Strength, stiffness, and panel peeling strength of carbon fiber-reinforced composite sandwich structures with aluminum honeycomb cores for vehicle body

2018 ◽  
Vol 184 ◽  
pp. 1189-1196 ◽  
Author(s):  
Jianfeng Wang ◽  
Chengyang Shi ◽  
Na Yang ◽  
Haonan Sun ◽  
Yiqun Liu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Sandwich Structures ◽  
Vehicle Body ◽  
Fiber Reinforced Composite ◽  
Composite Sandwich ◽  
Composite Sandwich Structures ◽  
Reinforced Composite ◽  
Peeling Strength ◽  
Aluminum Honeycomb ◽  
Honeycomb Cores

scholarly journals Development of Aluminum Honeycomb Cored Carbon Fiber Reinforced Polymer Composite Based Sandwich Structure

2018 ◽  
Author(s):  
Mehmet Ziya Okur ◽  
Serkan Kangal ◽  
Metin Tanoğlu
Keyword(s):  
Carbon Fiber ◽  
Polymer Composite ◽  
Sandwich Structures ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Composite Sandwich ◽  
Composite Sandwich Structures ◽  
Reinforced Polymer ◽  
Aluminum Honeycomb ◽  
Composite Face

Lightweight composite sandwich structures are laminated composite structures that are composed of thin stiff face sheets bonded to a thicker lightweight core in between. These structures have high potential to be used in marine, aerospace, defense and civil engineering applications due to their high strength to weight ratios and energy absorption capacity.In this study, composite sandwich structures were developed with carbon fiber reinforced polymer composite face sheets and aluminum honeycomb core materials with various thicknesses. Carbon fiber/epoxy composite face sheets were fabricated with lamination of [0/90]s carbon fabrics by vacuum infusion technique. Al honeycomb layers were sandwiched together with the face sheets using a thermosetting adhesive. Mechanical tests were carried out to determine the mechanical behavior of face sheets, Al cores and the composite structure. Effect of core thickness on the mechanical properties of the sandwich was investigated.

scholarly journals Fabrication and Characterization of Fiber-Reinforced Composite Sandwich Structures Obtained by Fused Filament Fabrication Process

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 601
Author(s):  
George Razvan Buican ◽  
Sebastian-Marian Zaharia ◽  
Mihai Alin Pop ◽  
Lucia-Antoneta Chicos ◽  
Camil Lancea ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sandwich Structures ◽  
Mechanical Tests ◽  
Fiber Reinforced ◽  
Fused Filament Fabrication ◽  
Fiber Reinforced Composite ◽  
Three Point Bending ◽  
Composite Sandwich ◽  
Composite Sandwich Structures ◽  
Reinforced Composite

The application of fused filament fabrication processes is rapidly expanding in many domains such as aerospace, automotive, medical, and energy, mainly due to the flexibility of manufacturing structures with complex geometries in a short time. To improve the mechanical properties of lightweight sandwich structures, the polymer matrix can be strengthened with different materials, such as carbon fibers and glass fibers. In this study, fiber-reinforced composite sandwich structures were fabricated by FFF process and their mechanical properties were characterized. In order to conduct the mechanical tests for three-point bending, tensile strength, and impact behavior, two types of skins were produced from chopped carbon-fiber-reinforced skin using a core reinforced with chopped glass fiber at three infill densities of 100%, 60%, and 20%. Using microscopic analysis, the behavior of the breaking surfaces and the most common defects on fiber-reinforced composite sandwich structures were analyzed. The results of the mechanical tests indicated a significant influence of the filling density in the case of the three-point bending and impact tests. In contrast, the filling density does not decisively influence the structural performance of tensile tests of the fiber-reinforced composite sandwich structures. Composite sandwich structures, manufactured by fused filament fabrication process, were analyzed in terms of strength-to-mass ratio. Finite element analysis of the composite sandwich structures was performed to analyze the bending and tensile behavior.

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