Youngs Modulus
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Medición del módulo de Young en metales mediante la técnica de excitación por impulso
ABSTRACT The impulse excitation, as non-destructive technique, allows to determine the elastic constants of materials by means of measurement of natural frequency of vibration of bars in different modes, excited by an impact in a point. In this work, the Young’s modulus of copper, aluminum and copper-based alloys samples was determined. The measurements we
Matéria (Rio J.). Publicado em: 19/07/2018
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2. Photodegradation of UHMWPE Filled with Iron Ore Fine
Ultra high molecular weight polyethylene (UHMWPE) is one of the most important engineering materials owing to outstanding properties like impact strength and abrasion resistance. However, the relatively low Young´s modulus restricts some application and the use of fillers may be a suitable way to overcome this. The fillers can influence the photo stabilizat
Mat. Res.. Publicado em: 23/01/2017
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3. Glass Forming Ability and Mechanical Properties of Zr57.52Co21.24Al9.24Ag12 bulk metallic glass
The effect of the partial substitution of Al for Ag in the glass forming ability (GFA) of the Zr57.52Co21.24Al21.24-xAgx (x = 8, 10, 12, and 14 at. %) family alloy are reported and discussed. Cylindrical and conical ingots were obtained using the suction casting technique. It was found that the Zr57.52Co21.24Al9.24Ag12 alloy showed a glassy structure, with a
Mat. Res.. Publicado em: 10/10/2016
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4. Composition, Elastic Property and Packing Efficiency Predictions for Bulk Metallic Glasses in Binary, Ternary and Quaternary Systems
The results of database based on the efficiency packed model for metallic glasses. The database contains the atomic radii information as well as elastic properties of the most commonly used alloying elements, permitting composition, packing efficiency and elastic property predictions to be made for binary, ternary and quaternary bulk metallic glasses. Twenty
Mat. Res.. Publicado em: 08/03/2016
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5. Potencialidades computacionales del Método de los Elementos Finitos para la modelación y simulación de materiales compuestos: revisión
This work presents a review of computational models that use the Finite Elements Method (FEM) for the study of composite materials mechanical behavior, focusing the analysis in materials reinforced by particles or fibers. Bibliographic analysis shows that using FEM it is possible to successfully estimate the effect on the composites mechanical properties, of
Matéria (Rio J.). Publicado em: 2015-06
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6. Influence of intercalation methods in properties of Clay and carbon nanotube and high density polyethylene nanocomposites
In this work, nanocomposites with simultaneous dispersion of carbon nanotubes and clays in a high density polyethylene (HDPE) matrix were prepared. Two different processes of preparation were employed: solution or melt intercalation. Two different montmorillonite clays were used separately: a natural (MMT-Na) or an organoclay (MMT-30B) and it was used multiw
Mat. Res.. Publicado em: 2014-12
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7. PRODUCTION AND CHARACTERIZATION OF NYLON 11 NANOCOMPOSITES REINFORCED WITH TIO2 BASED NANOMATERIALS / PRODUÇÃO E CARACTERIZAÇÃO DE NANOCOMPÓSITOS DE NYLON 11 REFORÇADOS POR NANOCARGAS A BASE DE TIO2
The fast technological developments comes with the need to obtain more materials combined with better performance. Polimeric materials, commonly used in our daily because of its characteristics of good strength, good chemical stability, easy processability and low cost, are still restricted for some applications owing to their low mechanical and thermal prop
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/04/2012
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8. Young's modulus of Al/SiC P/MgAl2O4 composites with different particle size distribution of reinforcements
The effect of particle size distribution of SiC particulate reinforcements coated with colloidal SiO2 on Young´s modulus of Al/SiCp/MgAl2O4 composites fabricated by reactive infiltration was investigated. Composites were prepared from porous preforms of silica-coated α- SiC powders of 10, 54, 86, and 146 μm, 0.6 volume fraction of reinforcements and parti
Matéria (Rio de Janeiro). Publicado em: 2010
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9. MODELAGEM DO MÓDULO DE YOUNG EM NANOCOMPÓSITOS ATRAVÉS DE INTELIGÊNCIA COMPUTACIONAL / MODELING YOUNGS MODULUS OF NANOCOMPOSITES THROUGH COMPUTATIONAL INTELLIGENCE
Composite materials became very popular due to its improvements on certain properties achieved from the mixture of two different components. Recently, the use of nanofillers in the manufacture of composites has been widely studied due to the improvement of properties at low concentrations of nanofillers, enabling the creation of lightweight materials. Some o
Publicado em: 2009
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10. Avaliação da influência do choque térmico na aderência dos revestimentos de argamassa. / Evaluation of thermal shocks influence on bonding of external mortar renderings.
The present study focus on thermal variation effects on mortar rendering bonding degradation. Among the variety of factors that condition the bonding of mortar renderings, a critic scenario can be defined by the existence of interface macro-flaws between mortar rendering and substrate, and by the thermal variation intensity in the extreme situation of therma
Publicado em: 2009
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11. Thermo-mechanical properties of a-SiC:H and SiOxNy thin films and development of MEMS. / Propriedades termo-mecânicas de filmes finos de a-SiC:H e SiOxNy e desenvolvimento de MEMS.
O presente trabalho, realizado junto ao Grupo de Novos Materiais e Dispositivos (GNMD), no Laboratório de Microeletrônica do Departamento de Sistemas Eletrônicos da Escola Politécnica da USP, visou determinar algumas das propriedades termo-mecânicas de materiais depositados pela técnica de plasma enhanced chemical vapor deposition (PECVD) que são impo
Publicado em: 2008
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12. Carbonation action in reinforced concrete beams under stress regime carried out on full and small scales / Ação da carbonatação em vigas de concreto armado em serviço, construídas em escala natural e reduzida
This work reports on the behavior of carbonation in reinforced concrete beams under stress regime on full and small scales having the lowest possible frame. The beams were made with and without adding silica from rice husk and silica fume (Fe-Si). For each beam on a full scale (coarse aggregate with D máx. = 19 mm) another beam on a small scale was made wit
Publicado em: 2007