Home Journals Articles Updates About
CN
image
收藏切换
Experimental and simulation study on low cycle fatigue crack growth and crack tip plastic zone evolution of a marine high-strength steel
收藏切换
PDF
Hong-rui LIU1, Jing-xia YUE1, Zhi-ting XU2, Yi-ran JIANG1
Journal of Ship Mechanics | 2025, 29(1) : 98 - 109
Less
收藏切换
Journal of Ship Mechanics | 2025, 29(1): 98-109
• Structural Mechanics •
Experimental and simulation study on low cycle fatigue crack growth and crack tip plastic zone evolution of a marine high-strength steel
Full
Hong-rui LIU1, Jing-xia YUE1, Zhi-ting XU2, Yi-ran JIANG1
Affiliations
  • 1.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
  • 2.Marine Design and Research Institute of China, Shanghai 200011, China
Published: 2025-01-20 doi: 10.3969/j.issn.1007-7294.2025.01.010
Outline
收藏切换

The fracture failure of ship structures often results from the combination of low cycle fatigue and cumulative plasticity. In order to study the low cycle fatigue crack growth and plastic zone size of a marine high-strength steel considering cumulative plasticity, the low cycle fatigue crack growth test of a marine high-strength steel CT specimen under tension-tension-cyclic load was conducted according to ASTM E647 standard, and the plastic zone size of crack tip under different crack lengths was measured by DIC method. By introducing Chaboche model, an extended finite element simulation method was established to obtain the plastic zone size at the crack tip for exploring the influence of different load factors on the plastic zone size. Then the effectiveness of the method was verified based on test data. Finally, based on the results of finite element calculation and Irwin model, a prediction model of plastic zone size at crack tip considering cumulative plastic strain was proposed, and a crack growth rate model based on plastic zone size was established.

plastic zone size  /  Chaboche combined hardening model  /  low cycle fatigue  /  crack propagation
Hong-rui LIU, Jing-xia YUE, Zhi-ting XU, Yi-ran JIANG. Experimental and simulation study on low cycle fatigue crack growth and crack tip plastic zone evolution of a marine high-strength steel[J]. Journal of Ship Mechanics, 2025 , 29 (1) : 98 -109 . DOI: 10.3969/j.issn.1007-7294.2025.01.010
Appendix
Less
Year 2025 volume 29 Issue 1
PDF
70
33
Cite this Article
BibTeX
Article Info
doi: 10.3969/j.issn.1007-7294.2025.01.010
  • Receive Date：2024-07-26
  • Online Date：2026-03-24
  • Published：2025-01-20
Article Data
Affiliations
History
  • Received：2024-07-26
Funding
Affiliations
    1.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
    2.Marine Design and Research Institute of China, Shanghai 200011, China
References
Share
https://castjournals.cast.org.cn/joweb/cblx/EN/10.3969/j.issn.1007-7294.2025.01.010
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