Plastic dynamic response of folded sandwich panels under air-blast loading

被引：0

作者：

Ke L. ^{[1
]}

Wang Z. ^{[1
]}

Liu K. ^{[1
]}

Wang J. ^{[1
]}

机构：

[1] School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2020年 / 41卷 / 06期

关键词：

Air blast; Equivalence theory; Folded sandwich panel; Impact load; Numerical simulation; Plastic dynamic response; Plastic hinge; Yield function;

D O I：

10.11990/jheu.201901039

中图分类号：

学科分类号：

摘要：

Folded sandwich panels under impact resistance are mainly evaluated by experiments and numerical simulations, which are costly and time-consuming. To reduce cost, quickly evaluate the damage deformation of the structure, and effectively guide the design analysis of the ship structure in impact resistance, the structural response is divided into three stages according to the deformation characteristics of folded sandwich panels under air-blast loading. The analysis is performed based on the theorem of kinetic energy, the theory of energy conservation, and the theory of plastic mechanics, deriving the simplified theoretical prediction formula under air-blast loading. The applicability of the method is verified through a comparison with the calculations obtained from the finite element analysis. The findings provide a reference for the structure design and impact performance evaluation of folded sandwich panels. © 2020, Editorial Department of Journal of HEU. All right reserved.

引用

页码：797 / 804

页数：7

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