Impact Resistance Analysis of a Composite Double-Layer Honeycomb Sandwich Structure

2021 ◽  
Author(s):  
G. J. Bi ◽  
J. P. Yin ◽  
Z. J. Wang ◽  
Y. Y. Han ◽  
Z. J. Jia
Keyword(s):  
Double Layer ◽  
Sandwich Structure ◽  
Impact Resistance ◽  
Resistance Analysis ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

High-Frequency Vibration Response of Metal Honeycomb Sandwich Structure

2009 ◽  
Vol 79-82 ◽  
pp. 1727-1730 ◽  
Author(s):  
Xiao Dong He ◽  
Xiang Hao Kong ◽  
Li Ping Shi ◽  
Ming Wei Li
Keyword(s):  
High Frequency ◽  
Sandwich Structure ◽  
Dynamic Pressure ◽  
Vibration Response ◽  
Element Analysis ◽  
High Frequency Vibration ◽  
Honeycomb Sandwich ◽  
Vibration Experiment ◽  
Aerial Vehicle ◽  
Honeycomb Sandwich Structure

ARMOR TPS panel is above the whole ARMOR TPS, and the metal honeycomb sandwich structure is the surface of the ARMOR TPS panel. So the metal honeycomb sandwich structure plays an important role in the ARMOR TPS, while it bears the flight dynamic pressure and stands against the flight dynamic calefaction. So the active environment of metal honeycomb sandwich structure is very formidable. We have to discuss any extreme situation, for reason of making sure aerial vehicle is safe. And high-frequency vibration is one of active environment. In this paper we have analyzed high-frequency vibration response of metal honeycomb sandwich structure. We processed high-frequency vibration experiment by simulating true aerial environment. Sequentially we operated high-frequency vibration experiment of metal honeycomb sandwich structure with cracks, notches and holes. Then finite-element analysis was performed by way of validating the experiment results. Haynes214 is a good high temperature alloy material of both face sheet and core at present, so we choose it in this paper.

Application of lock-in thermography for the inspection of disbonds in titanium alloy honeycomb sandwich structure

2017 ◽  
Vol 81 ◽  
pp. 69-78 ◽  
Author(s):  
Hanxue Zhao ◽  
Zhenggan Zhou ◽  
Jin Fan ◽  
Gen Li ◽  
Guangkai Sun
Keyword(s):  
Titanium Alloy ◽  
Sandwich Structure ◽  
Honeycomb Sandwich ◽  
Lock In ◽  
Honeycomb Sandwich Structure

Honeycomb-Cored Sandwich Structure Composites

2010 ◽  
pp. 223-235
Keyword(s):  
Composite Materials ◽  
Sandwich Structure ◽  
Complex Structure ◽  
Failure Mechanisms ◽  
Resin System ◽  
Lower Weight ◽  
Film Adhesive ◽  
Adhesive Prepreg ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

Abstract The honeycomb sandwich structure composite is a very efficient and complex structure widely used in the aircraft industry. Honeycomb-cored sandwich panels increase part stiffness at a lower weight than monolithic composite materials. This chapter describes the analysis of the intermingling of the film adhesive/prepreg resin system. It discusses the causes and effects of honeycomb core movement, which results in core crush. The chapter also explains the formation of a void in honeycomb composites and the failure mechanisms in honeycomb sandwich structure composites.

Characterization and Design of Honeycomb Absorbing Materials

2019 ◽  
Vol 294 ◽  
pp. 51-56
Author(s):  
Hui Min Sun ◽  
Le Chen ◽  
Zhao Zhan Gu
Keyword(s):  
Double Layer ◽  
Low Frequency ◽  
Single Layer ◽  
Electromagnetic Parameters ◽  
Honeycomb Sandwich ◽  
Absorbing Materials ◽  
Absorbing Material ◽  
The Difference ◽  
Free Space Method ◽  
Honeycomb Sandwich Structure

Honeycomb absorbing materials are anisotropic structural materials. Depending on the size of honeycomb lattices, the absorbent content of the impregnated layer is different, the thickness of the impregnated layer is different, and the absorbing function of the impregnated honeycomb absorbing materials is also different. For the characterization of electromagnetic parameters of honeycomb absorbing materials, this paper adopts free space method for testing, uses CST software for modeling, and inverts the electromagnetic parameters of honeycomb absorbing structures. The absorbing performance of single-layer and double-layer honeycomb sandwich structures was simulated by RAM Optimizer software. The research shows that the height of the single-layer honeycomb absorbing material is 22mm. When the absorber content is 65%, 75% and 85% respectively, the harmonic peak moves slightly to the low frequency electromagnetic wave with the increase of the absorber content, but the absorbing strength decreases with the increase of the absorber content. For the double-layer honeycomb sandwich structure, the difference of absorber content in the upper and lower honeycomb absorbing materials is smaller, and the absorbing performance is stronger. When the thickness of the wave-transparent panel is thinner, the harmonic peak of the absorbing curve moves slightly to the high frequency.

scholarly journals Mechanical modeling of bending stiffness degradation for soft-honeycomb sandwich structure under CW laser heating

AIP Advances ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 025201 ◽  
Author(s):  
Jiawei Wang ◽  
Bin Li ◽  
Yongxiang Zhu ◽  
Weiping Liu ◽  
Lixiong Wu ◽  
...  
Keyword(s):  
Laser Heating ◽  
Sandwich Structure ◽  
Bending Stiffness ◽  
Stiffness Degradation ◽  
Mechanical Modeling ◽  
Cw Laser ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

Failure study of honeycomb sandwich structure with embedded part under axial pullout loading

2020 ◽  
Vol 146 ◽  
pp. 106489 ◽  
Author(s):  
Ruixiang Bai ◽  
Hongqi Ou ◽  
Kewang Peng ◽  
Wen Wu ◽  
Zhenkun Lei ◽  
...  
Keyword(s):  
Sandwich Structure ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure
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