Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method
Quasi-static tensile tests with smooth round bar and axisymmetric notched tensile specimens have been performed to study the low-temperature effect on the fracture locus of a 420-MPa structural steel. Combined with a digital high-speed camera and a 2-plane mirror system, specimen deformation was rec...
Published in: | Fatigue & Fracture of Engineering Materials & Structures |
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Online Access: | http://hdl.handle.net/11250/2577677 https://doi.org/10.1111/ffe.12803 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2577677 2023-05-15T15:08:52+02:00 Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method Tu, Shengwen Ren, Xiaobo Kristensen, Tore Andre He, Jianying Zhang, Zhiliang 2018 http://hdl.handle.net/11250/2577677 https://doi.org/10.1111/ffe.12803 eng eng Wiley Norges forskningsråd: 228513 Fatigue & Fracture of Engineering Materials & Structures. 2018, 41 (8), 1649-1661. urn:issn:8756-758X http://hdl.handle.net/11250/2577677 https://doi.org/10.1111/ffe.12803 cristin:1571414 1649-1661 41 Fatigue & Fracture of Engineering Materials & Structures 8 Journal article 2018 ftntnutrondheimi https://doi.org/10.1111/ffe.12803 2019-09-17T06:54:32Z Quasi-static tensile tests with smooth round bar and axisymmetric notched tensile specimens have been performed to study the low-temperature effect on the fracture locus of a 420-MPa structural steel. Combined with a digital high-speed camera and a 2-plane mirror system, specimen deformation was recorded in 2 orthogonal planes. Pictures taken were then analysed with the edge tracing method to calculate the minimum cross-section diameter reduction of the necked/notched specimen. Obvious temperature effect was observed on the load-strain curves for smooth and notched specimens. Both the strength and strain hardening characterized by the strain at maximum load increase with temperature decrease down to −60°C. Somewhat unexpected, the fracture strains (ductility) of both smooth and notched specimens at temperatures down to −60°C do not deteriorate, compared with those at room temperature. Combined with numerical analyses, it shows that the effect of low temperatures (down to −60°C) on fracture locus is insignificant. These findings shed new light on material selection for Arctic operation. submittedVersion This is the pre-peer reviewed version of an article, which has been published in final form at [https://doi.org/10.1111/ffe.12803]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Article in Journal/Newspaper Arctic NTNU Open Archive (Norwegian University of Science and Technology) Arctic Fatigue & Fracture of Engineering Materials & Structures 41 8 1649 1661 |
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Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
Quasi-static tensile tests with smooth round bar and axisymmetric notched tensile specimens have been performed to study the low-temperature effect on the fracture locus of a 420-MPa structural steel. Combined with a digital high-speed camera and a 2-plane mirror system, specimen deformation was recorded in 2 orthogonal planes. Pictures taken were then analysed with the edge tracing method to calculate the minimum cross-section diameter reduction of the necked/notched specimen. Obvious temperature effect was observed on the load-strain curves for smooth and notched specimens. Both the strength and strain hardening characterized by the strain at maximum load increase with temperature decrease down to −60°C. Somewhat unexpected, the fracture strains (ductility) of both smooth and notched specimens at temperatures down to −60°C do not deteriorate, compared with those at room temperature. Combined with numerical analyses, it shows that the effect of low temperatures (down to −60°C) on fracture locus is insignificant. These findings shed new light on material selection for Arctic operation. submittedVersion This is the pre-peer reviewed version of an article, which has been published in final form at [https://doi.org/10.1111/ffe.12803]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
format |
Article in Journal/Newspaper |
author |
Tu, Shengwen Ren, Xiaobo Kristensen, Tore Andre He, Jianying Zhang, Zhiliang |
spellingShingle |
Tu, Shengwen Ren, Xiaobo Kristensen, Tore Andre He, Jianying Zhang, Zhiliang Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
author_facet |
Tu, Shengwen Ren, Xiaobo Kristensen, Tore Andre He, Jianying Zhang, Zhiliang |
author_sort |
Tu, Shengwen |
title |
Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
title_short |
Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
title_full |
Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
title_fullStr |
Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
title_full_unstemmed |
Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method |
title_sort |
study of low-temperature effect on the fracture locus of a 420-mpa structural steel with the edge tracing method |
publisher |
Wiley |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2577677 https://doi.org/10.1111/ffe.12803 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
1649-1661 41 Fatigue & Fracture of Engineering Materials & Structures 8 |
op_relation |
Norges forskningsråd: 228513 Fatigue & Fracture of Engineering Materials & Structures. 2018, 41 (8), 1649-1661. urn:issn:8756-758X http://hdl.handle.net/11250/2577677 https://doi.org/10.1111/ffe.12803 cristin:1571414 |
op_doi |
https://doi.org/10.1111/ffe.12803 |
container_title |
Fatigue & Fracture of Engineering Materials & Structures |
container_volume |
41 |
container_issue |
8 |
container_start_page |
1649 |
op_container_end_page |
1661 |
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1766340141316571136 |