Dynamic Modulus Of Elasticity
Mostrando 13-24 de 29 artigos, teses e dissertações.
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13. Preparation and characterization of Ti-15Mo alloy used as biomaterial
With the increase in life expectancy, biomaterials have become an increasingly important focus of research because they are used to replace parts and functions of the human body, thus contributing to improved quality of life. In the development of new biomaterials, the Ti-15Mo alloy is particularly significant. In this study, the Ti-15Mo alloy was produced u
Materials Research. Publicado em: 18/03/2011
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14. Síntese, caracterização e polimerização de bis(metacrilamida)s
The aim of this study was the synthesis, characterization and investigation of kinetic behavior of photo- and thermal polymerization of 4,4-diphenylmethane-bis(methacrylamide) (BisFenil), N,N¿,hexamethylene-bis(methacrylamide) (BisHexa), N,N¿-decamethylene-bis(methacrylamide) (BisDeca) and N,N¿-dodecamethylene-bis(methacrylamide) (BisDodeca). Methacrylate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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15. Estudo de fibra alternativa de escória de alto-forno como reforço em matrizes cimentícias / Study of alternative blast furnace slag fiber as reinforcement in cementitious matrices
Waste generated in various industries have been utilized in the production of materials seeking to reduce the environmental impact. In the field of fibers, alternative materials have been produced in greater quantity and gaining prominence in the manufacture of composites more environmentally appropriate. Among these products is of blast furnace slag fiber,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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16. Propriedades tecnológicas de vigas de madeira laminada colada produzidas com louro-vermelho: (sextonia rubra)
The objective of this study was characterize the technological behavior of glulam beams (MLC) using the wood from Louro Vermelho (Sextonia rubra Lauraceae), through the evaluation of the adhesion with adhesive resorcinol-formaldehyde and evaluate theoretically and experimental the modulus of elasticity (EM), the modulus of rupture (fM), the bending moment (M
Publicado em: 2009
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17. Avaliação da retração autógena em concretos de alto desempenho com diferentes adições
High performance concrete is commonly useful by its performance, strength, durability, workability and others. Autogenous shrinkage can be considering one of the reasons of cracks on high performance concretes at early ages. The concrete shrinkage can be influenced by different reasons: piece measurements, water content of mashing, dosage of cement, inert na
Publicado em: 2008
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18. Estudo da fluência em vigas de concreto reforçado com fibras de aço, com aplicação de conceitos da mecânica da fratura / Creep analysis of steel fiber reinforced concrete based on beam tests and fracture mechanics concepts
Despite of the well known advantages of steel fiber addition to concrete (SFRC), especially the toughness improvement, only a few number of studies has been developed about creep on these composites. The main purpose of this research is to investigate the feasibility and inherent difficulties related to a particular creep evaluation method. This method is ba
Publicado em: 2008
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19. Structural, morphological and functional analysis of superficial digital flexor chicken tendons / Analise estrutural, morfologica e funcional do tendão flexor digital superficial de frangos
The structure-function relationship has been shown in several works regarding collagenous tissues, such as tendon. It is known that different loads can alter composition, molecular organization and morphological characteristics. Tendons present viscoelastic behavior and this characteristic is studied by biomechanical analyses and is directly related to tissu
Publicado em: 2007
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20. Mechanical performance of carbon-epoxy laminates. Part I: quasi-static and impact bending properties
In Part I of this study, quasi-static and impact bending properties of four aeronautical grade carbon-epoxy laminates have been determined and compared. Materials tested were unidirectional cross-ply (tape) and bidirectional woven textile (fabric) carbon fiber lay-up architectures, impregnated with standard and rubber-toughened resins, respectively, giving r
Materials Research. Publicado em: 2006-06
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21. Wave propagation techniques in estimation of mechanical properties of OSB panels / Técnicas de propagação de ondas na estimativa de propriedades mecânicas de painéis OSB
Wood based materials production has grown in the national market, as it is the current international trend. Such products have been an interesting alternative to the sawn wood. Among them, OSB (Oriented Strand Board) has been of an outstanding importance. Its potential of production in the national context is expressive when supplying civil construction, fur
Publicado em: 2006
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22. Influence of the specimen size on destructive methods of parallel compression grain and on the test non-destructive using ultra sonic waves / Influencia da dimensão do corpo-de-prova no ensaio destrutuvo de compressão paralela as fibras e no ensaio não-destrutivo utilizando ultra-som
é praticamente toda exportada em sua forma in natura sem que a ela seja agregado valor de beneficiamento. Um dos problemas enfrentados pela indústria moveleira é o fato da madeira não ser submetida à classificação, dificultando a elaboração de projetos e a certificação da qualidade do móvel confeccionado a partir deste material. Nesse contexto as
Publicado em: 2006
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23. Análise dinâmica experimental da rigidez de elementos de concreto submetidos à danificação progressiva até a ruptura / Dynamic experimental analysis of concrete elements stiffness subjected to progressive damage
Structural integrity assessment may be performed by experimental modal analysis. The dynamic tests provide natural frequencies values whose changes may be used to identify existent damage and to estimate the equivalent stiffness of cracked elements. Nowadays more researches about dynamic effects on civil structures are becoming available. Among all aspects r
Publicado em: 2005
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24. Durabilidade de argamassas modificadas por polimeros e reforçadas com fibras vegetais / Durability of fiber-cement polimer modify
Several researches on vegetal-fiber-cement composites have been developed aiming to solve problems related to the banishment of asbestos and environmental damages due to deposition or burnirng of agro-industry residues. The durability of the cellulose-cement composites is a key factor to introduce such material in the market. Several researches have been dev
Publicado em: 2004