Performance enhancement of sandwich panels with honeycomb–corrugation hybrid core

被引：3

作者：

Bin Han ^{[1
,2
,3
]}

Wenbin Wang ^{[2
]}

Zhijia Zhang ^{[2
,3
]}

Qiancheng Zhang ^{[2
,3
]}

Feng Jin ^{[2
,3
]}

Tianjian Lu ^{[2
,3
]}

机构：

[1] School of Mechanical Engineering, Xi’an Jiaotong University

[2] MOE Key Laboratory for Multifunctional Materials and Structures, Xi’an Jiaotong University

[3] State Key Laboratory for Mechanical Structure Strength and Vibration, Xi’an Jiaotong University

来源：

Theoretical & Applied Mechanics Letters | 2016年 / 6卷 / 01期

关键词：

Honeycomb–corrugation; Compression; Shear; Bending; Performance enhancement;

D O I：

暂无

中图分类号：

TB383.4 []; TB33 [复合材料];

学科分类号：

070205 ; 080501 ; 1406 ; 0805 ; 080502 ;

摘要：

The concept of combining metallic honeycomb with folded thin metallic sheets(corrugation) to construct a novel core type for lightweight sandwich structures is proposed. The honeycomb–corrugation hybrid core is manufactured by filling the interstices of aluminum corrugations with precision-cut trapezoidal aluminum honeycomb blocks, bonded together using epoxy glue. The performance of such hybrid-cored sandwich panels subjected to out-of-plane compression, transverse shear, and three-point bending is investigated, both experimentally and numerically. The strength and energy absorption of the sandwich are dramatically enhanced, compared to those of a sandwich with either empty corrugation or honeycomb core. The enhancement is induced by the beneficial interaction effects of honeycomb blocks and folded panels on improved buckling resistance as well as altered crushing modes at large plastic deformation.The present approach provides an effective method to further improve the mechanical properties of conventional honeycomb-cored sandwich constructions with low relative densities.

引用

页码：54 / 59

页数：6

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