Numerical Simulation of New Class-Honeycomb Sandwich Structure's Core

2013 ◽  
Vol 834-836 ◽  
pp. 1601-1606
Author(s):  
Xiang Li ◽  
Li Cheng Yu ◽  
You Hui Zhou ◽  
Yang Li ◽  
Xun Zhang
Keyword(s):  
Numerical Simulation ◽  
Sandwich Structure ◽  
Simulation Analysis ◽  
Engineering Application ◽  
Efficient Energy ◽  
New Class ◽  
Honeycomb Sandwich ◽  
Theoretical Significance ◽  
First Time ◽  
Honeycomb Sandwich Structure

As the sandwich structure materials extensively used in the engineering field, the existing sandwich structure materials can not meet the requirements of engineering design gradually. New sandwich structural materials with efficient, energy-saving and easy processing need to be developed urgently. Relying on the mature research results now on honeycomb sandwich structure, the class-honeycomb sandwich structure is put forward for the first time, meanwhile, innovate configuration in the structure. Based on this, the paper analyzes the mechanics properties of the structure and the results showed that the new class-honeycomb sandwich structures mechanics properties have improved greatly compared with the original hexagonal honeycomb sandwich structure. And also simulation analysis was carried out on the cores structure. The validity of the equivalent elastic constant is confirmed through the theoretical analysis and simulation analysis. For this reason, it has great theoretical significance and engineering application value.

Mechanical Property Analysis and Numerical Simulation of Honeycomb Sandwich Structure’s Core

2013 ◽  
Vol 631-632 ◽  
pp. 518-523 ◽  
Author(s):  
Xiang Li ◽  
Min You
Keyword(s):  
Numerical Simulation ◽  
Elastic Constants ◽  
Sandwich Structure ◽  
Optimization Design ◽  
Simulation Analysis ◽  
Finite Element Program ◽  
Honeycomb Sandwich ◽  
Calculation Results ◽  
Element Program ◽  
Typical Satellite

Owing to the lack of a good theory method to obtain the accurate equivalent elastic constants of hexagon honeycomb sandwich structure’s core, the paper analyzed mechanics performance of honeycomb sandwich structure’s core and deduced equivalent elastic constants of hexagon honeycomb sandwich structure’s core considering the wall plate expansion deformation’s effect of hexagonal cell. And also a typical satellite sandwich structure was chose as an application to analyze. The commercial finite element program ANSYS was employed to evaluate the mechanics property of hexagon honeycomb core. Numerical simulation analysis and theoretical calculation results show the formulas of equivalent elastic constants is correct and also research results of the paper provide theory basis for satellite cellular sandwich structure optimization design.

scholarly journals Micro Fracture Behavior of Composite Honeycomb Sandwich Structure

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 135
Author(s):  
Guangjian Bi ◽  
Jianping Yin ◽  
Zhijun Wang ◽  
Zijian Jia
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Fracture Energy ◽  
Energy Absorption ◽  
Sandwich Structure ◽  
Great Influence ◽  
Energy Curve ◽  
Energy Calculation ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

To study the influence of structure size and composite forms on the mechanical properties of the composite double honeycomb sandwich structure, a composite double honeycomb sandwich structure was initially designed. The dynamic response of a composite double-layer honeycomb sandwich structure under high-speed impact was studied through theoretical analysis and numerical simulation. Ls-dyna software was used to simulate the initially designed composite structure. According to the numerical simulation results and the proposed method for calculating the fracture energy of the composite double honeycomb sandwich structure, the effects of different composite forms on the mechanical properties were analyzed. The results show that the proposed fracture energy calculation method can effectively describe the variation trend of the honeycomb structure and the micro-element fracture situation in the valid time. The fracture energy curve has a high sensitivity to cell density and material, and the strength of the top core has a great influence on the overall energy absorption. Compared with the traditional honeycomb protection structure, the energy absorption of the initially designed composite honeycomb sandwich structure was improved effectively.

Experimental Analysis and Numerical Simulation on Impact Response of Sand-filled Aluminium Honeycomb Sandwich Structure

2017 ◽  
Vol 86 (2) ◽  
pp. 517-534
Author(s):  
Weiming Luo ◽  
Shaoqing Shi ◽  
Jianhu Sun ◽  
Yuzheng Lv
Keyword(s):  
Numerical Simulation ◽  
Experimental Analysis ◽  
Sandwich Structure ◽  
Impact Response ◽  
Honeycomb Sandwich ◽  
Honeycomb Sandwich Structure

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.

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