Finite element analysis of sandwich panels with stepwise graded aluminum honeycomb cores under blast loading

2016 ◽  
Vol 80 ◽  
pp. 1-12 ◽  
Author(s):  
Shiqiang Li ◽  
Xin Li ◽  
Zhihua Wang ◽  
Guiying Wu ◽  
Guoxing Lu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Sandwich Panels ◽  
Blast Loading ◽  
Element Analysis ◽  
Aluminum Honeycomb ◽  
Honeycomb Cores

Wrinkling in sandwich panels – an analytical approach

2011 ◽  
Vol 13 (6) ◽  
pp. 705-730 ◽  
Author(s):  
Vitaly Koissin ◽  
Andrey Shipsha ◽  
Vitaly Skvortsov
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Approach ◽  
Local Buckling ◽  
Finite Size ◽  
Sandwich Panels ◽  
Good Precision ◽  
Foam Core ◽  
Element Analysis ◽  
Honeycomb Cores

This article deals with theoretical modeling of the local buckling in foam–core sandwich panels. This phenomenon is considered mainly in the periodic (unbounded wrinkle wave) and linearly elastic formulation. The analytical solutions are in agreement with results of finite element analysis and can be applied with a good precision for many finite-size panels, as well as for many sandwiches having honeycomb cores.

Sandwich panels with layered graded aluminum honeycomb cores under blast loading

2017 ◽  
Vol 173 ◽  
pp. 242-254 ◽  
Author(s):  
Shiqiang Li ◽  
Xin Li ◽  
Zhihua Wang ◽  
Guiying Wu ◽  
Guoxing Lu ◽  
...  
Keyword(s):  
Sandwich Panels ◽  
Blast Loading ◽  
Aluminum Honeycomb ◽  
Honeycomb Cores

Analysis of In-Plane Equivalent Elastic Modulus of Aluminum Honeycomb Cores Based on Finite Element Method

2013 ◽  
Vol 477-478 ◽  
pp. 1159-1168
Author(s):  
Ming Chen ◽  
Xu Can Xu ◽  
Jin Fei Liu
Keyword(s):  
Finite Element ◽  
Elastic Modulus ◽  
Engineering Application ◽  
Volume Element ◽  
Element Analysis ◽  
Aluminum Honeycomb ◽  
Simulation Results ◽  
Honeycomb Cell ◽  
Honeycomb Cores ◽  
Plane Deformations

In order to overcome the low precision of analytic formulas for equivalent elastic modulus of honeycomb, the in-plane deformations of honeycomb are simulated numerically through finite element analysis (FEA) software Ansys. The representative volume element (RVE) is firstly selected and modeled in 3D, according to the repetition of honeycomb cell. Then the deformations of RVE under three different boundary conditions are discussed on several premises. And the equivalent elastic modulus of two specifications of honeycomb from experiments, analytic formulas of Gibson and FEAs simulation results are presented and compared, adequately proving the effectiveness of the above method. Finally, the fitting formulas of equivalent elastic modulus that are convenient for engineering application are proposed by analyzing series of different sizes honeycomb.

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