Research on scaling law of boundary tearing damage of stiffened plates for ship subjected to underwater explosion load

被引：0
|
作者：
Gao P. [1 ]
Yan M. [1 ]
Zhang Q. [2 ]
Du Z. [3 ]
机构：
[1] School of Mechanical Engineering, Shenyang University of Technology, Shenyang
[2] Science and Technology on Reactor System Design Technology Laboratory of NPIC, Chengdu
[3] Naval Research Academy, Beijing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 04期
关键词：
dimensionless parameter; initial response velocity; ship stiffened plate; tear damage;
D O I：
10.13465/j.cnki.jvs.2024.04.005
中图分类号：
学科分类号：
摘要：
In order to analyze the deformation and damage of a stiffened plate for the ship subjected to underwater explosion shock wave load, the scaling law of boundary tearing damage of the plate under uniform load was studied by using simulation and data fitting methods. Firstly, we combined theory and data analysis to find that the initial response velocity is closely related to the failure mode, and can clearly describe the damage mode of the stiffened plate. At the same time, simulation results show that the fracture strain, plate thickness, and length width ratio are the important parameters that affect the boundary tear of the stiffened plate. Finally, a fitting function wasestablished to determine the tearing damage of the stiffened plate, and the effectiveness of the function wasverified by a warship damage case. The results show that the method of constructing the tearing damage criterion of the plate boundary based on the initial response velocity and the dimensionless number considering the parameters such as the fracture strain is feasible, which provides a reference for the scaling research on the damage of the ship' s stiffened plate. © 2024 Chinese Vibration Engineering Society. All rights reserved.
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页码：38 / 44and114
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