scholarly journals Mechanical behavior of aluminum honeycomb sandwich structures under extreme low temperature conditions

2019 ◽  
Vol 700 ◽  
pp. 012017
Author(s):  
S P Zaoutsos
Keyword(s):  
Low Temperature ◽  
Mechanical Behavior ◽  
Sandwich Structures ◽  
Temperature Conditions ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb

Wavenumber study of guided waves in aluminum honeycomb sandwich structures

2015 ◽  
Author(s):  
Zhenhua Tian ◽  
Lingyu Yu ◽  
Guoliang Huang ◽  
Michel van Tooren ◽  
Will Mitchell
Keyword(s):  
Guided Waves ◽  
Sandwich Structures ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb

Experimental Study on Damage Characteristics of CFRPs/Aluminum Honeycomb Sandwich Structure Impacted by Ultra-High Speed Under High and Low Temperatures

2020 ◽  
Vol 20 (02) ◽  
pp. 2050028
Author(s):  
Enling Tang ◽  
Xiaoqi Zhang ◽  
Yafei Han
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Sandwich Structure ◽  
Impact Speed ◽  
Damage Characteristics ◽  
Honeycomb Sandwich ◽  
Temperature Environment ◽  
Aluminum Honeycomb ◽  
The Impact ◽  
Honeycomb Sandwich Structure

With the rapid development of material science, the original aluminum alloy shield structure of spacecraft has been gradually replaced by sandwiched structure of carbon fiber reinforced resin matrix composite structure with aluminum honeycomb. In order to reveal the damage characteristics induced by debris impacting on shield structure of spacecraft and aiming at the engineering requirements that spacecraft undergo alternately high and low temperature environment during on-orbit operation, CFRPs/aluminum honeycomb core sandwich shield structure is used as the impact object. The damage characteristics of 2A12 aluminum projectile impacting on CFRPs/aluminum honeycomb sandwich structure with different aluminum honeycomb arm lengths at different impact velocities are studied by using the high and low temperature system for the target and the loading system of two-stage light gas gun. The experimental results show that the arm lengths of aluminum honeycomb have little effect on the perforation area of front and rear surfaces of CFRPs/aluminum honeycomb sandwich structure at high temperature, but the impact speed has a great effect on the perforation areas of front and rear surfaces of rear panels. The lower the impact speed is, the smaller the perforation diameter is. The deformation and ablation areas of the front and rear surfaces of the aluminum honeycomb increase with the increasing of the arm length of the aluminum honeycomb. At the same time, the physical quantities mentioned above have similar changes in low temperature environment. The fitting formulas, such as the relationships among perforations of the front and rear surfaces of CFRP and the arm lengths of aluminum honeycomb, and ablation area of aluminum honeycomb and the arm lengths of aluminum honeycomb are given at the given experimental conditions. The micro-morphology and damage characteristics of the panels and aluminum honeycomb are analyzed at the different locations near the impact point at high temperature.

Dynamic crash responses of bio-inspired aluminum honeycomb sandwich structures with CFRP panels

2017 ◽  
Vol 121 ◽  
pp. 122-133 ◽  
Author(s):  
Yinghan Wu ◽  
Qiang Liu ◽  
Jie Fu ◽  
Qing Li ◽  
David Hui
Keyword(s):  
Sandwich Structures ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb

Ballistic performance of honeycomb sandwich structures reinforced by functionally graded face plates

2017 ◽  
Vol 21 (1) ◽  
pp. 211-229 ◽  
Author(s):  
Recep Gunes ◽  
Kemal Arslan ◽  
M Kemal Apalak ◽  
JN Reddy
Keyword(s):  
Sandwich Structure ◽  
Sandwich Structures ◽  
Threshold Energy ◽  
Functionally Graded ◽  
Honeycomb Core ◽  
Ballistic Performance ◽  
Damage Area ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb ◽  
Honeycomb Sandwich Structure

This study investigates damage mechanisms and deformation of honeycomb sandwich structures reinforced by functionally graded face plates under ballistic impact. The honeycomb sandwich structure consists of two identical functionally graded face sheets, having different material compositions through the thickness, and an aluminum honeycomb core. The functionally graded face sheets consist of ceramic (SiC) and aluminum (Al 6061) phases. The through-thickness mechanical properties of face sheets are assumed to vary according to a power-law. The locally effective material properties are evaluated using the Mori–Tanaka scheme. The effect of material composition of functionally graded face sheets on the ballistic performance of honeycomb sandwich structures was investigated using the finite element method and the penetration and perforation threshold energy values on ballistic performance and ballistic limit of the sandwich structures are determined. The contribution of the honeycomb core on the ballistic performance of the sandwich structure was evaluated by comparing with spaced plates (without honeycomb core) in terms of the residual velocity, kinetic energy, and damage area.

Vibro-acoustical responses of a sandwich panel consist of aluminum honeycomb core and fabric-reinforced graphite facings

2021 ◽  
pp. 109963622098246
Author(s):  
Luyao Wang ◽  
Liming Dai
Keyword(s):  
Sandwich Panel ◽  
Transmission Loss ◽  
Sandwich Structures ◽  
Numerical Study ◽  
The Other ◽  
Honeycomb Core ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb ◽  
Honeycomb Sandwich Structure ◽  
Composite Face

This research presents a numerical study on vibro-acoustic and sound transmission loss behavior of an aluminum honeycomb core sandwich panel with fabric-reinforced graphite (FRG) composite face sheets. The sandwich theory, which assumes the honeycomb core as an orthotropic structural layer, is applied to investigate the free and forced vibration behavior of the panel. The radiated sound power from the panel is quantified by Rayleigh integral method, and the random diffuse field as an incident sound source is derived based on finite element method with the employment of ACTRAN. A validation between the simulated results and the experimental data published is carried out to demonstrate the accuracy and reliability of the present approach. The comparison between different materials of honeycomb sandwich structures illustrates the advantages of the fabric-reinforced graphite honeycomb sandwich structure over the other types of sandwich structures considered. The effects of different boundary conditions and honeycomb structural geometry properties on the acoustical performance of the stiffness of the FRG panel are also investigated. The approach of the present research provides useful guidance for evaluating and selecting the other honeycomb sandwich panels when the vibratory and acoustic behaviors of the panels are considered.

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