Home Journals Articles Updates About
CN
image
收藏切换
Effect of different stress ratios on fatigue crack growth rate of HTS-A steel at low temperature and prediction for crack growth
收藏切换
PDF
Guang-en LUO1, Jia-qi LIU1, Jin-hui JIANG2
Journal of Ship Mechanics | 2025, 29(11) : 1746 - 1756
Less
收藏切换
Journal of Ship Mechanics | 2025, 29(11): 1746-1756
• Structural Mechanic •
Effect of different stress ratios on fatigue crack growth rate of HTS-A steel at low temperature and prediction for crack growth
Full
Guang-en LUO1, Jia-qi LIU1, Jin-hui JIANG2
Affiliations
  • 1.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
  • 2.State Key Laboratory of Navigation and Safety Technology/Key Laboratory of Marine Technology Ministry of Communications, Shanghai Ship and Shipping Research Institute Co. Ltd., Shanghai 200135, China
doi: 10.3969/j.issn.1007-7294.2025.11.008
Outline
收藏切换

In order to study the effect of different stress ratios on the fatigue crack growth of HTS-A steel in low temperature environment, low-temperature fatigue crack growth tests of HTS-A steel CT specimens at stress ratios of 0.1 and 0.3 were carried out. The test results show that with decreasing temperature, the crack growth rate decreases and the fatigue life increases. At the same time, with the increase of the stress ratio, the fatigue crack growth rate also increases accordingly. However, with the decrease of temperature, the effect of stress ratio on fatigue crack growth rate becomes smaller and smaller. On the basis of experiments, an improved McEvily model considering the effects of temperature and stress ratio was proposed in this paper. The model can predict the fatigue crack growth rate of HTS-A steel under different low temperatures and different stress ratios. The predicting results were compared with the experimental data. This prediction model lays a foundation for the fatigue life assessment of marine equipment in low temperature environment.

fatigue crack growth rate  /  HTS-A steel  /  stress ratio  /  low temperature  /  fatigue test
Guang-en LUO, Jia-qi LIU, Jin-hui JIANG. Effect of different stress ratios on fatigue crack growth rate of HTS-A steel at low temperature and prediction for crack growth[J]. Journal of Ship Mechanics, 2025 , 29 (11) : 1746 -1756 . DOI: 10.3969/j.issn.1007-7294.2025.11.008
Appendix
Less
Year 2025 volume 29 Issue 11
PDF
65
28
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.1007-7294.2025.11.008
  • Receive Date：2025-05-18
  • Online Date：2026-03-18
Article Data
Affiliations
History
  • Received：2025-05-18
Funding
Affiliations
    1.School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
    2.State Key Laboratory of Navigation and Safety Technology/Key Laboratory of Marine Technology Ministry of Communications, Shanghai Ship and Shipping Research Institute Co. Ltd., Shanghai 200135, China
References
Share
https://castjournals.cast.org.cn/joweb/cblx/EN/10.3969/j.issn.1007-7294.2025.11.008
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House