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Forming and Springback Prediction of Strips Under Multi-square Punch Concave Forming Process Considering Partial-unloading Effects
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Qi-yu LIANG1, 2, Long ZHANG1, 2, 3, Ling ZHU1, 2, 3
Journal of Ship Mechanics | 2024, 28(12) : 1953 - 1969
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Journal of Ship Mechanics | 2024, 28(12): 1953-1969
• Structural Mechanics •
Forming and Springback Prediction of Strips Under Multi-square Punch Concave Forming Process Considering Partial-unloading Effects
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Qi-yu LIANG1, 2, Long ZHANG1, 2, 3, Ling ZHU1, 2, 3
Affiliations
  • 1.Key Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430063, China
  • 2.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
  • 3.Weihai Research Institute of Wuhan University of Technology, Weihai 264309, China

    • LIANG Qi-yu(1993-), female, lecturer

    ZHANG Long(2000-), male, master student

    ZHU Ling(1962-), male, professor, corresponding author, E-mail: .

Published: 2024-12-20 doi: 10.3969/j.issn.1007-7294.2024.12.011
Outline
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To further investigate the forming mechanism and springback characteristics of strips under multi-square punch forming (MSPF) considering partial-unloading effects, a series of concave forming tests of strips are conducted on the MSPF machine. This paper aims to reveal the physical mechanism of the elastic-plastic deformation in the MSPF process considering the effect of the forming approaches, and derive appropriate mathematical interpretations. The theoretical model is firstly established to analyse the concave forming mechanism and springback characteristics of the strip, and its accuracy is then validated by experimental data. The forming history and load evolutions are depicted to explore the required forming capacity through the proposed analytical method. Besides, the parametric studies are carried out to discuss their effects on the springback of the strip. The results suggest that the deformation paths of the strip are influenced by the forming approach, and the springback of the strip in convex forming is larger than that in concave forming.

multi-square punch forming (MSPF)  /  follower load  /  elastic-plastic deformation  /  partial-unloading  /  springback prediction
Qi-yu LIANG, Long ZHANG, Ling ZHU. Forming and Springback Prediction of Strips Under Multi-square Punch Concave Forming Process Considering Partial-unloading Effects[J]. Journal of Ship Mechanics, 2024 , 28 (12) : 1953 -1969 . DOI: 10.3969/j.issn.1007-7294.2024.12.011
Funding
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  • National Natural Science Foundation of China(52201378)
  • Open Fund of Weihai Research Institute of Wuhan University of Technology(WHYJY-KJ2021-008)
Appendix
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Year 2024 volume 28 Issue 12
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.12.011
  • Receive Date：2024-06-17
  • Online Date：2026-03-26
  • Published：2024-12-20
Article Data
Affiliations
History
  • Received：2024-06-17
Funding
National Natural Science Foundation of China(52201378)
Open Fund of Weihai Research Institute of Wuhan University of Technology(WHYJY-KJ2021-008)
Affiliations
    1.Key Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430063, China
    2.School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
    3.Weihai Research Institute of Wuhan University of Technology, Weihai 264309, China

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Corresponding author, E-mail:
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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
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Genus		 种数
Number of
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Percentage of total
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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
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