Low velocity impact behavior of sandwich composites with different structural configurations of foam core: An experimental study

IF 3.5 3区材料科学 Q1 ENGINEERING, MECHANICAL

Journal of Sandwich Structures & Materials Pub Date : 2022-07-11 DOI:10.1177/10996362221115050

Huseyin E Yalkin, R. Karakuzu, Tuba Alpyildiz

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引用次数: 1

Abstract

In this study, various structural configurations such plain core, two-core, epoxy columns in the core, core stitched, and facesheet stitched were designed in the foam core sandwich composite with the aim to increase the absorbed energy and to decrease core/facesheet debonding area due to low-velocity impact. Glass fiber/epoxy and PVC foam were used as a facesheet material and a core material, respectively. The impact energy values were selected considering to penetration and perforation cases. The core stitching effect on low velocity impact behavior of sandwich composites were compared to facesheet stitching and it has been determined that the core stitching process can be an alternative to the facesheet stitching process in terms of the absorbed energy value. Impacted sandwich composites are investigated for core/facesheet debonding; the modifications through the thickness increased the failure path for core/facesheet debonding initiation and the results show that a significant decrease in the core/facesheet debonding area has been achieved.

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不同泡沫芯型夹层复合材料低速冲击性能的实验研究

本研究在泡沫芯夹芯复合材料中设计了平芯、双芯、芯内环氧柱、芯缝、面片缝等多种结构构型，以增加吸收能量，减少因低速冲击而产生的芯/面片脱粘面积。玻璃纤维/环氧树脂和聚氯乙烯泡沫分别用作表面材料和芯材。考虑侵彻和射孔情况，选择了冲击能值。对比了芯材拼接与面材拼接对夹层复合材料低速冲击性能的影响，确定芯材拼接在吸收能值方面可以替代面材拼接。研究了冲击夹层复合材料的芯/面剥离;通过厚度的改变增加了岩心/面剥离起始的破坏路径，结果表明，岩心/面剥离面积显著减小。

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

Journal of Sandwich Structures & Materials 工程技术-材料科学：表征与测试

CiteScore

9.60

自引率

2.60%

发文量

审稿时长

7 months

期刊介绍： The Journal of Sandwich Structures and Materials is an international peer reviewed journal that provides a means of communication to fellow engineers and scientists by providing an archival record of developments in the science, technology, and professional practices of sandwich construction throughout the world. This journal is a member of the Committee on Publication Ethics (COPE).