Dynamic Response Mechanism of Aluminum Foam Sandwich Plate with Cavity under Shallow-buried Explosive Loading

被引：0

作者：

Liu W. ^{[1
]}

Ma H. ^{[1
,2
]}

Xu Q. ^{[3
]}

Yao X. ^{[1
]}

Zhao Y. ^{[3
]}

Yang K. ^{[1
]}

Yang H. ^{[3
]}

Shen Z. ^{[1
]}

机构：

[1] CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Anhui, Hefei

[2] State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui, Hefei

[3] Anhui Leiming Blasting Engineering Co.,Ltd., Anhui, Huaibei

来源：

Binggong Xuebao/Acta Armamentarii | 2023年 / 44卷 / 12期

关键词：

aluminum foam; anti-explosion performance; cavity structure; shallow-buried explosive;

D O I：

10.12382/bgxb.2022.1195

中图分类号：

学科分类号：

摘要：

The cavity structure can effectively protect the rear area. In order to study the influence of the cavity structure on the energy attenuation performance of aluminum foam sandwich plate structure, the influence of the cavity size on the deflection of sandwich plate, the secondary shock wave behind the plate and the energy absorption efficiency of aluminum foam core layer under the experimental conditions of explosion loading of shallow-buried explosive is investigated by changing the diameter and thickness of the cavity in the aluminum foam core layer. The results show that the intensity of secondary shock wave behind the structure decreases significantly with the increase of the cavity thickness in the aluminum foam. When the cavity diameter is 0. 3D and its thickness is 1 / 3H, the central pressure intensity is the lowest, which is about 63% of that of the non-porous aluminum foam plate. The volume strain is the largest when the cavity diameter is 0. 3D and its thickness ias 2 / 3H, which is 61% higher than that of the control group. The surface cavity structure can effectively enhance the energy absorption efficiency of aluminum foam sandwich structure. © 2023 China Ordnance Society. All rights reserved.

引用

页码：3613 / 3621

页数：8

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