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Analytical study on the dynamic responses of rectangular sandwich plate struck by a retangular frustum impactor
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Wen XIAO2, Ying-gang LI1, 2, Yong HU2, Ze-yuan SONG2, Hu LIU2, Xiao-bin LI1, 2
Journal of Ship Mechanics | 2025, 29(10) : 1629 - 1637
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Journal of Ship Mechanics | 2025, 29(10): 1629-1637
• Structural Mechanics •
Analytical study on the dynamic responses of rectangular sandwich plate struck by a retangular frustum impactor
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Wen XIAO2, Ying-gang LI1, 2, Yong HU2, Ze-yuan SONG2, Hu LIU2, Xiao-bin LI1, 2
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
Published: 2025-10-20 doi: 10.3969/j.issn.1007-7294.2025.10.012
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In this paper, a theoretical formula of plastic deformation and impact force of rectangular lightweight sandwich plate struck by a rectangular frustum impactor was derived based on the approximate yield criterion and rigid-perfectly plastic theory. Numerical simulations were conducted to verify the accuracy of the analytical prediction model. In addition, the influences of load distribution, side length ratio and location of impact loads on the dynamic response of a rectangular sandwich plate were theoretically analyzed. Results show that the theoretical predictions for PVC foam core sandwich plate struck by a rectangular frustum impactor show good agreement with numerical results. With the increase of load distribution coefficient, the impact strength per unit area decreases, which leads to the decrease in plastic deformation; when the impact position is closer to the boundary, the length of plastic hinges increases, resulting in a significant decrease in deformation; the plastic deformation achieves its most significant value under impact when the aspect ratio of foam sandwich plate is 1.

rectangular sandwich plate  /  impact load  /  analytical model  /  dynamic responses  /  numerical validation
Wen XIAO, Ying-gang LI, Yong HU, Ze-yuan SONG, Hu LIU, Xiao-bin LI. Analytical study on the dynamic responses of rectangular sandwich plate struck by a retangular frustum impactor[J]. Journal of Ship Mechanics, 2025 , 29 (10) : 1629 -1637 . DOI: 10.3969/j.issn.1007-7294.2025.10.012
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Year 2025 volume 29 Issue 10
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.10.012
  • Receive Date：2025-04-11
  • Online Date：2026-03-26
  • Published：2025-10-20
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  • Received：2025-04-11
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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
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https://castjournals.cast.org.cn/joweb/cblx/EN/10.3969/j.issn.1007-7294.2025.10.012
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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
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