrangement was designed to undertake the necessary high strain-rate testing of flat dog-bone specimens. Analysis of the microstructure of the specimens was performed alongside a comparison on the strain-rate sensitivity of the tested DH36 steel against other literature sources. Testing revealed no statistically significant effect of high cycle fatigue at high strain-rate as determined by a two-sample t-test, but revealed a possible effect on quasi-static material properties. The findings of this novel comparison between fatigued and virgin material properties of shipbuilding steel provides decision-makers and researchers with an understanding on the effect of fatigue on high strain-rate material properties.
Item Details
Item Type: | Refereed Article |
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Keywords: | fatigue, blast loading, SHTB, naval steel, DH36 |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Naval architecture |
Objective Division: | Defence |
Objective Group: | Defence |
Objective Field: | Maritime |
UTAS Author: | Clayton, DK (Mr Daniel Clayton) |
UTAS Author: | Mitchell Ferguson, T (Mr Thomas Mitchell Ferguson) |
UTAS Author: | Ojeda, R (Dr Roberto Ojeda Rabanal) |
ID Code: | 146301 |
Year Published: | 2021 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2021-08-30 |
Last Modified: | 2022-05-13 |
Downloads: | 0 |
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