Microstructure and Mechanical Properties of Ti–TiB Based Short-Fiber Composite Materials Manufactured by Casting and Subjected to Deformation Processing

From the last few decades, the study of natural fiber composite materials has been gaining strong attention among researchers, scientists, and engineers. Natural fiber composite materials are becoming good alternatives to conventional materials because of their lightweight, high specific strength, low thermal expansion, eco-friendly, low manufacturing cost, nonabrasive and bio-degradable characteristics. It is proven that natural fiber is a great alternative to synthetic fiber in the sector of automobiles, railway, and aerospace. Researchers are developing various types of natural fiber-reinforced composites by combining different types of natural fiber such as jute, sisal, coir, hemp, abaca, bamboo, sugar can, kenaf, banana, etc. with various polymers such as polypropylene, epoxy resin, etc. as matrix material. Based on the application and required mechanical and thermal properties, numerous natural fiber-based composite manufacturing processes are available such as injection molding, compression molding, resin transfer molding, hand lay-up, filament welding, pultrusion, autoclave molding, additive manufacturing, etc. The aim of the paper is to present the developments of various manufacturing processes of natural fiber-based composites and obtained mechanical properties.

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Current Research and Patents of Plant Fiber Composites

Recent Patents on Mechanical Engineering ◽

10.2174/2212797611666181119105203 ◽

2019 ◽

Vol 12 (1) ◽

pp. 37-44

Author(s):

Jiankang Wang ◽

Zhijian Li ◽

Hongwei Lu

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Fiber Composite ◽

Fiber Composites ◽

Living Environment ◽

Processing Technology ◽

Plant Fiber ◽

Plant Fibers ◽

Processing Properties ◽

Fiber Composite Materials

Background: With the improvement of environment protection awareness, human beings have gradually become aware of that the plastic products, waste are harmful to the human living environment. Therefore, research and application of biodegradable materials that do not rely on petroleum resources have become hot topics. Researchers have accelerated the development and promotion of plant fiber because they are good flexibility, relatively rough surface and biodegradable. Objective: The development of plant fiber composites is reviewed, including composition ratio, interfacial modification, processing technology, and the effects of these technologies on the properties of plant fiber composites. Methods: The paper reviews various patents and research developments about plant fiber composite materials. It also analyzes the advantages and disadvantages of various patents and technologies from the aspects of biodegradable ability, mechanical properties, dispersing performance, processing properties, cost, and so on. Results: The component proportion, interface modification, and processing technology of plant fiber composite materials are prospected to improve the quality and application of the plant fiber composite materials in the future development. Conclusion: The considerable attention has been paid on the technology of biodegradable plant fiber composite. The recent patents and technologies have shown us a wider application in biodegradable plant fiber composite. The problems how to improve the mechanical properties of plant fibers, the dispersion properties of plant fibers and resins, and the processing properties of composite materials, will need more and more methods and equipment to solve or simplify.

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A comparison between a shear lag type model and an eshelby type model in predicting the mechanical properties of a short fiber composite

Scripta Metallurgica ◽

10.1016/0036-9748(87)90227-4 ◽

1987 ◽

Vol 21 (3) ◽

pp. 349-354 ◽

Cited By ~ 123

Author(s):

M. Taya ◽

R.J. Arsenault

Keyword(s):

Mechanical Properties ◽

Fiber Composite ◽

Short Fiber ◽

Type Model ◽

Shear Lag ◽

Short Fiber Composite

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Structural Design and Mechanical Performance Analysis of Carbon Fiber Closed Fixtures for UHV Transmission Lines

Mathematical Problems in Engineering ◽

10.1155/2021/6105360 ◽

2021 ◽

Vol 2021 ◽

pp. 1-13

Author(s):

Yujiao Zhang ◽

Cheng Yan ◽

Xiongfeng Huang ◽

Yanran Chen

Keyword(s):

Mechanical Properties ◽

Composite Materials ◽

Carbon Fiber ◽

Transmission Lines ◽

Fiber Composite ◽

Strength Analysis ◽

Laminate Structure ◽

Carbon Fiber Composite ◽

Fiber Composite Materials ◽

Uhv Transmission Lines

The closed clamp is a standard tool for the insulator replacement in ultrahigh voltage (UHV) transmission lines, which is mainly made of titanium alloy material and weighs more than 27 kg that greatly reduces the working efficiency for operators. Due to the lightweight demand, carbon fiber composite materials are applied to design a new type of clamp, in which mechanical properties of new fixtures need to be fulfilled while considering poor impact resistance and low interlaminar shear strength of carbon fiber composite materials. To excavate a high-strength ply structure, finite element progressive damage strength analysis is employed to evaluate the mechanical properties of three different ply angles of the carbon fiber closed fixture, in which Tsai–Wu strength theory is thought as the strength judgment basis for carbon fiber composite materials. After comparison with the displacement-load curves, the three different ply angles fail to meet the strength requirements. So, a carbon fiber laminate structure with an outer cladding for carbon fiber closed fixtures is raised and verified. The analysis results show that the laminate structure meets the strength requirements. Destructive test of the new closed clamp is conducted to verify the correctness of the proposed method, and the weight is reduced by 36.46%.

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