1428 Evaluation of Micro/Macro Elastic-Viscoplastic Properties of Aluminum Honeycomb Sandwich Panels

2013 ◽  
Vol 2013.26 (0) ◽  
pp. _1428-1_-_1428-3_
Author(s):  
Takayuki KODA ◽  
Tetsuya MATSUDA ◽  
Keita GOTO
Keyword(s):  
Sandwich Panels ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb ◽  
Viscoplastic Properties

scholarly journals Ballistic Resistance of Honeycomb Sandwich Panels under In-Plane High-Velocity Impact

2013 ◽  
Vol 2013 ◽  
pp. 1-20 ◽  
Author(s):  
Chang Qi ◽  
Shu Yang ◽  
Dong Wang ◽  
Li-Jun Yang
Keyword(s):  
Structural Parameters ◽  
Sandwich Panels ◽  
Unit Cell ◽  
Dynamic Responses ◽  
Honeycomb Core ◽  
Ballistic Resistance ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb ◽  
Parametric Studies ◽  
Nonmonotonic Effects

The dynamic responses of honeycomb sandwich panels (HSPs) subjected to in-plane projectile impact were studied by means of explicit nonlinear finite element simulations using LS-DYNA. The HSPs consisted of two identical aluminum alloy face-sheets and an aluminum honeycomb core featuring three types of unit cell configurations (regular, rectangular-shaped, and reentrant hexagons). The ballistic resistances of HSPs with the three core configurations were first analyzed. It was found that the HSP with the reentrant auxetic honeycomb core has the best ballistic resistance, due to the negative Poisson’s ratio effect of the core. Parametric studies were then carried out to clarify the influences of both macroscopic (face-sheet and core thicknesses, core relative density) and mesoscopic (unit cell angle and size) parameters on the ballistic responses of the auxetic HSPs. Numerical results show that the perforation resistant capabilities of the auxetic HSPs increase as the values of the macroscopic parameters increase. However, the mesoscopic parameters show nonmonotonic effects on the panels' ballistic capacities. The empirical equations for projectile residual velocities were formulated in terms of impact velocity and the structural parameters. It was also found that the blunter projectiles result in higher ballistic limits of the auxetic HSPs.

Dynamic behavior of aluminum honeycomb sandwich panels under air blast: Experiment and numerical analysis

2014 ◽  
Vol 108 ◽  
pp. 1001-1008 ◽  
Author(s):  
Xin Li ◽  
Peiwen Zhang ◽  
Zhihua Wang ◽  
Guiying Wu ◽  
Longmao Zhao
Keyword(s):  
Numerical Analysis ◽  
Dynamic Behavior ◽  
Sandwich Panels ◽  
Air Blast ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb

Dynamic response of aluminum honeycomb sandwich panels under foam projectile impact

2017 ◽  
Vol 25 (8) ◽  
pp. 637-646 ◽  
Author(s):  
Xin Li ◽  
Peiwen Zhang ◽  
Li Shiqiang ◽  
Zhihua Wang ◽  
Guiying Wu
Keyword(s):  
Dynamic Response ◽  
Sandwich Panels ◽  
Projectile Impact ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb

Study on aluminum honeycomb sandwich panels with random skin/core weld defects

2013 ◽  
Vol 15 (6) ◽  
pp. 704-717 ◽  
Author(s):  
Shigang Ai ◽  
Yiqi Mao ◽  
Yongmao Pei ◽  
Daining Fang ◽  
Liqun Tang
Keyword(s):  
Sandwich Panels ◽  
Weld Defects ◽  
Honeycomb Sandwich ◽  
Aluminum Honeycomb
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