Effect of boundary support conditions on impact behavior of silicone pin‐reinforced polymer sandwich composite structure

2020 ◽  
Vol 41 (12) ◽  
pp. 5104-5115
Author(s):  
Shivanku Chauhan ◽  
Sonika Sahu ◽  
Mohd. Z. Ansari
Keyword(s):  
Composite Structure ◽  
Impact Behavior ◽  
Sandwich Composite ◽  
Reinforced Polymer ◽  
Support Conditions ◽  
Sandwich Composite Structure

scholarly journals Mechanical behavior of sandwich structure composites for helicopters

2020 ◽  
Vol 12 (4) ◽  
pp. 155-162
Author(s):  
George PELIN ◽  
Cristina-Elisabeta PELIN ◽  
Adriana STEFAN ◽  
Alexandra PETRE ◽  
Alina DRAGOMIRESCU
Keyword(s):  
Mechanical Behavior ◽  
Composite Structure ◽  
Weight Ratio ◽  
High Strength ◽  
Mechanical Tests ◽  
Impact Behavior ◽  
Sandwich Composite ◽  
Maximum Efficiency ◽  
Commercial Aircraft ◽  
Sandwich Composite Structure

The visible part of the floors of a commercial aircraft has long been a standard issue for virtually every commercial aircraft, mainly due to the weight of the materials from which they were made. Floor parts must provide mechanical strength and dimensional stability, while keeping the weight of the aircraft as low as possible for maximum efficiency. The design of the 787 Dreamliner and the Airbus A380 aircraft brought new opportunities in the use of the sandwich composite structure, mainly due to their light weight and high strength-to-weight ratio. Thus, this paper investigates the mechanical behavior of sandwich composite panels composed of two sides of carbon fiber laminate and Nomex honeycomb core obtained in the autoclave and developed under the RoRCraft CompAct grant. The technical approaches of this work are mainly focused on the compression behavior and especially on the compression after impact behavior of the hybrid sandwich composite structure, for defining and obtaining an optimal structure for the floors. These mechanical tests are decisive for such materials and have been performed in accordance with international ASTM standards.

Study on Sandwich Core Modeling for Structural Analysis of Sandwich Composite Structure

2018 ◽  
Vol 926 ◽  
pp. 57-63
Author(s):  
Hyun Bum Park
Keyword(s):  
Structural Analysis ◽  
Composite Structure ◽  
Solid Modeling ◽  
Modeling Method ◽  
Core Structure ◽  
Sandwich Composite ◽  
Damage Area ◽  
The Core ◽  
Sandwich Core ◽  
Sandwich Composite Structure

This study aims to investigate numerically the damage area of a sandwich composite structure. In this work, the optimal sandwich core modeling method was proposed. This study applied two modeling methods to compare their analysis results for the structural analysis of the sandwich composite structure. Firstly, the modeling of sandwich core structure was performed with laminate modeling method. Secondly, the modeling of core structure was performed with core solid modeling method. The laminate modeling method was compared with the core solid modeling method. For the modeling, a carbon/epoxy composite structure was applied to the face sheet. And a nomex honeycomb core was applied to the core. Finally, comparing the result of modeling as actual shape with the one of virtually applying the thickness and modeling, it was examined that the former had three times more stress than the latter.

scholarly journals Steel-Concrete Sandwich Composite Structure

1992 ◽  
Vol 30 (5) ◽  
pp. 5-20 ◽  
Author(s):  
Tamon Ueda ◽  
Toshiyuki Shioya
Keyword(s):  
Composite Structure ◽  
Sandwich Composite ◽  
Sandwich Composite Structure
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