Home Journals Articles Updates About
CN
image
收藏切换
Research on crystal plasticity constitutive model considering the strain softening effect of ultra-fine grain metal materials
收藏切换
PDF
Zhanguang ZHENG1, Jianan FAN1, Teng SUN2, Changji XIE1, Zeng HUANG1, 3
Journal of Mechanical Strength | 2025, 47(8) : 108 - 114
Less
收藏切换
Journal of Mechanical Strength | 2025, 47(8): 108-114
• Experimental Research·Testing Technology •
Research on crystal plasticity constitutive model considering the strain softening effect of ultra-fine grain metal materials
Full
Zhanguang ZHENG1, Jianan FAN1, Teng SUN2, Changji XIE1, Zeng HUANG1, 3
Affiliations
  • 1.School of Mechanical Engineering, Guangxi University, Nanning 530004, China
  • 2.College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China
  • 3.School of Mechanical Engineering, Guangxi Technological College of Machinery and Electricity, Nanning 530007, China
Published: 2025-08-15 doi: 10.16579/j.issn.1001.9669.2025.08.013
Outline
收藏切换

In order to study the strain softening phenomenon of ultra-fine grain (UFG) metal materials under uniaxial tensile loading, a modified model considering the effect of residual internal stress was proposed based on the classical crystal plasticity constitutive model, and the specific form of residual internal stress and its evolution were programmed into the user subroutine. The uniaxial tensile test data were fitted to verify the validity of the model, and the finite element simulation results of crystal plasticity were compared with and without the residual internal stress. The results show that the simulation results obtained by using the modified crystal plasticity constitutive model are in good agreement with the experimental results, indicating that the modified crystal plasticity constitutive model can effectively capture the strain-softening phenomenon of UFG metal materials, and the simulation results show different properties under the two conditions whether the residual internal stress is taken into account. It is reasonable to explain the strain softening phenomenon of UFG metal materials from the perspective of the formation and action of residual internal stress.

Ultra-fine grain metal materials  /  Crystal plasticity constitutive model  /  Uniaxial tension  /  Strain softening effect  /  Residual internal stress
Zhanguang ZHENG, Jianan FAN, Teng SUN, Changji XIE, Zeng HUANG. Research on crystal plasticity constitutive model considering the strain softening effect of ultra-fine grain metal materials[J]. Journal of Mechanical Strength, 2025 , 47 (8) : 108 -114 . DOI: 10.16579/j.issn.1001.9669.2025.08.013
Funding
Less
  • National Natural Science Foundation of China(52265018; 51675110)
  • Guangxi Natural Science Foundation(2021GXNSFAA220119)
  • Liuzhou City Science and Technology Planning Project(2022ABA0101)
Appendix
Less
Year 2025 volume 47 Issue 8
PDF
92
46
Cite this Article
BibTeX
Article Info
doi: 10.16579/j.issn.1001.9669.2025.08.013
  • Receive Date：2023-12-26
  • Online Date：2026-03-19
  • Published：2025-08-15
Article Data
Affiliations
History
  • Received：2023-12-26
  • Revised：2024-04-03
Funding
National Natural Science Foundation of China(52265018; 51675110)
Guangxi Natural Science Foundation(2021GXNSFAA220119)
Liuzhou City Science and Technology Planning Project(2022ABA0101)
Affiliations
    1.School of Mechanical Engineering, Guangxi University, Nanning 530004, China
    2.College of Mechanical and Marine Engineering, Beibu Gulf University, Qinzhou 535011, China
    3.School of Mechanical Engineering, Guangxi Technological College of Machinery and Electricity, Nanning 530007, China

Corresponding:

ZHENG Zhanguang, E-mail：
References
Share
https://castjournals.cast.org.cn/joweb/jxqd/EN/10.16579/j.issn.1001.9669.2025.08.013
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