Application of Carbon Fiber Reinforced Composites on Lightweight Design of Articulated Platform

2018 ◽  
Vol 921 ◽  
pp. 85-90 ◽  
Author(s):  
Han Yang Li ◽  
Ying Dai ◽  
Xiao Fei Lyu
Keyword(s):  
Carbon Fiber ◽  
Optimization Design ◽  
Fiber Composite ◽  
Lightweight Design ◽  
High Stress ◽  
Bus Rapid Transit ◽  
Reinforced Composites ◽  
Carbon Fiber Composite ◽  
Stress Region ◽  
Carbon Fiber Reinforced Composites

For the purpose of weight saving, the heavy metal articulated platform, which is used in Bus Rapid Transit (BRT) vehicles to connect the front and rear compartments, is replaced with carbon fiber composite material. Composites articulated plates are designed based on the requirements of shape, size, positioning, connection and load of steel articulated platform. Optimization design is applied to high stress region in the articulated plates to provide references for the improvement and lightweight design of the articulated platform.

Numerical Simulation and Optimization Design of Foam Core/Carbon Fiber Composite Sandwich Beams

2010 ◽  
Vol 29-32 ◽  
pp. 2256-2261 ◽  
Author(s):  
Jun Li ◽  
Ba Ta Xi
Keyword(s):  
Carbon Fiber ◽  
Optimization Design ◽  
Fiber Composite ◽  
Heterogeneous Material ◽  
Main Process ◽  
Foam Core ◽  
Original Design ◽  
Carbon Fiber Composite ◽  
Simulation And Optimization ◽  
Composite Sandwich

This note presents the main process of optimization design of foam core/carbon fiber composite sandwich which primarily designed for UAV wing beams. During the actual application, the original design provided excessive structural strength and it has certain capacity to be optimized. So the weight of structure can be reduced under the premise of meet the strength requirement. In order to characterize fully the complex mechanical behavior of such a highly heterogeneous material and find the ultimate strength of this structure, MSC.Patran/Nastran has be applied on analysis of this composite sandwich structure. Base on the result of the numerical simulations, the best combination of composite laminated and the material layer thickness have be determined, and the beams structure of the lightweight has be designed ultimately.

Applications of Composites on Textile Machinery

2011 ◽  
Vol 233-235 ◽  
pp. 1222-1226
Author(s):  
Sai Nan Wei ◽  
Li Chen
Keyword(s):  
Carbon Fiber ◽  
High Speed ◽  
Rational Design ◽  
Fiber Composite ◽  
Rapid Development ◽  
Fiber Reinforced Composites ◽  
High Price ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Carbon Fiber Composite

High performance fiber reinforced composites have a long history and wide usage in aerospace, sports, military, etc. In this paper applications of composites on textile machinery were elaborated, such as carbon-fiber reinforced plastic (CFRP) guide bar, composite rapier belt and rapier head in rapier loom, nylon shuttle, carbon fiber composite heddle frame for high-speed looms, transmission shaft, needle bed, conveyor belts. It indicated that the composites can improve the performance obviously. Along with the rapid development of textile, fiber reinforced composites are continuous replacing the traditional materials as cast iron, steel and aluminum textile machine parts, But the applications of composites on textile machinery are still in the initial stage. High price is the major obstruction factor for its development. Through improving the level of automation technology, reducing producing cost, rational design of structure, the producing cost can be sharply reduced, which is also benefit for textile machinery development.

scholarly journals Secondary Raw Materials from Residual Carbon Fiber-Reinforced Composites by An Upgraded Pyrolysis Process

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3408
Author(s):  
Alexander Lopez-Urionabarrenechea ◽  
Naia Gastelu ◽  
Alberto Jiménez-Suárez ◽  
Silvia G. Prolongo ◽  
Adriana Serras-Malillos ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Raw Materials ◽  
Fiber Composite ◽  
Tensile Modulus ◽  
Recycling Process ◽  
Carbon Fiber Composite ◽  
Gaseous Stream ◽  
Carbon Fiber Reinforced Composites ◽  
Interlaminar Shear

This paper presents a process where carbon fibers and hydrogen can be recovered simultaneously through a two-stage thermal treatment of an epoxy-carbon fiber composite. For this purpose, some pieces of epoxy resin reinforced with carbon fiber fabrics have been fabricated and, after curing, have been pyrolyzed in an installation consisting of two reactors. In the first one, the thermal decomposition of the resin takes place, and in the second one, the gases and vapors coming from the first reactor are thermally treated. Once this process is completed, the solid generated is oxidized with air to eliminate the resin residues and carbonaceous products from the fibers surface. The recovered carbon fiber fabrics have been reused to make new cured parts and their electrical and mechanical properties have been measured. The results show that it is possible to obtain carbon fiber fabrics that can be processed as they leave the recycling process and that retain 80% of the tensile modulus, 70% of the flexural strength, and 50% of the interlaminar shear strength. At the same time, a gaseous stream with more than 66% by volume of hydrogen can be obtained, reaching a maximum of 81.7%.

scholarly journals Comparative Characterization of Multiscale Carbon Fiber Composite with Long and Short MWCNTs at Higher Weight Fractions

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Michael Zimmer ◽  
Qunfeng Cheng ◽  
Shu Li ◽  
James Brooks ◽  
Richard Liang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Fiber ◽  
Fiber Composite ◽  
Carbon Fiber Composite ◽  
Multiwalled Carbon ◽  
The Matrix ◽  
Carbon Fiber Reinforced Composites ◽  
Multi Walled Carbon Nanotubes

There are documented advantages to using carbon nanotubes (CNTs) in composites for various property enhancements. However, to date, only limited studies have been conducted on using of longer CNTs over 1 mm in length. This study used long multiwalled carbon nanotubes (LMWCNTs) and their longer extended networks to test multiple properties in thermal conductivity, electrical conductivity, mechanical strength, and modulus and then compared these properties to those of shorter multi-walled carbon nanotubes (SMWCNTs). For carbon fiber-reinforced composites, the longer graphite paths from LMWCNTs in the matrix were expected to improve all properties. The longer networks were expected to allow for more undisturbed phonon transportation to improve thermal conductivity. This in turn relates to improved electrical conductivity and better mechanical properties. However, results have shown that the LMWCNTs do not improve or decrease thermal conductivity, whereas the shorter MWCNTs provide mixed results. LMWCNTs did show improvements in electrical, mechanical, and physical properties, but compared to shorter MWCNTs, the results in other certain properties varied. This perplexing outcome resides in the functioning of the networks made by both the LMWCNTs and shorter MWCNTs.

Study on Optimal Design of Light-Weight Composite Hood

2011 ◽  
Vol 415-417 ◽  
pp. 214-220
Author(s):  
Li Yang Gu ◽  
Peng Han ◽  
Duo Nian Yu
Keyword(s):  
Carbon Fiber ◽  
Optimization Design ◽  
Fiber Composite ◽  
Parameters Optimization ◽  
Light Weight ◽  
Carbon Fiber Composite ◽  
Detailed Design ◽  
Performance Requirements ◽  
Basic Performance ◽  
Optimization Parameters

In this paper, the traditional steel engine hood is analyzed using finite element method firstly, and then the basic performance requirements of the hood is obtained. Based on the principle of equal stiffness, the design process is executed on carbon fiber composite hood. Afterwards according to the property of this composite, the whole optimization process of composite hood from conceptual design to detailed design is accomplished by ways of free size optimization, parameters optimization and stacking sequence optimization. The optimal structure of carbon fiber composite engine hood can be obtained by comparing the results of optimization design. Carbon fiber can put lightweight into practice , and the developing time of composite hood can be sharply reduced .

scholarly journals Experimental Characterization and Numerical Modeling of the Interaction Between Carbon Fiber Composite Prepregs During a Preforming Process

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Weizhao Zhang ◽  
Xuan Ma ◽  
Jie Lu ◽  
Zixuan Zhang ◽  
Q. Jane Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Fiber Composite ◽  
Superior Performance ◽  
Carbon Fiber Composite ◽  
Molding Process ◽  
Economic Method ◽  
Element Simulation ◽  
Carbon Fiber Reinforced Composites ◽  
Interaction Factors ◽  
Fabric System

Carbon fiber reinforced composites have received growing attention because of their superior performance and high potential for lightweight systems. An economic method to manufacture the parts made of these composites is a sequence of forming followed by a compression molding. The first step in this sequence is called preforming that forms the prepreg, which is the fabric impregnated with the uncured resin, to the product geometry, while the molding process cures the resin. Slip between different prepreg layers is observed in the preforming step, and it is believed to have a non-negligible impact on the resulting geometry. This paper reports a method to characterize the interaction between different prepreg layers, which should be valuable for future predictive modeling and design optimization. An experimental device was built to evaluate the interactions with respect to various industrial production conditions. The experimental results were analyzed for an in-depth understanding about how temperature, relative sliding speed, and fiber orientation affect the tangential interaction between two prepreg layers. Moreover, a hydro-lubricant model was introduced to study the relative motion mechanism of this fabric-resin-fabric system, and the results agreed well with the experiment data. The interaction factors obtained from this research will be implemented in a preforming process finite element simulation model.

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