Evaluation of corrugated core configuration effects on low-velocity impact response in metallic sandwich panels

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Testing Pub Date : 2024-01-08 DOI:10.1515/mt-2023-0160

E. Zurnaci, H. Gökkaya

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Abstract

Abstract Sandwich panels are used as body components of vehicles in many sectors, such as defense, aircraft, and aviation, due to their advanced mechanical properties and lightness. This study aims to investigate the effect of core configurations on mechanical performance and deformation behavior of metallic sandwich panels under low-velocity impact loading. For this purpose, metallic sandwich panels having monolithic and sliced core configurations were first produced. Low-velocity impact tests were carried out using varying energy levels (20, 40, 60 J) to examine how the intensity of influence affects the deformation of the sandwich panel. The perforation and deformation behavior on the upper surface plates of sandwich panels were evaluated. Experimental results showed that the core design significantly affects the impact behavior of sandwich panel samples. The sliced core configuration produced approximately 10 % more maximum contact force and absorbed 14 % more impact energy at high-impact energy levels. Additionally, the sliced core configuration delayed core collapse of the core in deformation situations where complete perforation does not occur.

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评估波纹芯材配置对金属夹芯板低速冲击响应的影响

摘要夹层板因其先进的机械性能和轻质特点，在国防、飞机和航空等许多领域被用作车身部件。本研究旨在探讨在低速冲击载荷下，夹芯结构对金属夹芯板机械性能和变形行为的影响。为此，首先制作了具有整体和切片夹芯结构的金属夹芯板。使用不同的能量水平（20、40、60 焦耳）进行低速冲击试验，以研究影响强度如何影响夹芯板的变形。对夹芯板上表面板材的穿孔和变形行为进行了评估。实验结果表明，夹芯设计对夹芯板样品的冲击行为有显著影响。在高冲击能量水平下，切片夹芯结构产生的最大接触力增加了约 10%，吸收的冲击能量增加了 14%。此外，在未发生完全穿孔的变形情况下，切片夹芯结构可延迟夹芯的塌陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.