Local facesheet pulse buckling in a curved, composite sandwich panel

2013 ◽  
Vol 104 ◽  
pp. 249-260 ◽  
Author(s):  
Yifei Gao ◽  
Michelle S. Hoo Fatt
Keyword(s):  
Sandwich Panel ◽  
Composite Sandwich ◽  
Pulse Buckling

Dynamic pulse buckling and failure analysis of the single curved composite sandwich panel using the core high-order theory

2020 ◽  
Vol 234 (10) ◽  
pp. 1990-2011
Author(s):  
Seyed Ali Ahmadi ◽  
Mohammad Hadi Pashaei ◽  
Ramazan-Ali Jafari-Talookolaei
Keyword(s):  
Sandwich Panel ◽  
Failure Modes ◽  
Viscoelastic Model ◽  
Sandwich Panels ◽  
High Order ◽  
Foam Core ◽  
Composite Sandwich ◽  
The Core ◽  
Pulse Buckling ◽  
Dynamic Pulse

The current study aims to investigate the facesheet dynamic pulse buckling of simply supported, cylindrical composite sandwich panels using the Budiansky–Roth buckling criterion. The foam core has been modeled with isotropic elastic-perfectly plastic properties and various failure modes of the sandwich panel like facesheet fracture, foam shear fracture, and foam yield are investigated. The extended high-order sandwich panel core theory was used to model the compressibility of the core. To study the mechanical properties of the viscoelastic foam core, the Kelvin–Voigt linear viscoelastic model was applied. The transient responses and stress components obtained from the present method are compared with finite element solutions using commercial software ANSYS and those reported in the literature. Accordingly, reasonable agreement is observed. It was shown that the pulse local buckling strength of the panel increases with a decrease in the panel radius or an increase in the thickness of the panel, and facesheet fracture is considered more a likely failure mode of these sandwich panels.

Compression Test of Composite Sandwich Panel

2007 ◽  
pp. 605-608
Author(s):  
Jong Woong Lee ◽  
Cheol Won Kong ◽  
Se Won Eun ◽  
Jae Sung Park ◽  
Young Soon Jang ◽  
...  
Keyword(s):  
Compression Test ◽  
Sandwich Panel ◽  
Composite Sandwich

Bending response and failure mechanism of composite sandwich panel with Y-frame core

2019 ◽  
Vol 145 ◽  
pp. 106387 ◽  
Author(s):  
Jialin Liu ◽  
Zhenping He ◽  
Jiayi Liu ◽  
Wei Huang
Keyword(s):  
Failure Mechanism ◽  
Sandwich Panel ◽  
Composite Sandwich ◽  
Bending Response

scholarly journals Morphing nacelle inlet lip with pneumatic actuators and a flexible nano composite sandwich panel

2015 ◽  
Vol 24 (12) ◽  
pp. 125018 ◽  
Author(s):  
Nazli Gulsine Ozdemir ◽  
Fabrizio Scarpa ◽  
Monica Craciun ◽  
Chrystel Remillat ◽  
Cristian Lira ◽  
...  
Keyword(s):  
Sandwich Panel ◽  
Nano Composite ◽  
Pneumatic Actuators ◽  
Composite Sandwich

Flexural behavior of composite sandwich panel of aluminum foam and epoxy resin

2017 ◽  
Vol 6 (2) ◽  
pp. 276-284
Author(s):  
Shuliang Cheng ◽  
Xuya Zhao ◽  
Xiaoman Liu ◽  
Wei Yu ◽  
Yajun Xin
Keyword(s):  
Epoxy Resin ◽  
Aluminum Foam ◽  
Sandwich Panel ◽  
Flexural Behavior ◽  
Composite Sandwich

Optimum Stacking Sequence Design of Composite Sandwich Panel Using Genetic Algorithms

2012 ◽  
Vol 585 ◽  
pp. 29-33
Author(s):  
Amarpreet S. Bir ◽  
Hsin Piao Chen ◽  
Hsun Hu Chen
Keyword(s):  
Genetic Algorithms ◽  
Sandwich Panel ◽  
Compressive Loading ◽  
Face Sheet ◽  
Composite Sandwich ◽  
Minimization Problems ◽  
The Face ◽  
Coupling Terms ◽  
Laminate Thickness ◽  
Buckling Load Maximization

In the present study, both critical buckling load maximization and face-sheet laminate thickness minimization problems for the composite sandwich panel, subjected to bi-axial compressive loading under various imposed constraints have been investigated using genetic algorithms. In the previously published work, the optimization of simple composite laminate panels with only even number of laminae has been considered [1, 3]. The present work allows the optimization of a composite sandwich panel with both even and odd number of laminae in the face-sheet laminates. Also, the effects of the bending-twisting coupling terms (D16and D26) in bending stiffness matrix which were neglected in the previous studies [1, 2, 3], are considered in the present work for exact solutions. In addition effect of both balanced and unbalanced face-sheet laminates on the optimum solutions have also been investigated, whereas only balanced laminates were considered in the previous studies [1, 2, 3].

Stress analysis of a SPF/DB composite sandwich panel

1985 ◽  
Vol 20 (1-3) ◽  
pp. 365-374 ◽  
Author(s):  
T.David Kim ◽  
Charles E.S. Ueng
Keyword(s):  
Stress Analysis ◽  
Sandwich Panel ◽  
Composite Sandwich
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