Gotowe bibliografie tematyczne / Materials

Gotowa bibliografia na temat „Materials”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 lipca 2024

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Artykuły w czasopismach na temat "Materials"

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Kishimoto, Satoshi, i Norio Shinya. "Fabrication of Metallic Closed Cellular Materials for Multi-functional Materials(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering Division.)". Reference Collection of Annual Meeting 2004.8 (2004): 314–15. http://dx.doi.org/10.1299/jsmemecjsm.2004.8.0_314.

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AA VV, AA VV. "Dental materials/Materiali dentari". Dental Cadmos 01, nr 01 (lipiec 2022): 135. http://dx.doi.org/10.19256/abstract.cduo.08.2022.

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AA VV, AA VV. "Dental materials/Materiali dentari". Dental Cadmos 01, nr 01 (wrzesień 2023): 155. http://dx.doi.org/10.19256/abstract.cduo.08.2023.

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Paton, B. E., i V. I. Trefilov. "Proposals for the ISS: Production of new unique materials in space («Material» Project)". Kosmìčna nauka ì tehnologìâ 6, nr 4 (30.07.2000): 20–21. http://dx.doi.org/10.15407/knit2000.04.020.

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Nishi, Yosihtake. "2004 Research for Intelligent Materials & System(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering Division.)". Reference Collection of Annual Meeting 2004.8 (2004): 312–13. http://dx.doi.org/10.1299/jsmemecjsm.2004.8.0_312.

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Lee, In. "Application of Smart Materials to Improve the Structural Performance(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering Division.)". Reference Collection of Annual Meeting 2004.8 (2004): 272–73. http://dx.doi.org/10.1299/jsmemecjsm.2004.8.0_272.

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GORCZYCA, GRZEGORZ. "BIOPOLYMERS IN DESIGNING MODERN ANTIMICROBIAL MEDICAL MATERIALS. Part I. BIOPOLYMER MEDICAL MATERIALS — COLLAGEN, CHITOSAN". Polimery 56, nr 10 (październik 2011): 709–15. http://dx.doi.org/10.14314/polimery.2011.709.

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Pereira, Fábio Rocha, Érika Cristina Nogueira Marques Pinheiro i Reginaldo Beserra Alves. "Materiais de construção alternativos / Alternative construction materials". Brazilian Journal of Development 7, nr 11 (30.11.2021): 109965–81. http://dx.doi.org/10.34117/bjdv7n11-564.

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Zanotto, Edgar Dutra. "Materials Research: Revista Ibero-americana de Materiais". Materials Research 4, nr 4 (październik 2001): 229. http://dx.doi.org/10.1590/s1516-14392001000400001.

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Furuya, Yasubumi, i T. Okazaki. "Recent Progress of Rapid-Solidified Multi-Functional Actuator/Sensor Materials and Devices for Smart Man/Material Interface and Systems(International Workshop on Smart Materials and Structural Systems, W03 Jointly organized by Material & Processing Division, Material & Mechanics Division, Dynamics & Control Division and Space Engineering Division.)". Reference Collection of Annual Meeting 2004.8 (2004): 294–95. http://dx.doi.org/10.1299/jsmemecjsm.2004.8.0_294.

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Rozprawy doktorskie na temat "Materials"

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Sobrosa, Fabiano Zanini. "Desenvolvimento de materiais cerâmicos refratários com adição da sílica residual proveniente da queima da casca de arroz". Universidade Federal do Pampa, 2014. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/767.

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Com a intenção de agregar valor à cinza da casca de arroz, subproduto da indústria orizícola, e colaborar para um desenvolvimento sustentável do país, esta pesquisa buscou desenvolver materiais cerâmicos refratários com a substituição parcial da argila pela sílica de casca de arroz (SCA) produzida a partir da geração de energia elétrica. Atualmente, na região da fronteira oeste do Estado do Rio Grande do Sul, existem várias usinas termoelétricas de biomassa para geração de energia elétrica através da queima da casca de arroz. Essa tecnologia vem ao encontro da necessidade de diversificação da matriz energética no país. A indústria orizícola produz no Brasil aproximadamente 12 milhões de toneladas por ano de arroz, e aproximadamente 2,5 milhões de toneladas por ano são convertidos em casca. Caso toda esta casca fosse queimada, gerar-se-iam aproximadamente 500 mil toneladas de cinza, a qual é rica em sílica. Portanto, viabilizar seu aproveitamento tende a reduzir o passivo ambiental, além dos benefícios econômicos. No presente trabalho foi analisado o efeito da substituição parcial da argila refratária por sílica da casca de arroz (SCA) nas propriedades mecânicas e termomecânicas dos materiais cerâmicos refratários produzidos, em percentuais de 5, 10 e 20%. Foram analisadas as propriedades mecânicas desses materiais através de ensaios de resistência à compressão, tração direta, flexão em três pontos e dureza superficial Vickers. Analisaram-se também a retração linear, absorção de água, porosidade aparente e resistência ao choque térmico. Conforme se aumentou a substituição parcial de argila refratária por SCA, foi obtido um melhor empacotamento da mistura granular e, consequentemente, ocorreu uma melhora nas propriedades mecânicas das amostras. Por outro lado, o material apresentou-se mais frágil, com menor resistência ao choque térmico. Não foi encontrada variação na retração linear após a queima, já a absorção de água e porosidade aparente diminuíram conforme se aumentou a substituição da argila pela SCA. A microestrutura do material foi analisada através de análise por microscopia eletrônica de varredura (MEV) e difração de raios-x, onde se identificaram as fases cristalinas na mineralogia do material resultante. Na análise da mineralogia do material observou-se um aumento de pico de cristobalita conforme se aumentou o teor de SCA na mistura, em função da cristalização da sílica livre. Um menor volume de porosidade foi encontrado conforme se aumentou o teor de substituição de argila pela SCA.
With the intention of adding value to rice husk ash, a byproduct of paddy industry, and contribute to sustainable development of the country, this research sought to develop refractory ceramic materials with refractory partial replacement of clay by silica from rice husk (SCA) produced from electricity generation. Currently on the western border of the State of Rio Grande do Sul, there are several biomass power plants for generating electricity by burning rice husk. This technology comes against the need for diversification of energy sources in the country. The paddy industry in Brazil produces approximately 12 million tons of rice per year, of which approximately 2.5 million tons per year are converted into shell. If all this bark was burned, it would generate approximately 500 tons of ash, which is rich in silica. Thus enabling its use tends to reduce the environmental liability beyond economic benefits. In the present work, the effect of partial replacement of silica refractory clay for rice husk (SCA) on the mechanical and thermomechanical properties of refractory ceramic materials was analyzed for percentages of 5, 10 and 20%. The mechanical properties of these materials were analyzed by testing compressive strength, direct-drive, three point bending and superficial hardness. We also analyzed the linear shrinkage, water absorption, apparent porosity and resistance to thermal shock. As increased the partial replacement of refractory clay for SCA in the mixture was obtained a better packing of the granular mixture and, consequently, better results in mechanical properties were found. On the other hand, the material appeared more brittle, with a lower thermal shock resistance. Was not found in the linear shrinkage after firing, the water absorption and apparent porosity decreased as the clay was increased by replacement SCA. The microstructure of the material was analyzed by scanning electron microscopy (MEV) and x-ray diffraction where the crystalline phases identified in the mineralogy of the resulting material. The analysis of the mineralogy of the material was observed an increase of cristobalite peak was increased as the content of SCA, depending on the crystallization of the free silica. A smaller volume of porosity is found according to the increased content of clay replacement SCA.
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Braconnier, Daniel J. "Materials Informatics Approach to Material Extrusion Additive Manufacturing". Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-theses/204.

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Process-structure-property relationships in material extrusion additive manufacturing (MEAM) are complex, non-linear, and poorly understood. Without proper characterization of the effects of each processing parameter, products produced through fused filament fabrication (FFF) and other MEAM processes may not successfully reach the material properties required of the usage environment. The two aims of this thesis were to first use an informatics approach to design a workflow that would ensure the collection of high pedigree data from each stage of the printing process; second, to apply the workflow, in conjunction with a design of experiments (DOE), to investigate FFF processing parameters. Environmental, material, and print conditions that may impact performance were monitored to ensure that relevant data was collected in a consistent manner. Acrylonitrile butadiene styrene (ABS) filament was used to print ASTM D638 Type V tensile bars. MakerBot Replicator 2X, Ultimaker 3, and Zortrax M200 were used to fabricate the tensile bars. Data was analyzed using multivariate statistical techniques, including principal component analysis (PCA). The magnitude of effect of layer thickness, extrusion temperature, print speed, and print bed temperature on the tensile properties of the final print were determined. Other characterization techniques used in this thesis included: differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and scanning electron microscopy (SEM). The results demonstrated that printer selection is incredibly important and changes the effects of print parameters; moreover, further investigation is needed to determine the sources of these differences.
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Skerry, Nathaniel S. (Nathaniel Standish) 1971. "Transformed materials : a material research center in Milan, Italy". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/70358.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2002.
Includes bibliographical references (p. 74-75).
[Transformed Materials] is an exploration into today's design methodologies of architecture production. The emergence of architectural form is questioned in relation to the temporal state of design intent and the physical material construct. At a time when there is an increased awareness of the current state of technology, material innovation and methods of fabrication, there are new speculations of what materiality is and can be. This thesis will propose an architecture that emerges through an exploration of the material concept that directly informs and expresses the fundamental ideas of the project. Building methods have changed widely over time, and are co-responsible for creating a dialog between functional requirements, technological invention, and material implication that reflects the current cultural state. Today's architectural products have in a sense reverted back to thin surfaces. Current cultural issues such as socioeconomic, environmental impact, transportability, efficiency, lightness, storability, technology, and mass production, have over time created a state of "thinness ". This project tries to offset the current trend of building by accepting the norms of architectural products, and reinventing their role within a contemporary language that explores more deeply the material qualities and properties associates with it. This thesis will use steel as the primary building material. Steel is a material that has become standardized in how it is shaped and formed, thus its ability to produce an architecture has been reduced purely to a dogmatiC approach of engineered solutions or preconceived results. Steel, is artificial by nature; if we suspend our preconceptions of steel, could the material be designed such that its role is critical in defining space, structure and program in a tectonic system? The area of research and examination will be focused on the design of a Material Research Center (mRC). located in Milan, Italy.
by Nathaniel S. Skerry.
M.Arch.
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Martin, Luke Andrew. "A Novel Material Modulus Function for Modeling Viscoelastic Materials". Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/26891.

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Accurately modeling damping in engineering structures has plagued scientist and engineers for decades. The integration of viscoelastic materials into engineering structures can reduce undesired vibrations and serve as an effective passive control mechanism. Various techniques have been developed to model viscoelastic materials. The growing popularity of finite element analysis in the 1980s and 1990s spawned new techniques for modeling damping in complex structures. The technique defined in this dissertation can be incorporated into finite element models. In metals, the modulus of elasticity can be modeled as a constant. That is, the modulus of elasticity is not treated as a function of frequency in dynamic models. For viscoelastic materials, the modulus of elasticity can be assumed to be constant for static forces and sinusoidal forcing functions. However, when viscoelastic materials undergo excitations from a random or transient forcing function the constant modulus of elasticity assumption may not be valid. This is because the second order equation of motion has non-constant coefficients or coefficients that vary as a function of frequency. The Golla-Hughes-McTavish (GHM) method is a technique used to incorporate the frequency dependency of viscoelastic materials into finite element models. The GHM method is used as a way to alleviate working with second order differential equations with non-constant coefficients. This dissertation presents the theory for a new material modulus function suitable for application within the framework of the GHM method. However, the new material modulus function uses different assumptions and is referred to as the Modified GHM method or MGHM method. The MGHM method is shown to improve the curve fit and damping characteristics of the GHM method. Additionally, the MGHM method is shown to reduce to the GHM method when the original GHM assumptions are imposed.
Ph. D.
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Samsonow, Emily L. "Material Celebration: Exploring the Architectural Potential of Waste Materials". University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1306501078.

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Freitas, Ricardo Luiz Barros de [UNESP]. "Fabricação, caracterização e aplicações do compósito PZT/PVDF". Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/100281.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Um material compósito é constituído pela combinação de dois ou mais materiais, onde se procura sintetizar um novo material multifásico, e que abrigue as melhores características individuais de cada um de seus constituintes. Compósitos de polímeros (matriz) e ferroelétricos (inclusões) podem manifestar piezoeletricidade, ou seja, a produção de uma resposta elétrica devido a uma excitação mecânica, e vice-versa. Nesta tese o material polimérico usado para preparar os filmes ou lâminas de nanocompósitos é o PVDF, e, o material cerâmico é formado por nanopartículas de PZT. Ambos os materiais são dielétricos, porém, com características muito distintas (por exemplo, o PVDF tem aproximadamente 1/4 da densidade e 1/250 da constante dielétrica do PZT). O PZT é muito utilizado em transdutores, principalmente devido aos seus elevados coeficientes piezoelétricos, contudo, é quebradiço e sofre desgaste quando empregado na forma de filmes ou lâminas. Por outro lado, o PVDF é um polímero piezoelétrico que apresenta grande flexibilidade e excelentes resistências mecânica e química, porém, seus coeficientes piezoelétricos são apenas moderados. A fim de se aumentar a flexibilidade do PZT, mistura-se o pó cerâmico, na forma de nanopartículas, com o PVDF, também pulverizado. Na tese, evidencia-se que o compósito constituído por esta combinação cerâmica-polímero proporciona uma nova classe de materiais funcionais com grande potencial de aplicação, por terem combinadas a resistência e rigidez das cerâmicas, e, a elasticidade, flexibilidade, baixa densidade e elevada resistência a ruptura mecânica dos polímeros. O novo material tem grande resistência a choques mecânicos, flexibilidade, maleabilidade, e, principalmente, coeficientes piezoelétricos relativamente elevados. Amostras do compósito...
A composite material is constituted by the combination of two or more materials, which synthesizes a new multiphase material, and has the best individual characteristics of each of its constituents. Polymer composites (matrix) and ferroelectric (inclusions) can express piezoelectricity, i.e. the production of an electrical response due to a mechanical excitation, and vice versa. In this thesis the polymeric material used to prepare the films or slides of nanocomposites is the PVDF, and, ceramic material is formed by PZT nanoparticles. Both materials are dielectrics, however, with very different characteristics (for example, the PVDF is approximately 1/4 density and 1/250 relative permittivity from PZT). The PZT is widely used in transducers, mainly due to their high piezoelectric coefficients, however, is brittle and suffers wear and tear when employed in the form of films or slides. On the other hand, the PVDF is a piezoelectric polymer that offers great flexibility and excellent mechanical and chemical resistances, however, its piezoelectric coefficients are only moderate. In order to increase the flexibility of PZT, ceramic powder is mix, in the form of nanoparticles, with PVDF, also sprayed. In theory, it becomes evident that composite consisting of this ceramic- polymer combination delivers a new class of functional materials with great potential for application, because they combine the strength and rigidity of ceramics, and elasticity, flexibility, low density and high resistance to mechanical disruption of polymers. The new material has great resistance to mechanical shock, flexibility, suppleness, and, primarily, relatively high piezoelectric coefficients. PZT/PVDF composite samples were fabricated and characterized aiming to applications such as: piezoelectric actuators, acoustic emission detectors, and energy... (Complete abstract click electronic access below)
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Freitas, Ricardo Luiz Barros de. "Fabricação, caracterização e aplicações do compósito PZT/PVDF /". Ilha Solteira, [s.n.], 2012. http://hdl.handle.net/11449/100281.

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Orientador: Aparecido Augusto de Carvalho
Coorientador: Antônio de Pádua Lima Filho
Banca: Cláudio Kitano
Banca: João Antonio Pereira
Banca: Adriano Rogério Bruno Tech
Resumo: Um material compósito é constituído pela combinação de dois ou mais materiais, onde se procura sintetizar um novo material multifásico, e que abrigue as melhores características individuais de cada um de seus constituintes. Compósitos de polímeros (matriz) e ferroelétricos (inclusões) podem manifestar piezoeletricidade, ou seja, a produção de uma resposta elétrica devido a uma excitação mecânica, e vice-versa. Nesta tese o material polimérico usado para preparar os filmes ou lâminas de nanocompósitos é o PVDF, e, o material cerâmico é formado por nanopartículas de PZT. Ambos os materiais são dielétricos, porém, com características muito distintas (por exemplo, o PVDF tem aproximadamente 1/4 da densidade e 1/250 da constante dielétrica do PZT). O PZT é muito utilizado em transdutores, principalmente devido aos seus elevados coeficientes piezoelétricos, contudo, é quebradiço e sofre desgaste quando empregado na forma de filmes ou lâminas. Por outro lado, o PVDF é um polímero piezoelétrico que apresenta grande flexibilidade e excelentes resistências mecânica e química, porém, seus coeficientes piezoelétricos são apenas moderados. A fim de se aumentar a flexibilidade do PZT, mistura-se o pó cerâmico, na forma de nanopartículas, com o PVDF, também pulverizado. Na tese, evidencia-se que o compósito constituído por esta combinação cerâmica-polímero proporciona uma nova classe de materiais funcionais com grande potencial de aplicação, por terem combinadas a resistência e rigidez das cerâmicas, e, a elasticidade, flexibilidade, baixa densidade e elevada resistência a ruptura mecânica dos polímeros. O novo material tem grande resistência a choques mecânicos, flexibilidade, maleabilidade, e, principalmente, coeficientes piezoelétricos relativamente elevados. Amostras do compósito... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: A composite material is constituted by the combination of two or more materials, which synthesizes a new multiphase material, and has the best individual characteristics of each of its constituents. Polymer composites (matrix) and ferroelectric (inclusions) can express piezoelectricity, i.e. the production of an electrical response due to a mechanical excitation, and vice versa. In this thesis the polymeric material used to prepare the films or slides of nanocomposites is the PVDF, and, ceramic material is formed by PZT nanoparticles. Both materials are dielectrics, however, with very different characteristics (for example, the PVDF is approximately 1/4 density and 1/250 relative permittivity from PZT). The PZT is widely used in transducers, mainly due to their high piezoelectric coefficients, however, is brittle and suffers wear and tear when employed in the form of films or slides. On the other hand, the PVDF is a piezoelectric polymer that offers great flexibility and excellent mechanical and chemical resistances, however, its piezoelectric coefficients are only moderate. In order to increase the flexibility of PZT, ceramic powder is mix, in the form of nanoparticles, with PVDF, also sprayed. In theory, it becomes evident that composite consisting of this ceramic- polymer combination delivers a new class of functional materials with great potential for application, because they combine the strength and rigidity of ceramics, and elasticity, flexibility, low density and high resistance to mechanical disruption of polymers. The new material has great resistance to mechanical shock, flexibility, suppleness, and, primarily, relatively high piezoelectric coefficients. PZT/PVDF composite samples were fabricated and characterized aiming to applications such as: piezoelectric actuators, acoustic emission detectors, and energy... (Complete abstract click electronic access below)
Doutor
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Freitas, Jefferson Arlen. "Sintese e caracterização de biossorventes a partir da imobilização da biomassa Sargassum sp em matrizes ceramicas pelo processo sol-gel". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266214.

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Orientador: Elias Basile Tambourgi
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
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Resumo: Este trabalho tratou da pesquisa e desenvolvimento de um adsorvente alternativo, aplicável no tratamento de rejeitos líquidos industriais, contendo baixas concentrações dos metais pesados Cd, Cu e Zn. Ele teve como objetivo geral produzir esferas adsorventes de zeólita 4A - Sargassum sp. com custo de produção competitivo e com elevada capacidade de captura dos metais pesados Cd, Cu e Zn, nas quais o processo de adsorção ocorra com elevada eficiência e com cinética favorável. A produção das esferas envolveu uma abordagem inovadora do Processo Sol - Gel, a qual permitiu produzir sete tipos de esferas, partindo da combinação e imobilização de adsorventes tradicionais pesquisados: biomassa Sargassum sp., caulim, alumina e zeólita. Este processo de imobilização das partículas dos adsorventes tradicionais causa uma obstrução dos poros e canais existentes nestas partículas e, com isto, reduz a capacidade de captura dos metais pesados nas esferas resultantes. Felizmente, a combinação de adsorventes realizada viabilizou a obtenção de esferas adsorventes com elevada capacidade de captura de metais pesados e com cinética favorável. É o caso das esferas de zeólita 4A, com capacidade máxima de captura de Cd+Cu+Zn de 746 µmol/g, com uma velocidade de captura aproximada de 18 µmol/g.h e com uma eficiência de captura de 82% e das esferas de zeólita 4A - 50% em peso de Sargassum sp., com capacidade máxima de captura de Cd+Cu+Zn de 709 µmol/g, com uma velocidade de captura aproximada de 20 µmol/g.h e com uma eficiência de captura de 83%. O comportamento de adsorção destas esferas se ajustou ao modelo de equilíbrio de Freundlich. Elas possuem uma cinética de adsorção compatível com o modelo cinético de pseudo-segunda ordem. Ao tratarem um efluente industrial real, estas esferas apresentam uma eficiência de captura de Cd+Cu+Zn =90% enquanto que numa resina quelante comercial esta eficiência é de 99,5%. Tem-se, pois, esferas adsorventes com elevada eficiência e baixo custo de produção, tornando-as um bom adsorvente para aplicação no tratamento de efluentes líquidos industriais com baixa concentração de Cd, Cu e Zn
Abstract: In this work had been made a research and the development of an alternative adsorbent which may be applied in the treatment of industrial liquid effluents containing low concentration of heavy metals, Cd, Cu and Zn. The main objective was to produce 4A type zeolite-Sargassum sp. adsorbents spheres with the following characteristics: competitive fabrication cost; high uptake capacity of the heavy metals, Cd, Cu and Zn; high affinity by the referred heavy metals; and appropriated adsorption kinetic. The marking of the adsorbents spheres had involve the innovative use of the Sol-gel Process. That had permitted to obtain seven types of adsorbents spheres for combination and immobilization of the particles of traditional adsorbents Sargassum sp., kaolin, alumina and 4A type zeolite. This immobilization process causes an obstruction of the pores and the channels present in these particles that reduced the uptake capacity of the produced adsorbents spheres. Fortunately, the combination of traditional adsorbents particles produced adsorbent spheres with high uptake capacity, high uptake efficiency, and appropriate adsorption kinetic. As, two types of adsorbent spheres, 4A type zeolite and 4A type zeolite-50% Sargassum sp. adsorbed 746 µmol/g and 709 µmol/g with an adsorption velocity of 18 µmol/g.h and 20 µmol/g.h, and a uptake efficiency of 82% and 83%, respectively. The adsorption behavior of these adsorbent spheres had been fitting to the Freundlich model. They have an adsorption kinetic compatible with the pseudo-second order model. When it treated an industrial liquid effluent with these adsorbent spheres, they showed a uptake efficiency higher than 90% and while an uptake efficiency of 99,5% is shown for the commercial chelant resin
Doutorado
Sistemas de Processos Quimicos e Informatica
Doutor em Engenharia Química
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Karlsson, Johan. "Composite material in car hood : Investigation of possible sandwich materials". Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-45633.

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Wretborn, Joel. "Modelling cracks in solid materials using the Material Point Method". Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-136797.

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This thesis investigates a novel way to simulate cracks as an extension of the Mate- rial Point Method (MPM). Previous methods, like CRAMP (CRAcks with Material Points), often use an explicit crack representation to define the material crack. We use an implicit crack representation defined as the intersection between pieces of the original specimen created by a pre-fracture process. Material chunks are there- after forced together using massless particle constraints. The method has proven successful in tearing scenarios, and the main benefits are: (1) minor computational overhead compared to the initial MPM algorithm; (2) simple to implement and scales well in 3 dimensions; (3) gives easy and controllable setup phase for desired material failure mode. The development of the crack extension has required a fully general MPM solver that can handle arbitrarily many distinct bodies connected in the same simulation. Current collision schemes for MPM exists, however these are often focused on two-body collisions and does not scale well for additional objects due to inaccuracies in contact normal calculations. We present a method that uses an iterative pair-wise comparison scheme to resolve grid collisions that extends to any number of collision objects.
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Książki na temat "Materials"

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Stoller, Roger E., Rudy J. M. Konings, Todd R. Allen i Shinsuke Yamanaka. Comprehensive nuclear materials: Material performance and corrosion/waste materials. Amsterdam: Elsevier, 2012.

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Prasad, N. Eswara, i R. J. H. Wanhill, red. Aerospace Materials and Material Technologies. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2134-3.

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Prasad, N. Eswara, i R. J. H. Wanhill, red. Aerospace Materials and Material Technologies. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-2143-5.

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Sundarkrishnaa, K. L. Friction Material Composites: Materials Perspective. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

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Koohgilani, Mehran. Advanced composite materials: Composite material's history. Poole: Bournemouth University, 2001.

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Symposium de Materiales Poliméricos (1987 San Sebastián, Spain). Material polimerikoei buruzko symposiuma =: Symposium de Materiales Poliméricos = Symposium on Polymer Materials. Gasteiz: Eusko Jaurlaritzaren Argitalpen-Zerbitzu Nagusia, 1988.

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1981-, Laughlin Zoe, red. Material matters: New materials in design. London: Black Dog Pub., 2012.

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United States. Bureau of Mines., red. Material use patterns, intermaterial competition, advanced materials technologies: Information & analysis materials program. Washington, D.C.?: U.S. Dept. of the Interior, Bureau of Mines, 1991.

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Gifford, Clive. Materiales (Materials). Altea, 2006.

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Snedden, Robert. Material World: Changing Materials / Separating Materials / Materials Technology / Solids Liquids and Gases (Material World) (Material World). Heinemann Educational Books - Library Division, 2001.

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Części książek na temat "Materials"

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Munteán, László, i Liedeke Plate. "Introduction: Materials Matter". W Edition Kulturwissenschaft, 13–34. Bielefeld, Germany: transcript Verlag, 2023. http://dx.doi.org/10.14361/9783839466971-002.

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In the introduction of the volume Materials of Culture, László Munteán and Liedeke Plate advocate for a 'materials turn' within the larger sweep of the material turn in the humanities and the social sciences. Drawing on theories of material culture studies, new materialism, and material agency, as well as on recent scholarship in anthropology, archaeology, and art history, the authors lay the groundwork for a materials-based perspective in cultural studies. Rather than taking objects, things, and the concept of materiality, as points of departure for analysis, this perspective focuses on materials and highlights their relevance to culture and vice versa.
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Mulder, Marcel. "Materials and Material Properties". W Basic Principles of Membrane Technology, 17–53. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-017-0835-7_2.

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Yucel, Taner, Esra Yildiz i Ugur Erdemir. "Material Selection: Restorative Materials". W Esthetic and Functional Management of Diastema, 185–96. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24361-0_13.

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Mulder, Marcel. "Materials and Material Properties". W Basic Principles of Membrane Technology, 22–70. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1766-8_2.

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Knowles, Kim. "Materials, Materiality, New Materialism". W Experimental Film and Artists’ Moving Image, 25–69. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44309-2_2.

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Goldstein, Julia L. Freer, i Paul Foulkes-Arellano. "Material Innovations and Future Materials". W Materials and Sustainability, 114–30. London: Routledge, 2024. http://dx.doi.org/10.4324/9781003409267-10.

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Maugin, Gérard A. "Material forces in anelastic materials". W Material Inhomogeneities in Elasticity, 234–47. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-4481-8_10.

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Ghoddusi, Jamileh. "Material Modifications and Related Materials". W Mineral Trioxide Aggregate in Dentistry, 131–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-55157-4_7.

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Birch, Emily, Martyn Dade-Robertson, Ben Bridgens i Meng Zhang. "Material Ecology 3—Smart Materials". W The Routledge Companion to Ecological Design Thinking, 293–98. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003183181-27.

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ElGhazi, Yomna, Neveen Hamza i Martyn Dade-Robertson. "Material Ecology 3—Smart Materials". W The Routledge Companion to Ecological Design Thinking, 276–84. New York: Routledge, 2022. http://dx.doi.org/10.4324/9781003183181-25.

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Streszczenia konferencji na temat "Materials"

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Boehme, Bjoern, K. M. B. Jansen, Sven Rzepka i Klaus-Juergen Wolter. "Comprehensive material characterization of organic packaging materials". W 2009 10th International Conferene on Thermal, Mechanical and Multi-Physics simulation and Experiments in Microelectronics and Microsystems (EuroSimE). IEEE, 2009. http://dx.doi.org/10.1109/esime.2009.4938431.

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O'Neill, Feidhlim T., John T. Sheridan i Justin R. Lawrence. "Nonlocal material response of photopolymer holographic materials". W OPTO Ireland, redaktor Thomas J. Glynn. SPIE, 2003. http://dx.doi.org/10.1117/12.474748.

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Allen, Emily A., Lee D. Taylor i John P. Swensen. "Smart Material Composites for Discrete Stiffness Materials". W ASME 2018 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/smasis2018-8203.

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This paper presents an initial step towards a new class of soft robotics materials, where localized, geometric patterning of smart materials can exhibit discrete levels of stiffness through the combinations of smart materials used. This work is inspired by a variety of biological systems where actuation is accomplished by modulating the local stiffness in conjunction with muscle contractions. Whereas most biological systems use hydrostatic mechanisms to achieve stiffness variability, and many robotic systems have mimicked this mechanism, this work aims to use smart materials to achieve this stiffness variability. Here we present the compositing of the low melting point Field’s metal, shape memory alloy Nitinol, and a low melting point thermoplastic Polycaprolactone (PCL), composited in simple beam structure within silicone rubber. The comparison in bending stiffnesses at different temperatures, which reside between the activation temperatures of the composited smart materials demonstrates the ability to achieve discrete levels of stiffnesses within the soft robotic tissue.
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Kathuria, Yash P. "Laser material interaction technologies for materials processing". W OPTIKA '98: Fifth Congress on Modern Optics, redaktorzy Gyorgy Akos, Gabor Lupkovics i Andras Podmaniczky. SPIE, 1998. http://dx.doi.org/10.1117/12.320983.

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Oates, William, i Robert Sierakowski. "A Unified Material Model for Smart Materials". W 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
18th AIAA/ASME/AHS Adaptive Structures Conference
12th. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-2656.

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Simkhovich, Boris, i Guy Bartal. "Material Loss Omits Nonlinearity in Optically Thick Materials". W Frontiers in Optics. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/fio.2017.ftu4d.2.

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Tappan, Alexander, Gregory Long, Anita Renlund i Stanley Kravitz. "Microenergetic Materials - Microscale Energetic Material Processing and Testing". W 41st Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-242.

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Tanaka, Fumiaki, Hiroshi Sato, Naoki Yoshii i Hidefumi Matsui. "Materials Informatics for Process and Material Co-optimization". W 2018 International Symposium on Semiconductor Manufacturing (ISSM). IEEE, 2018. http://dx.doi.org/10.1109/issm.2018.8651132.

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Jiang, Chenfanfu, Craig Schroeder, Joseph Teran, Alexey Stomakhin i Andrew Selle. "The material point method for simulating continuum materials". W SIGGRAPH '16: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2897826.2927348.

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Ng, Tang-Tat. "Gravitational Effect on Material Response of Granular Materials". W 12th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments; and Fourth NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41096(366)12.

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Raporty organizacyjne na temat "Materials"

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Johra, Hicham. Thermophysical Properties of Building Materials: Lecture Notes. Department of the Built Environment, Aalborg University, grudzień 2019. http://dx.doi.org/10.54337/aau320198630.

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The aim of this lecture note is to introduce the motivations for knowing and measuring the thermophysical properties of materials, and especially construction materials. The main material characteristics regarding thermodynamics are detailed together with some of their respective measurement methods and their implications in building physics. Those thermophysical properties of building materials can be measured at the Building Material Characterization Laboratory of Aalborg University - Department of Civil Engineering.
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Gschwander, Stefan, Ana Lazaro, Monica Delgado, Christoph Rathgeber, Michael Brütting, Stephan Höhlein, Melissa Obermeyer i in. Summary of Work On development and characterization of improved Materials. IEA SHC Task 58, czerwiec 2021. http://dx.doi.org/10.18777/ieashc-task58-2021-0003.

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As the material development is done at different institution the objective of the work was to collect the materials which are under research and development to get an overview on the most relevant properties of these materials and application which are addressed.
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McKinnon, Mark, Craig Weinschenk i Daniel Madrzykowski. Materials and Products Database Technical Reference Guide. Fire Safety Research Institute, UL Research Institutes, kwiecień 2023. http://dx.doi.org/10.54206/102376/rnnp3809.

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For the past several years, the NIJ Technology Working Group’s Operational Requirements for Fire and Arson Investigation have included several scientific research needs that require improved knowledge of properties of materials that are common in the built environment, and therefore likely to be involved in a fire scene. The specific areas of research include: adequate materials data inputs for accurate computer models, understanding the effect of materials properties on the development and interpretation of fire patterns, and evaluation of incident heat flux profiles to walls and neighboring items in support of fire model validation. Each of the three aforementioned research topics rely, in part, on accurate knowledge of the physical conditions of a material prior to the fire, how the material will respond to the exposure of heat, and how it will perform once it has ignited. The project described herein has made advancements in terms of collecting experimental data and property information on a multitude of materials commonly encountered in the built environment for the purpose of making the data publicly available and easily accessible to fire investigators, fire protection engineers, and fire researchers.
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Gardea, Andrew D., Ryan Nishimoto, Nancy Y. C. Yang, Alfredo Martin Morales, Scott A. Whalen, Jeffrey M. Chames i W. Miles Clift. Material compatibility and thermal aging of thermoelectric materials. Office of Scientific and Technical Information (OSTI), wrzesień 2009. http://dx.doi.org/10.2172/986608.

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Johra, Hicham. Air permeameter for porous building materials: Aalborg University prototype 2023. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau545266824.

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The aim of this lecture note is to present the first prototype of an air permeameter for porous building material built at Aalborg University, Department of the Built Environment. This air permeameter setup is primarily intended for porous insulation materials but could be used for all types of materials fitting the sample frame. This lecture note also provides guidelines to operate this air permeameter and perform a state-of-the-art measurement of the effective air permeability.
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Thornell, Travis, Charles Weiss, Sarah Williams, Jennifer Jefcoat, Zackery McClelland, Todd Rushing i Robert Moser. Magnetorheological composite materials (MRCMs) for instant and adaptable structural control. Engineer Research and Development Center (U.S.), listopad 2020. http://dx.doi.org/10.21079/11681/38721.

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Magnetic responsive materials can be used in a variety of applications. For structural applications, the ability to create tunable moduli from relatively soft materials with applied electromagnetic stimuli can be advantageous for light-weight protection. This study investigated magnetorheological composite materials involving carbonyl iron particles (CIP) embedded into two different systems. The first material system was a model cementitious system of CIP and kaolinite clay dispersed in mineral oil. The magnetorheological behaviors were investigated by using parallel plates with an attached magnetic accessory to evaluate deformations up to 1 T. The yield stress of these slurries was measured by using rotational and oscillatory experiments and was found to be controllable based on CIP loading and magnetic field strength with yield stresses ranging from 10 to 104 Pa. The second material system utilized a polystyrene-butadiene rubber solvent-cast films with CIP embedded. The flexible matrix can stiffen and become rigid when an external field is applied. For CIP loadings of 8% and 17% vol %, the storage modulus response for each loading stiffened by 22% and 74%, respectively.
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Wyatt, Nicholas B., i Robert S. Chambers. Materials Analysis and Modeling of Underfill Materials. Office of Scientific and Technical Information (OSTI), sierpień 2015. http://dx.doi.org/10.2172/1213488.

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Warren, James A. Workshop Summary: Materials Genome Initiative: Materials Data. National Institute of Standards and Technology, styczeń 2015. http://dx.doi.org/10.6028/nist.ir.8038.

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Misra, Manoranjan. Materials Evaluation, Degradation, alternate Materials, and Modeling. Office of Scientific and Technical Information (OSTI), czerwiec 2010. http://dx.doi.org/10.2172/1037461.

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Coverdale, R. Tate, Edward J. Garboczi i Dale P. Bentz. Computational materials science of cement-based materials :. Gaithersburg, MD: National Bureau of Standards, 1993. http://dx.doi.org/10.6028/nist.tn.1405.

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