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Structural Design and Analysis of a Booster Arm Made of a Carbon Fiber Reinforced Epoxy composite material

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Fluid Dynamics & materials Processing 2022年第4期18卷 1083-1088页

作者： Songhua Hu Lixiong Sun Hongying Xiong Baoshan Power Supply Bureau of Yunnan Power Grid Co. Ltd.Baoshan67800China

An analysis of a booster arm made of a carbon fiber reinforced epoxy composite material is conducted by means of a finite element analysis *** mechanical properties are also determined through stretching and compression performance *** is found that the surface treatment of the fibers causes the silane coupling agent to undergo a chemical reaction on the surface of the glass *** used material succeeds in producing significant vibrations damping(vibration attenuation effect is superior to that obtained with conventional alloy materials).

关键词： Study on the performance of carbon fiber composite material power arm structure power arm

IN-PLANE DISPLACEMENT MEASUREMENT OF composite material BY OBJECTIVE SPECKLE

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Acta Mechanica Sinica 1987年第3期3卷 291-297页

作者： Mao Tienxiang Han Jinhu Li Chunxiu Zou Rongda (Institute of Mechanics,Academia Sinica) Institute of Mechanics Academia Sinica Taiwan

The objective speckle was used to measure the in-plane displacement around the hole in acoupon specimen of composite material under tensile *** transplantation method was adopted toensure the high reflectivity of specimen surface and to obtain high quality double exposure *** adjustable spatial frequency of the whole-field pattern of the displacement made it possible to measure abroad range of strain,from elastic to *** results obtained by objective speckle agree well with thoseby Moire method.

关键词： objective speckle composite material displacement measurement Moire method

Analysis of a New composite material for Watercraft Manufacturing

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Journal of Marine Science and Application 2016年第3期15卷 336-342页

作者： Alexandre Wahrhaftig Henrique Ribeiro Ademar Nascimento Milton Filho Department of Construction and Structures Polytechnic School Federal University of Bahia Rua Aristides Novis 02 5° andar Federacao Salvador BA Brazil CEP: 40210-910 Bahia Federal Institute of Education Science and Technology Rua Emidio dos Santos Barbalho Salvador BA Brazil CEP." 40301-015 Brazil CEP." 40210-910 Department of Mechanical Engineering Polytechnic School Federal University of Bahia Rua Aristides Novis 02 5° andar Federagao Salvador BA Brazil CEP." 40210-910 Research and Education Center in composite materials (CEPEC) Avenida Laurindo ROgis 360 Cond. Castro Alves BL. llA AP 412 Bela Vista de Brotas Salvador BA Brazil CEP: 40240-550

In this paper, we investigate the properties of an alternative material for use in marine engineering, namely a rigid and light sandwich-structured composite made of expanded polystyrene and fiberglass. Not only does this material have an improved section modulus, but it is also inexpensive, light, easy to manipulate, and commercially available in various sizes. Using a computer program based on the finite element method, we calculated the hogging and sagging stresses and strains acting on a prismatic boat model composed of this material, and determined the minimum sizes and maximum permissible stresses to avoid deformation. Finally, we calculated the structural weight of the resulting vessel for comparison with another structure of comparable dimensions constructed from the commonly used core material Divinycell.

关键词： naval construction computational analysis composite material sandwich-structure expanded polystyrene fiberglass composite structure concepts finite element method economic viability

Development of a composite material Based on Wood Waste Stabilized with Recycled Expanded Polystyrene

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Open Journal of composite materials 2020年第3期10卷 66-76页

作者： Serge Pacome Kaho Koffi Clément Kouadio Conand Honoré Kouakou Edjikémé Eméruwa Laboratoire de Géomatériaux UFR STRM Université Félix Houphou&#235t Boigny Abidjan C&#244te d’Ivoire

Environmental pollution is a whole world concern. One of the causes of that pollution is the proliferation of plastic waste. Among these wastes there is expanded polystyrene (EPS), mainly from packaging. This study aims to valorize EPS waste by developing a composite material from EPS waste and wood waste. For this purpose, a resin made of EPS has been elaborated by dissolving EPS in acetone. That resin was used as a binder in volume proportions of 15%, 20%, 25% and 30% to stabilize the samples. Some of them were thermoformed. The method of elaboration was based on a device consisting of an extruder for mixing the constituents, and a manual press for shaping and compacting the samples. Analyses show that the drying time depends on the composition of the mixture. Increasing the resin content leads to reduce water absorption and porosity of the samples;it also contributes to homogenize the internal structure of the samples. However, for the same resin contents, the thermoformed samples are less porous;they have more homogeneous internal structure;and absorb less water than non-thermoformed samples.

关键词： Expanded Polystyrene Wood Waste Resin composite material Thermoforming

Study on the Physical and Mechanical Properties of Al-Powder Reinforced Bioactive Glass: Ceramic composite material

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Advances in materials Physics and Chemistry 2022年第2期12卷 19-32页

作者： Muhammad Hafizur Rahman Khan Sazzad Hossain Mohammad Maksudur Rahman Department of Physics International University of Business Agriculture and Technology Dhaka Bangladesh Department of Physics Jahangirnagar University Savar Dhaka Bangladesh

Glass-ceramic samples, having composition of SiO2-35, CaO-45, Na2O-10 and P2O5-10 in weight ratio were prepared through sintering route. Glass powder was reinforced by Al powder. The strength of glass-ceramic composite was found to be temperature dependent, and it varies with the addition of Al powder. Flexural strength increases with the increase of powder addition and sintering temperature, however, decreases with the increase of sintering time. There is an optimum temperature (>1100℃) above which flexural strength of all samples decreases. Bulk density changes to a higher value as the addition of Al-powder increases up to 3% by weight above which density decreases slowly. On the other hand, apparent porosity and water absorption decrease with the increase of percentage of Al powder added. Porosity and water absorption also showed a dependent characteristic on sintering time and sintering temperature.

关键词： Biomaterials Glass Ceramics Aluminum Powder composite material

Fabrication of Silicon/Carbon composite material with Silicon Waste and Carbon Nanofiber Applied in Lithium-Ion Battery

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Journal of Environmental Protection 2022年第1期13卷 150-160页

作者： Ying-Yang Li Che-Ya Wu Tzu-Ying Lin Jenq-Gong Duh Department of materials Science and Engineering NTHU Taiwan

Silicon (Si) is regarded as a promising material for lithium-ion battery anode because of high theoretical capacity. Nevertheless, Si faces particle pulverization and rapid capacity fading due to serious volume change during the lithiation and the delithiation process. In this work, a silicon/carbon composite constituted to Si powder and carbon nanofiber (CNF) is produced to solve the above issues as a new design structure of anode material. The Si powder was recycled from the silicon slicing waste in photovoltaic industry and the CNF was from dry rice straws. By mixing the purified Si powder with CNF, the composite was synthesized by the freeze-drying method and calcination. In the cyclic test, Si adding with 1 wt% CNF showed 3091 mAh/g capacity in the first cycle and 1079 mAh/g capacity after 100 cycles at the current density of 0.5 A/g, which were both better than pristine Si. SEM images also show the composite structure can eliminate cracks on the surface of the electrode during cycling. CNF attaching on Si particles can increase specific surface area, so binder can easily combine the active materials and the conductive materials together. This strategy enhances the structure stability and prevents the electrode from delamination.

关键词： composite material Carbon Nanofiber Waste Silicon Anode material Lithium-Ion Battery

STUDY OF THE PERFORMANCE ON THE WEAR AND FRICTION OF THE C/Cu composite material

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Transactions of Tianjin University 1997年第1期3卷 86-89页

作者：车建明杜玉明卜炎天津大学机械工程系

The friction and wear properties of the C/Cu composite material were investigated. The experiments were conducted on a block on ring type friction machine. It has been found that the friction coefficient and the wear rate of the composite material increase slowly as the pressure is increased in a mild wear state. Scanning electron microscopy and electron probe X ray micro analyzer observations indicate that the low values of μ and W L are due to the formation of a film that impedes adhesion and confers some degree of self lubrication.

关键词： wear rate friction composite material

Preparation and properties of GAGG:Ce/glass composite scintillation material

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Chinese Physics B 2021年第7期30卷 274-282页

作者： Wei-Jie Zhang Qin-Hua Wei Xiao Shen Gao Tang Zhen-Hua Chen Lai-Shun Qin Hong-Sheng Shi College of materials and Chemistry China Jiliang UniversityHangzhou 310018China Xinjiang Technical Institute of Physics&Chemistry Chinese Academy of SciencesUrumqi 830011China

The translucent GGAG:Ce/glass composites are prepared successfully by ball-milling,tableting,and pressureless *** thickness of composites is about 400μ*** x-ray diffraction(XRD),differential scanning calorimetry(DSC),density of composite materials are measured and discussed *** scanning electron microscopy(SEM)and energy dispersive spectrometer(EDS)elemental mapping are employed to analyze the particle size,the shape of powders,and the distribution of GGAG:Ce particles in the glass matrix,*** decay time,ultraviolet,(UV),x-ray excitation luminescence spectra,and temperature spectra are *** results show that the composite materials have high light output,good thermostability,and short decay *** method adopted in this work is an effective method to reduce the preparation time and cost of the *** ultralow afterglow indicates that the composite materials have an opportunity to be used for x-ray detection and imaging.

关键词： GGAG:Ce composite material scintillator glass matrix luminescence properties

Ultrasonic synthesis of Co-Fe Prussian blue analogue/carbon nanotubes composite material and its catalytic application in epoxidation of styrene

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Ultrasonic synthesis of Co-Fe Prussian blue analogue/carbon ...