Dynamic Response of Polyurethane-hemisphere Sandwich Structure under Action of Explosive Shock Wave

被引：0

作者：

Pan T. ^{[1
]}

Bian X. ^{[1
]}

Yuan M. ^{[1
]}

Wang L. ^{[2
]}

Huang Y. ^{[2
]}

Huang G. ^{[1
,3
]}

Zhang H. ^{[1
,3
]}

机构：

[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

[2] Air Defense Technology Co., Ltd., Beijing Institute of Technology, Beijing

[3] Modern Ordnance Technology Laboratory, Beijing Institute of Technology Chongqing Innovation Center, Chongqing

来源：

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

关键词：

explosion shock wave; hemispheric structure; numerical simulation; polyurethane; sandwich structure;

D O I：

10.12382/bgxb.2023.0645

中图分类号：

学科分类号：

摘要：

Improvement of blast resistance of explosion-proof equipment has become a popular research topic. The current explosion-proof equipment is mainly made of metal, generally having considerable weight, the use of lattice sandwich structure can achieve lightweight. Lattice sandwich structure has good energy absorption efficiency and excellent mechanical properties at high strain rates, but the non-deformable hemispherical lattice has not been considered in the previous explosion protection research, and the research on composite polyurethane foam explosion-resistant sandwich structure is even more rare. In view of this, a new type of polyurethane-hemispherical sandwich structure is proposed in considering the energy absorption of polyurethane foam and the arch deformation resistance of hemispherical structure, and a combination of experiment and numerical simulation is used to study the dynamic response of polyurethane-hemispherical sandwich structure under the blast shockwave loading. The results show that the center point displacement of polyurethane-hemisphere sandwich structure with the approximate surface density is the smallest under 0. 65 m blast impact of 500 g TNT, which is 30% and 35% smaller than that of aluminum plate and pure hemisphere sandwich plate, respectively. The pure hemisphere sandwich plate absorbs the most energy but has the largest deformation, and the energy absorption of polyurethane-hemisphere sandwich structure and aluminum plate is 85% and 63% of that of the pure hemisphere sandwich plate, respectively, which shows that the incorporation of polyurethane has a significant role in ensuring the energy absorption. It can be seen that, compared with the aluminum plate, the polyurethane-hemispheres sandwich structure can effectively reduce the speed and stress concentration of the target plate while ensuring the energy absorption efficiency. © 2023 China Ordnance Society. All rights reserved.

引用

页码：3580 / 3589

页数：9

共 19 条

[1] MOURITZ A P., Advances in understanding the response of fibrebased polymer composites to shock waves and explosive blasts, Composites Part A: Applied Science and Manufacturing, 125, (2019)
[2] WANCHOO P, MATOS H, ROUSSEAU C E, Et al., Investigations on air and underwater blast mitigation in polymeric composite structures-a review, Composite Structures, 263, (2021)
[3] LANGDON G S, YUEN S C K, NURICK G N., Experimental and numerical studies on the response of quadrangular stiffened plates. Part II: localised blast loading, International Journal of Impact Engineering, 31, 1, pp. 85-111, (2005)
[4] NURICK G N, OLSON M D, FAGNAN J R, Et al., Deformation and tearing of blast-loaded stiffened square plates, International Journal of Impact Engineering, 16, 2, pp. 273-291, (1995)
[5] BONORCHIS D, NURICK G N., The analysis and simulation of welded stiffener plates subjected to localised blast loading, International Journal of Impact Engineering, 37, 3, pp. 260-273, (2010)
[6] CUI X D, ZHAO L M, WANG Z H, Et al., Dynamic response of metallic lattice sandwich structures to impulsive loading, International Journal of Impact Engineering, 43, pp. 1-5, (2012)
[7] VO N H, PHAM T M, BI K, Et al., Stress wave mitigation properties of dual-meta panels against blast loads, International Journal of Impact Engineering, 154, (2021)
[8] BOHARA R P, LINFORTH S, NGUYEN T, Et al., Dual-mechanism auxetic-core protective sandwich structure under blast loading, Composite Structures, 299, (2022)
[9] LV W T, LI D., Quasi-static and blast resistance performance of octet-truss-filled double tubes, Engineering Structures, 275, (2023)
[10] KUMAR N V R, RAO N R, SUDHAKAR B, Et al., Foaming experiments on LM25 alloy reinforced with SiC particulates[ J], Materials Science and Engineering: A, 527, 21, pp. 6082-6090, (2010)

← 1 2 →