Gotowe bibliografie tematyczne / Particle-reinforced composites

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Gotowa bibliografia na temat „Particle-reinforced composites”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 14 marca 2023

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Artykuły w czasopismach na temat "Particle-reinforced composites"

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Konopka, Katarzyna. "Particle-Reinforced Ceramic Matrix Composites—Selected Examples". Journal of Composites Science 6, nr 6 (19.06.2022): 178. http://dx.doi.org/10.3390/jcs6060178.

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This paper presents some examples of ceramic matrix composites (CMCs) reinforced with metal or intermetallic phases fabricated by powder consolidation without a liquid phase (melted metal). Composites with a complex structure, which are an advanced group of CMCs called hybrid composites, were described in contrast to conventional composites with a ceramic matrix. In advanced CMCs, their complex structures make it possible to achieve the synergistic effect of the micro- and nanoparticles of the metallic, intermetallic, and ceramic phases on the composite properties, which is not possible in conventional materials. Various combinations of substrates in the form of powder as more than one metal and ceramics with different powder sizes that are used to form hybrid composites were analyzed. The types of CMC microstructures, together with their geometrical schemas and some examples of real ceramic matrix composites, were described. The schemas of composite microstructures showed the possible location of the ceramic, metallic, or intermetallic phases in composites. A new concept of an advanced ceramic–intermetallic composite fabricated by the consolidation of pre-composite powder mixed with ceramic powder was also presented. This concept is based on the selection of substrates, two metals in the form of powder, which will form a new compound, intermetallic material, during processing. Metal powders were milled with ceramic powders to obtain a pre-composite powder consisting of intermetallic material and ceramics. In the next step, the consolidation of pre-composite powder with ceramic powder allows the creation of composites with complex microstructures. Selected examples of real particle-reinforced conventional and hybrid microstructures based on our own investigations were presented. In addition to microstructures, the properties and possible applications of CMCs were analyzed.
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Karabulut, Hasan, Kubilay Karacif, Ramazan Çıtak i Hanifi Çinici. "Corrosion behavior of particle reinforced aluminum composites". Materials Testing 63, nr 12 (1.12.2021): 1157–63. http://dx.doi.org/10.1515/mt-2021-0037.

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Abstract In the study, the corrosion behavior of aluminum matrix composites reinforced with boron carbide (B4C), silicon carbide (SiC) and alumina (Al2O3) were investigated in saltwater (3.5 % NaCl). Composite materials were produced by powder metallurgy. For composite materials production, various reinforcement and aluminum powders were mixed by mechanical alloying for 4 and 10 hours. After mechanical alloying, mixed powders were compacted under 700 MPa pressure and sintered at 600 °C. Electrochemical corrosion tests were applied on specimens in the saltwater solution using potentiodynamic methods. According to the results of the investigation, the best corrosion resistance was obtained by aluminum/B4C and the lowest by aluminum/Al2O3 composites.
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Ramalho, Amilcar, P. Vale Antunes, M. D. Braga de Carvalho, M. Helena Gil i J. M. S. Rocha. "Mechanical Properties of Particle Reinforced Resin Composites". Materials Science Forum 514-516 (maj 2006): 619–23. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.619.

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The objective of the present work is the evaluation of the contents of inorganic particles in the mechanical and tribological behavior of polymeric matrix composites. In order to control easily the production of the specimens, a polyester resin was used as matrix and silica particles were added as inorganic filler. The volumetric particle content was ranged from 0 to 46%. In order to understand the influence of the inorganic load was evaluated the mechanical and tribological behaviors for several percentage of particle content was evaluated. There are several applications of inorganic fillers where their volume percentage is important, namely in dentistry. In posterior restorative resin materials, the particles percentage in volume goes up to 50 or more. In most cases spherical and irregular shaped fillers are dispersed randomly. In the studied composites the filler has irregular shape therefore the connection between the matrix and the particles is more effective. Function of the shape, concentration degree and particle size of the filler the composite mechanical properties vary greatly. All of these factors influence the mechanical properties of the particlereinforced composite, namely: wear resistance, hardness, flexural modulus, flexure strength and toughness The morphology of the failure surfaces was observed by scanning electron microscopy and the results were widely discussed.
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Zhang, Yue Bo, Bernie Ya Ping Zong, Jian Feng Jin i Xin Jian Cao. "Effect of Particulate Reinforcement Electroless Plating on Properties of SiC/Fe Composite". Applied Mechanics and Materials 556-562 (maj 2014): 302–5. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.302.

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SiC particles were coated with copper and nickel respectively through electroless plating process to investigate the plating effect on mechanical properties of SiCp/Fe composites. It shows that tensile strength and final elongation of the composite improve significantly after the plating treatment of SiC particles. Compared with the composite reinforced by uncoated one, the maximum increase of tensile strength is 20.1% reinforced by nickel-coated SiC particles with the particle size of 21μm and volume fraction of 20%. The maximum tensile strength among the SiCp/Fe composites reaches 928.3MPa where the composite is reinforced by nickel-coated SiC particles with the particle size of 13μm and volume fraction of 10%. In contrast with that reinforced by uncoated SiC particles, the highest increment of final elongation is 19.6% reinforced by copper-coated SiC particle with the particle size of 13μm and volume fraction of 20%. Electroless plating on SiC particle surface may effectively prevent the direct contact in the interfaces between the SiC particles which can reduce the risk of micro-crack formation, so as to improve the properties of composite.
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Debnath, Sujan, i Abdul Hamid Abdullah. "Mechanical Performance of Cockle Shell Particles (CSP) and Oil Palm Fibre (OPF) Reinforced Epoxy Composite". International Journal of Engineering Materials and Manufacture 2, nr 3 (14.09.2017): 58–66. http://dx.doi.org/10.26776/ijemm.02.03.2017.03.

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The effects of particle sizes (range 1, 2 and 3) and particle loading (5wt%, 10wt%, 15wt%, 20wt% and 25wt %) on the mechanical properties (tensile and flexural properties), water absorption properties and morphology analysis (optical microscope) of epoxy composites reinforced with cockle shell particles and hybrid epoxy based composite reinforced with cockle shell particles and oil palm fibres were investigated. Pre-chemical treatment of alkaline solution (NaOH) with 5% concentration was used to treat the oil palm fibre prior to the fabrication of composite. Based on the findings, the composite with smaller size and lower loading of cockle shell particle showed higher improvement in mechanical properties. Meanwhile, the hybrid epoxy based composite reinforced with smaller size of cockle shell particle and oil palm fibre showed enhancement in mechanical properties. For water absorption analysis, cockle shell particle-epoxy composites with lower particle loading showed less water uptake.
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Wang, Yanju, Wei Wei, Xiaolei He, Xiang Lan, Aixue Sha i Wenfeng Hao. "Effects of Strength and Distribution of SiC on the Mechanical Properties of SiCp/Al Composites". Materials 15, nr 4 (9.02.2022): 1288. http://dx.doi.org/10.3390/ma15041288.

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In this paper, considering the strength and geometric discrete distribution characteristics of composite reinforcement, by introducing the discrete distribution function of reinforcement, the secondary development of ABAQUS is realized by using the Python language, the parametric automatic generation method of representative volume elements of particle-reinforced composites is established, and the tensile properties of silicon carbide particle-reinforced aluminum matrix composites are analyzed. The effects of particle strength, particle volume fraction, and particle random distribution on the mechanical properties of SiCp/Al composites are studied. The results show that the random distribution of particles and the change in particle strength have no obvious influence on the stress–strain relationship before the beginning of material damage, but have a great influence on the damage stage, maximum strength, and corresponding failure strain. With the increase in particle volume fraction, the damage intensity of the model increases, and the random distribution of particles has a great influence on the model with a large particle volume fraction. The results can provide a reference for the design, preparation, and characterization of particle-reinforced metal matrix composites.
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Cho, Young Tae, Duck Young Yoon i Kwang Hee Im. "Damage Theory for Discontinuously-Reinforced Composites Including Cracked Inhomogeneity". International Journal of Modern Physics B 17, nr 08n09 (10.04.2003): 1801–7. http://dx.doi.org/10.1142/s0217979203019691.

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In particle or short-fiber reinforced composites, cracking of the reinforcements is a significant damage mode because the cracked reinforcements lose load carrying capacity. This paper deals with an incremental damage theory of particle or short-fiber reinforced composites. The composite undergoing damage process contains intact and broken reinforcements in a matrix. To describe the load carrying capacity of the cracked reinforcement, the average stress of a cracked ellipsoidal inhomogeneity in infinite body, which was proposed in the previous paper is introduced. An incremental constitutive relation of particle or short-fiber reinforced composites including the progressive cracking damage of the reinforcements have been developed based on the Eshelby's equivalent inclusion method and Mori and Tanaka's mean field concept. Influence of the cracking damage on the stress-strain response of the composites is demonstrated.
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Kim, Myoung Gyun, Si Young Sung i Young Jig Kim. "Synthesis of In-Situ Titanium Carbide Particle Reinforced Titanium Composites". Materials Science Forum 475-479 (styczeń 2005): 963–66. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.963.

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Titanium carbide particle reinforced titanium composites were prepared by in-situ synthesis reaction between titanium and carbon liquid alloys. The phases constitute and microstructures of titanium composite have been investigated by OM, XRD, SEM and EPMA. Although it was possible to synthesize titanium carbide particle reinforced titanium composites, the morphology of in-situ titanium carbide grows into typically dendritic shape due to the compositional supercooling theory. Using computerized image analysis, the average particle size and aspect ratio of in-situ formed titanium carbide is about 28.1 ㎛ and 1.9, respectively.
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Kim, Shae K., Hyung Ho Jo, Gue Serb Cho, Kyong Whoan Lee i Young Jig Kim. "Cost Effective Particle Reinforced Magnesium Composites". Materials Science Forum 419-422 (marzec 2003): 635–38. http://dx.doi.org/10.4028/www.scientific.net/msf.419-422.635.

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Mishnaevsky, L., M. Dong, S. Hönle i S. Schmauder. "Computational mesomechanics of particle-reinforced composites". Computational Materials Science 16, nr 1-4 (grudzień 1999): 133–43. http://dx.doi.org/10.1016/s0927-0256(99)00055-5.

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Rozprawy doktorskie na temat "Particle-reinforced composites"

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Pisitpaibool, Chandech. "Wear behaviour of ceramic particle reinforced ferrous composites". Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369937.

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Jiang, Jian. "Formability and fracture mechanisms of particle reinforced metal matrix composites". Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360111.

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Pageau, Gilles. "A study of the high strain rate behaviour of particle-reinforced metal matrix composites". Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30031.

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This thesis presents the results of an experimental and analytical study of the high strain rate behaviour of ceramic particle-reinforced metal matrix composites (MMC). Two MMC systems, both based on the 6061-T6 aluminum matrix, were selected. The first is an alumina reinforced system, made by a liquid metallurgy (LM) route, with 10, 15 and 20% particle volume fractions. The second is a silicon carbide system, made by powder metallurgy (PM), with 0, 15 and 30% particle volume fractions. Unreinforced 6061-T6 and 7075-T6 were also included for comparison. Quasi-static tensile tests, Taylor impact tests, and high velocity penetration tests were conducted. The tension test results indicated that the reinforcement strongly affects the stiffness, strength and ductility. Some anisotropy was also observed. The Young's modulus values for both system are in good agreement with predictions from simple two-phase theoretical models. An experimental facility was constructed which is capable of accelerating small cylindrical impactors at velocities up to 1000 m/s and allow for accurate measurement of the impact velocity. The facility was designed so that both Taylor and dynamic penetration tests could be performed with only minor modifications. The Taylor test was used to characterize the strength of the MMC selected under conditions comparable to those existing in dynamic penetration. It consists of impacting short cylindrical specimens on a flat rigid anvil at velocities ranging from 150 to 300 m/s. The dynamic yield strength was determined from measurements of the deformed shape of the specimen using one-dimensional analysis models. The results were shown to be quite dependent on the analysis model used for calculation. Results show that the dynamic strength is noticeably increased over the quasi-static values. The strain rate sensitivity of the MMC materials also appeared to be more pronounced. Measurements of the tested specimen profiles revealed some asymmetry which can be attributed to yield strength anisotropy. The MMC specimens also appeared to be more susceptible to radial cracking at the impact face. The effects of adiabatic heating and inertia within the specimen were also investigated. To assess the relative impact performance of the selected materials, dynamic penetration tests were conducted by firing small rigid tungsten rods with spherical noses on to MMC cylindrical targets with a diameter of 50 mm and a length of 150 mm. Tests were performed at three average impact velocities of 475, 750 and 920 m/s. The cavity profiles were determined from X-ray photographs. The dynamic penetration tests indicate that the PM-processed materials are more resistant to penetration than the LM-processed materials, with the difference being more significant at higher volume fractions. At low velocities (475 m/s) large scale radial cracking of the highly reinforced MMC was observed. The penetration depths were predicted using an approximate cavity expansion model developed for monolithic metals and which involves only a few measurable material properties. Sensitivity studies indicate that, for the intermediate velocity regime investigated in this study, the dynamic strength of the target material is the dominating parameter. Sliding friction at the impactor/target interface was also shown to influence the penetration behaviour to a lesser degree. Using the strength values obtained from the Taylor impact tests, the cavity expansion model predicted depths that were in reasonable agreement with the experimental results.
Applied Science, Faculty of
Materials Engineering, Department of
Graduate
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Khan, Kirity Bhusan. "Processing And Characterization Of B4C Particle Reinforced Al-5%Mg Alloy Matrix Composites". Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/182.

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Metal matrix composites (MMCs) are emerging as advanced engineering materials for application in aerospace, defence, automotive and consumer industries (sports goods etc.). In MMCs, a metallic base material is reinforced with ceramic fiber, whisker or particulate in order to achieve a combination of properties not attainable by either constituent individually. Aluminium or its alloy is favoured as metallic matrix material because of its low density, easy fabricability and good engineering properties. In general, the benefits of aluminium metal matrix composites (AMCs) over unreinforced aluminium alloy are increased specific stiffness, improved wear resistance and decreased coefficient of thermal expansion. The conventional reinforcement materials for AMCs are SiC and AI2O3. In the present work, boron carbide (B4C) particles of average size 40μm were chosen as reinforcement because of its higher hardness (very close to diamond) than the conventional reinforcement like SiC, AI2O3 etc. and of its density (2.52 g cm"3) very close to Al alloy matrix. In addition, due to high neutron capture cross-section of 10B isotope, composites containing B4C particle reinforcement have the potential for use in nuclear reactors as neutron shielding and control rod material. Al-5%Mg alloy was chosen as matrix alloy to utilize the beneficial role of Mg in improving wettability between B4C particles and the alloy melt. (Al-5%Mg)-B4C composites containing 10 and 20 vol% B4C particles were fabricated. For the purpose of inter-comparison, unreinforced Al-5%Mg alloy was also prepared and characterized. The Stir Cast technique, commonly utilized for preparation of Al-SiC, was adapted in this investigation.The Composites thus prepared was subsequently hot extruded with the objective of homogenization and healing minor casting defects. Finally the unreinforced alloy and its composites were characterized in terms of their microstructure, mechanical and thermo-physical properties, sliding wear behaviour and neutron absorption characteristics. The microstructures of the composites were evaluated by both optical microscope and scanning electron microscope (SEM). The micrographs revealed a relatively uniform distribution of B4C particles and good interfacial integrity between matrix and B4C particles. The hot hardness in the range of 25°C to 500°C and indentation creep data in the range of 300°C to 400°C show that hot hardness and creep resistance of Al-Mg alloy is enhanced by the presence of B4C particles. Measurement of coefficient of thermal expansion (CTE) of composites and unreinforced alloy upto 450°C showed that CTE values decrease with increase in volume fraction of reinforcement. Compression tests at strain rates, 0.1, 10 and 100 s-1 in the temperature range 25 - 450 °C showed that the flow stress values of composites were, in general, greater than those of unreinforced alloy at all strain rates. These tests also depicted that the compressive strength increases with increase in volume fraction of reinforcements. True stress values of composites and unreinforced alloy has been found to be a strong function of temperature and strain rate. The kinetic analysis of elevated temperature plasticity of composites revealed higher stress exponent values compared to unreinforced alloy. Similarly, apparent activation energy values for hot deformation of composites were found to be higher than that of self-diffusion in Al-Mg alloy. Tensile test data revealed that the modulus and 0.2% proof stress of composites increase with increase in volume fraction of the reinforcements. Composites containing 10%BUC showed higher ultimate tensile strength values (UTS) compared to unreinforced alloy. However, composites with 20%B4C showed lower UTS compared to that of the unreinforced alloy. This could be attributed to increased level of stress concentration and high level of plastic constraint imposed by the reinforcing jparticles or due to the presence solidification-induced defects (pores and B4C agglomerates ). Sliding wear characteristics were evaluated at a speed of 1 m/s and at loads ranging from 0.5 to 3.5kg using a pin-on-disc set up. Results show that wear resistance of Al-5%Mg increases with the addition of B4C particles. Significant improvement in wear resistance of Al-5%Mg is achieved with the addition of 20% B4C particles. SEM examination of worn surfaces showed no pull-out of reinforcing particles even at the highest load of 3.5 kg, thus confirming good interfacial bonding between dispersed B4C particles and Al alloy matrix. The neutron radiography data proved that (Al-5%Mg)-B4C composites possess good neutron absorbing characteristics. From the experimental data evaluated in the "study, it may be concluded that (Al-5%Mg)-B4C composites could be a candidate material for neutron shielding and control rod application. The enhanced elevated temperature-strength and favourable neutron absorption characteristics of these composites are strong points in favour of this material.
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White, Bradley William. "Microstructure and strain rate effects on the mechanical behavior of particle reinforced epoxy-based reactive materials". Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42801.

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The effects of reactive metal particles on the microstructure and mechanical properties of epoxy-based composites are investigated in this work. To examine these effects castings of epoxy reinforced with 20-40 vol.% Al and 0-10 vol.% Ni were prepared, while varying the aluminum particle size from 5 to 50 microns and holding the nickel particle size constant at 50 microns. In total eight composite materials were produced, possessing unique microstructures. The microstructure is quantitatively characterized and correlated with the composite constitutive response determined from quasi-static and dynamic compressive loading conditions at strain-rates from 1e-4 to 5e3 /s. Microstructures from each composite and at each strain rate were analyzed to determine the amount of particle strain as a function of bulk strain and strain rate. Using computational simulations of representative microstructures of select composites, the epoxy matrix-metallic particle and particle-particle interactions at the mesoscale under dynamic compressive loading conditions were further examined. From computational simulation data, the stress and strain localization effects were characterized at the mesoscale and the bulk mechanical behavior was decomposed into the individual contributions of the constituent phases. The particle strain and computational analysis provided a greater understanding of the mechanisms associated with particle deformation and stress transfer between phases, and their influence on the overall mechanical response of polymer matrix composites reinforced with metallic particles. The highly heterogeneous composite microstructure and the high contrasting properties of the individual constituents were found to drive localized deformations that are often more pronounced than those in the bulk material. The strain rate behavior of epoxy is shown to cause a strain rate dependent deformation response of reinforcement particle phases that are typically strain rate independent. Additionally, the epoxy matrix strength behavior was found to have a higher dependence on strain rate due to the presence of metal particle fillers. Discrepancies between experimental and simulation mechanical behavior results and these findings indicate a need for epoxy constitutive models to incorporate effects of particle reinforcement on the mechanical behavior.
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Gennick, Kendall. "Finite element modeling and simulation of thermomechanical processing of particle reinforced metal matrix composites". Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8410.

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Approved for public release; distribution is unlimited
During the consolidation phase, reinforcement particles of Metal Matrix Composites (MMC's) tend to be non uniformly distributed. The result is that the material properties of the composite materials are not as good as those originally desired. Through large amounts of straining, homogeneity can be achieved. Finite element models of MMC's undergoing different thermomechanical processes (TMP's) to true strains of approximately 1.2 were generated. The models consist of particle clusters within the particle-depleted matrix. The particle clusters were modeled by either a smeared model in which the particles refine the grains in the cluster, or a discrete model of the particles within clusters. The smeared and discrete models qualitatively agreed with each other. The results suggest that the best TMP to reach a state of reinforcement particle homogeneity was a hot worked, low strain rate TMP
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Trautmann, Radoslav. "Effect of Composition on Adhesion Strength Between Particle Filled Composite and Fiber Reinforced Composite". Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-233308.

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Disertační práce se zabývala vlivem adheze mezi vláknovým (FRC) a částicovým (PFC) kompozitem a složením obou komponent na mechanické vlastnosti a způsob porušování modelových bi-materiálových kompozitních těles při statickém namáhání. Zkoumán byl také vliv způsobu přípravy bi-materiálového kompozitního tělesa na pevnost adheze mezi jeho kompozitními komponentami. K hodnocení mechanických vlastností bi-materiálových PFC/FRC těles byl použit jak 3 tak 4-bodový ohybový test za pokojové teploty a relativní vlhkosti 70%. Modifikovaný vytrhávací test byl použit k měření smykové pevnosti adheze mezi vláknovým a částicovým kompozitem. Tyto výsledky byly korelovány s výsledky ze strukturní a fraktografické analýzy (TGA, SEM). Experimentální data byla poté analyzována pomocí existujících mikromechanických modelů a byl nalezen vztah mezi tuhostí modelových bi-materiálových těles, složením a geometrií uspořádání jejich komponent a pevností adheze mezi těmito komponentami. Na základě těchto výsledků byl navržen optimální způsob vrstvení a přípravy PFC/FRC bimateriálových těles. Navržené postupy byly použity k přípravě a pre-klinickým testům nosných konstrukcí zubních můstků.
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Karakas, Mustafa Serdar. "Effect Of Aging On The Mechanical Properties Of Boron Carbide Particle Reinforced Aluminum Metal Matrix Composites". Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608944/index.pdf.

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Metal matrix composites (MMCs) of Al - 4 wt.% Cu reinforced with different volumetric fractions of B4C particles were produced by hot pressing. The effect of aging temperature on the age hardening response of the composites was studied and compared with the characteristics exhibited by the matrix alloy. Reinforcement addition was found to considerably affect the age hardening behavior. Detailed transmission electron microscopy and differential scanning calorimetry observations were made to understand the aging response of the composites. The low strain rate and high strain rate deformation behavior of the MMCs were determined utilizing low velocity transverse rupture tests and true armor-piercing steel projectiles, respectively. Increasing the volume fraction of B4C led to a decrease in flexural strength. The flexural strength vs. strain rate plots showed a slight increase in strength followed by a decrease for all samples. The mechanical performance of the composites and the unreinforced alloy were greatly improved by heat treatment. The MMCs were found to be inferior to monolithic ceramics when used as facing plates in armors.
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Chandrasekaran, Swetha [Verfasser], i Karl [Akademischer Betreuer] Schulte. "Development of nano-particle modified polymer matrices for improved fibre reinforced composites / Swetha Chandrasekaran. Betreuer: Karl Schulte". Hamburg-Harburg : Universitätsbibliothek der Technischen Universität Hamburg-Harburg, 2014. http://d-nb.info/1059804107/34.

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Liu, Jian. "Experimental study and modeling of mechanical micro-machining of particle reinforced heterogeneous materials". Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5408.

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This study focuses on developing explicit analytical and numerical process models for mechanical micro-machining of heterogeneous materials. These models are used to select suitable process parameters for preparing and micro-machining of these advanced materials. The material system studied in this research is Magnesium Metal Matrix Composites (Mg-MMCs) reinforced with nano-sized and micro-sized silicon carbide (SiC) particles. This research is motivated by increasing demands of miniaturized components with high mechanical performance in various industries. Mg-MMCs become one of the best candidates due to its light weight, high strength, and high creep/wear resistance. However, the improved strength and abrasive nature of the reinforcements bring great challenges for the subsequent micro-machining process. Systematic experimental investigations on the machinability of Mg-MMCs reinforced with SiC nano-particles have been conducted. The nanocomposites containing 5 Vol.%, 10 Vol.% and 15 Vol.% reinforcements, as well as pure magnesium, are studied by using the Design of Experiment (DOE) method. Cutting forces, surface morphology and surface roughness are characterized to understand the machinability of the four materials. Based on response surface methodology (RSM) design, experimental models and related contour plots have been developed to build a connection between different materials properties and cutting parameters. Those models can be used to predict the cutting force, the surface roughness, and then optimize the machining process. An analytical cutting force model has been developed to predict cutting forces of Mg-MMCs reinforced with nano-sized SiC particles in the micro-milling process. This model is different from previous ones by encompassing the behaviors of reinforcement nanoparticles in three cutting scenarios, i.e., shearing, ploughing and elastic recovery. By using the enhanced yield strength in the cutting force model, three major strengthening factors are incorporated, including load-bearing effect, enhanced dislocation density strengthening effect and Orowan strengthening effect. In this way, the particle size and volume fraction, as significant factors affecting the cutting forces, are explicitly considered. In order to validate the model, various cutting conditions using different size end mills (100 &"181;m and 1 mm dia.) have been conducted on Mg-MMCs with volume fraction from 0 (pure magnesium) to 15 Vol.%. The simulated cutting forces show a good agreement with the experimental data. The proposed model can predict the major force amplitude variations and force profile changes as functions of the nanoparticles' volume fraction. Next, a systematic evaluation of six ductile fracture models has been conducted to identify the most suitable fracture criterion for micro-scale cutting simulations. The evaluated fracture models include constant fracture strain, Johnson-Cook, Johnson-Cook coupling criterion, Wilkins, modified Cockcroft-Latham, and Bao-Wierzbicki fracture criterion. By means of a user material subroutine (VUMAT), these fracture models are implemented into a Finite Element (FE) orthogonal cutting model in ABAQUS/Explicit platform. The local parameters (stress, strain, fracture factor, velocity fields) and global variables (chip morphology, cutting forces, temperature, shear angle, and machined surface integrity) are evaluated. Results indicate that by coupling with the damage evolution, the capability of Johnson-Cook and Bao-Wierzbicki can be further extended to predict accurate chip morphology. Bao-Wierzbiki-based coupling model provides the best simulation results in this study. The micro-cutting performance of MMCs materials has also been studied by using FE modeling method. A 2-D FE micro-cutting model has been constructed. Firstly, homogenized material properties are employed to evaluate the effect of particles' volume fraction. Secondly, micro-structures of the two-phase material are modeled in FE cutting models. The effects of the existing micro-sized and nano-sized ceramic particles on micro-cutting performance are carefully evaluated in two case studies. Results show that by using the homogenized material properties based on Johnson-Cook plasticity and fracture model with damage evolution, the micro-cutting performance of nano-reinforced Mg-MMCs can be predicted. Crack generation for SiC particle reinforced MMCs is different from their homogeneous counterparts; the effect of micro-sized particles is different from the one of nano-sized particles. In summary, through this research, a better understanding of the unique cutting mechanism for particle reinforced heterogeneous materials has been obtained. The effect of reinforcements on micro-cutting performance is obtained, which will help material engineers tailor suitable material properties for special mechanical design, associated manufacturing method and application needs. Moreover, the proposed analytical and numerical models provide a guideline to optimize process parameters for preparing and micro-machining of heterogeneous MMCs materials. This will eventually facilitate the automation of MMCs' machining process and realize high-efficiency, high-quality, and low-cost manufacturing of composite materials.
Ph.D.
Doctorate
Mechanical and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering
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Książki na temat "Particle-reinforced composites"

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Gennick, Kendall. Finite element modeling and simulation of thermomechanical processing of particle reinforced metal matrix composites. Monterey, Calif: Naval Postgraduate School, 1997.

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1935-, Moslemi A. A., i International Inorganic-Bonded Wood and Fiber Composite Materials Conference (5th : 1996), red. Inorganic-bonded wood and fiber composite materials. Madison, Wis: Forest Products Society, 1997.

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Markovich, John J. Evaluation of microstructure of a 6092 Al - 17.5 volume percent SiC particle reinforced composite using Electron Backscatter Pattern (EBSP) analysis methods. Monterey, Calif: Naval Postgraduate School, 1998.

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Interfaces in Particle and Fibre Reinforced Composites. Elsevier, 2020. http://dx.doi.org/10.1016/c2017-0-03930-7.

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Thomas, Sabu, Kheng Lim Goh, Rangika Thilan De Silva i Aswathi M. K. Interfaces in Particle Reinforced Composites: From Macro to Nano Scales. Elsevier Science & Technology, 2019.

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Fracture of PM hot extruded and cast particle reinforced aluminium matrix composites. 1994.

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Finite Element Modeling and Simulation of Thermomechanical Processing of Particle Reinforced Metal Matrix Composites. Storming Media, 1997.

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Thomas, Sabu, Kheng Lim Goh, Rangika Thilan De Silva i Aswathi M. K. Interfaces in Particle and Fibre Reinforced Composites: Current Perspectives on Polymer, Ceramic, Metal and Extracellular Matrices. Elsevier Science & Technology, 2019.

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Evaluation of Microstructure of a 6092 Al-17.5 Volume Percent SiC particle Reinforced Composite Using Electron Backscatter Pattern (EBSP) Analysis Methods. Storming Media, 1998.

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Części książek na temat "Particle-reinforced composites"

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Hartingsveldt, E. A. A. van. "Detection of Interfacial Debonding in Particle- Reinforced Composites". W Polymer Composites, redaktor Blahoslav Sedlácek, 569–74. Berlin, Boston: De Gruyter, 1986. http://dx.doi.org/10.1515/9783110856934-054.

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Andrianov, Igor V., Jan Awrejcewicz i Vladyslav V. Danishevskyy. "Conductivity of Particle-Reinforced Composites: Analytical Homogenization Approach". W Asymptotical Mechanics of Composites, 101–21. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65786-8_4.

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Andrianov, Igor V., Jan Awrejcewicz i Vladyslav V. Danishevskyy. "Elastic and Viscoelastic Properties of Fibre- and Particle-Reinforced Composites". W Asymptotical Mechanics of Composites, 123–65. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-65786-8_5.

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Roper, Daniel S., Gregory P. Kutyla i Waltraud M. Kriven. "Properties of Cork Particle Reinforced Sodium Geopolymer Composites". W Developments in Strategic Ceramic Materials II, 79–82. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119321811.ch8.

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Dusza, J., i P. Šajgalík. "Fracture Characteristics of Layered and Nano-Particle Reinforced Si3N4". W Advanced Multilayered and Fibre-Reinforced Composites, 187–205. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-007-0868-6_12.

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Huang, X. X., J. S. Hong i J. K. Guo. "SiC Particle and Y-TZP Reinforced Mullite Matrix Composites". W 4th International Symposium on Ceramic Materials and Components for Engines, 795–803. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2882-7_88.

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Müller, F., i J. Monaghan. "Electro Discharge Machining of Particle Reinforced Metal Matrix Composites". W Proceedings of the Thirty-Second International Matador Conference, 425–30. London: Macmillan Education UK, 1997. http://dx.doi.org/10.1007/978-1-349-14620-8_67.

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Horníková, Jana, Pavel Šandera i Jaroslav Pokluda. "On the Crack Tip Shielding in Particle Reinforced Composites". W Materials Science Forum, 311–14. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-964-4.311.

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Ibraheem, Shahad, Sheila Devasahayam, Owen Standard i Sri Bandyopadhyay. "Fabrication and Surface Characterization of Spherical Fly Ash Particle-Reinforced Epoxy Resin". W Spherical and Fibrous Filler Composites, 39–66. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527670222.ch2.

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Aran, Ahmet, i Safak Yilmaz. "Finite Element Analysis of Deformation Behavior in Particle Reinforced Metal Matrix Composites". W Advanced Light Alloys and Composites, 77–86. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9068-6_12.

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Streszczenia konferencji na temat "Particle-reinforced composites"

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Hua, Yi, i Linxia Gu. "Modeling of Nano-Particle Reinforced Resin-Based Dental Composites". W ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87994.

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The objective of this work is to predict the effective material properties of nano-particle reinforced resin-based dental composites using the Mori-Tanaka theory. The results were validated against the finite element simulation of a representative volume element of the microstructure. The influences of nano-particle properties, aspect ratio and volume fraction were examined in terms of effective Young’s modulus and yield strength of the composite. Cohesive material will be used to assess the damage at inter-phase.
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Langat, Hassan K., J. K. Keraita, F. M. Mwema i E. T. Akinlabi. "Mechanical and Thermal Characterization of Silica Particle-Reinforced Polymer Composites". W ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-68595.

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Abstract Polymer based composites are currently used in several fields including automobile, aerospace, biomedical, and domestic applications due to their high strength-to-weight ratio and other attractive properties. In the current study, silica particles are evaluated as reinforcement for three polymers namely, high impact polystyrene (HIPS), general purpose polystyrene (GPPS) and recycled low density polyethylene (rLDPE. The composites were prepared by varying the weight of silica particles in relation to the polymer matrix and then tensile, impact and thermal properties were evaluated using universal tensile testing machine, Charpy impact and differential scanning calorimeter (DSC) respectively. The mechanical results showed that for HIPS-Silica composite, the tensile strength increased with increased silica content from 13.6 MPa for pure HIPS to 13.9 MPa at 5% silica and 14.8 GPa at 31% Silica. GPPS-Silica showed slight increase in tensile strength from 16.2 MPa for pure to 33.8 MPa at 5% silica and reduced to 21.5 MPa at 31%. The rLDPE-silica composite showed reduced tensile strength from 10.4 MPa for recycled HDPE to 10.2 MPa at 5% silica and an increase at 31% silica to 11.7 MPa. The modulus of elasticity for all the samples increased with the increasing silica content. The impact strength was found to increase from 5.6 kJ/m2 for pure PS - GPPS to 8.1 kJ/m2 at 5% silica. There was no remarkable increase in impact strength at 31% silica for PS-PPS. For HIPS composite, the impact reduced from 47 kJ/m2 for pure HIPS to 37 kJ/m2 at 5% silica and 11 kJ/m2 at 31% silica. Thermal results of the composites at 31% silica were compared with pure respective polymers. In terms of thermal and mechanical properties, the general-purpose polystyrene had the highest heat absorption capacity and tensile strength. The modulus of elasticity was also reported highest in the general-purpose polystyrene composite. The results showed slight change in glass transition temperature and an increased heat absorption property when silica was added to respective polymers. Based on the results, natural silica (diatomite)-based composites may be used as green construction materials.
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Xue, Peng-Hao, Gui-Hong Geng, Li-Meng Liu i Yong-Quan Li. "PREPARATION TECHNOLOGIES FOR PARTICLE REINFORCED ZA ALLOYS COMPOSITES". W 2015 International Conference on Material Engineering and Mechanical Engineering (MEME2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814759687_0136.

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Ferranti, Louis, Jennifer L. Jordan, Richard D. Dick, Naresh N. Thadhani, Mark Elert, Michael D. Furnish, Ricky Chau, Neil Holmes i Jeffrey Nguyen. "SHOCK HUGONIOT BEHAVIOR OF PARTICLE REINFORCED POLYMER COMPOSITES". W SHOCK COMPRESSION OF CONDENSED MATTER - 2007: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2008. http://dx.doi.org/10.1063/1.2832944.

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White, Bradley W., Harry Keo Springer, Jennifer L. Jordan, Jonathan E. Spowart i Naresh Thadhani. "Mesoscale simulations of particle reinforced epoxy-based composites". W SHOCK COMPRESSION OF CONDENSED MATTER - 2011: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2012. http://dx.doi.org/10.1063/1.3686248.

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Liu, H. T., L. Z. Sun i J. W. Ju. "An Interfacial Debonding Model for Particle-Reinforced Composites". W ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33106.

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To simulate the evolution process of interfacial debonding between particle and matrix, and to further estimate its effect on the overall elastic behavior of particle-reinforced composites, a two-level microstructural-effective damaged model is developed. The microstructural damage mechanism is governed by the interfacial debonding of reinforcement and matrix. The progressive damage process is represented by the debonding angles that are dependent on the external loads. For those debonded particles, the elastic equivalency is constructed in terms of the stiffness tensor. Namely, the isotropic yet debonded particles are replaced by the orthotropic perfect particles. The volume fraction evolution of debonded particles is characterized by the Weibull’s statistical approach. Mori-Tanaka’s method is utilized to determine the effective stiffness tensor of the resultant multi-phase composites. The proposed constitutive framework is developed under the general three-dimensional loading condition. Examples are conducted to demonstrate the capability of the proposed model.
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Sadeghipour, Keyanoush, Wenhai Wang i George Baran. "Toward Improving Fracture Toughness of Particle-Reinforced Polymer Matrix Composites". W ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66221.

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Experimental results have shown that polymer composites that have high fracture toughness tend to have high fatigue wear resistance. The work of fracture found in nacre (mother of pearl) is several orders of magnitude larger than the ceramic (aragonite) it is made of. The organic protein layers in the composite play a significant role in the mechanical response of nacre to stress. In this study, we hope to understand if an energy absorbing interphase similar to that found in nacre could have potential for toughening traditional, glass-particle-reinforced polymer composites. A multi-scale finite element model (FEM) has been developed to study the interaction between the crack and the reinforced particles. In this model, crack nucleation and propagation and the effect of particle/matrix/interphase material properties can all be characterized by the cohesive element and its traction-separation behavior. Loss of load carrying capacity begins when local deformation reaches a certain value, leading to the degradation of the material. Completely degraded elements form a traction-free crack surface. The most important advantage of this methodology for modeling fracture behavior is that macroscopic fracture criteria are not needed. 3-point bending macro-scale FEM serves to calibrate the deformation gradient of the study zone in front of the crack tip. A microscopic unit cell model was used to simulate the crack propagation. Three types of interphase were compared: (1) matrix and particle bonded without interphase, (2) matrix and particle bonded with silane interphase, and (3) matrix and particle bonded with beta-peptide (highly stretchable) interphase. Results show that the stress distribution around the filler and the bulk mechanical properties of the composite can be affected by changes in interfacial properties. Particle-reinforced polymer composites with a more compliant and stretchable interphase (e.g. beta-peptide) will help absorb local strain energy while remaining intact, allowing less damage within the matrix. This type of interphase decreases crack propagation speed and results in an increase of fracture toughness.
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OKABE, TOMONAGA, SHOHEI NATSUI i SOTA ONODERA. "Numerical Modelling of Impact Damage in Fibre-Reinforced Plastic Composites with Smoothed Particle Hydrodynamics". W American Society for Composites 2018. Lancaster, PA: DEStech Publications, Inc., 2018. http://dx.doi.org/10.12783/asc33/26072.

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Gentile, Lorenzo, Martin Zaefferer, Dario Giugliano, Haofeng Chen i Thomas Bartz-Beielstein. "Surrogate assisted optimization of particle reinforced metal matrix composites". W GECCO '18: Genetic and Evolutionary Computation Conference. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3205455.3205574.

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Mohankumararadhya, H. M., Pramod Wadappi, A. Chandrashekar i Yuvaraj Naik. "Studies on bio waste product particle reinforced polymer composites". W PROCEEDINGS OF INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS RESEARCH (ICAMR - 2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0022746.

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Raporty organizacyjne na temat "Particle-reinforced composites"

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Datta, Subhendu K. Dynamic Behavior of Fiber and Particle Reinforced Composites. Fort Belvoir, VA: Defense Technical Information Center, marzec 1993. http://dx.doi.org/10.21236/ada266905.

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Williams, Cyril L. Size-Dependent Strengthening Of Particle-Reinforced Aluminum Matrix Composites. Fort Belvoir, VA: Defense Technical Information Center, maj 2011. http://dx.doi.org/10.21236/ada550717.

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