Module Of Elasticity
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Effect of resin content and pressing temperature on banana pseudo-stem particle boards properties using full factorial design
Abstract: The volume of global gross banana exports reached a record of 117.9 million tonnes in 2015 (FAO 2017), which agro-industrial wastes derived as the pseudo-stem, rachis and leaves do not have an industrial application instead they are discarded. This research study applies full factorial design and response surface methodology to determine the effect
An. Acad. Bras. Ciênc.. Publicado em: 02/12/2019
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2. Effects of Frequency, Temperature and Test Duration in the Viscoelasticity of Brazilian Hardwoods Used in Handmade Musical Instruments
This study aims to make a comprehensive analysis on the viscoelastic behavior of typical tropical hardwoods and its influences in making musical instruments. For that a Dynamic-Mechanical Analysis was done and the mechanical parameters dependence on test control parameters like temperature, frequency and test duration time were measured. For Dalbergia Nigra
Mat. Res.. Publicado em: 24/10/2019
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3. Field compaction control by way of correlation between elasticity module and layer rigidity with moisture content
Abstract The present research had as its basic objective to contribute with the improvement in the quality control evaluation of the compacting process in road works. The real contribution of the survey is to establish an innovative way of controlling the compaction process in the field, with employment of the Humidity versus Rigidity and the Humidity versus
REM, Int. Eng. J.. Publicado em: 2019-03
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4. In vitro degradation of Poly-L-co-D, L-lactic acid membranes
Poly-L-co-D.L-lactic (PLDLA) is a bioresorbable polymer whose properties have been studied for degradation sensitivity and its application in medicine. In this study, the potential of PLDLA membranes for temporary implantation was evaluated. PLDLA membranes were prepared with the solvent evaporation technique and characterized by differential scanning calori
Mat. Res.. Publicado em: 13/11/2012
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5. Influência do tipo de medição na determinação do módulo estático de elasticidade do concreto / Influence of Type of Measurement in Determining the Static Module of Elasticity of Concrete
The knowledge of the compressive strength and static modulus of elasticity is fundamental to the study of deformations of concrete, since deformations can cause cracks that compromise both the structural behavior of the element and serve as an entry to deleterious agents. For purposes of correlating values of compressive strength and static modulus of elasti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2011
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6. Influência do tipo de medição na determinação do módulo estático de elasticidade do concreto / Influence of Type of Measurement in Determining the Static Module of Elasticity of Concrete
O conhecimento da resistência à compressão e do módulo estático de elasticidade é fundamental para o estudo das deformações do concreto, uma vez que as deformações podem gerar fissuras capazes de comprometer tanto o comportamento estrutural do elemento de concreto, como servir de caminho de entrada aos agentes deletérios. Não só fissuras, mas ta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2011
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7. Modelo para determinação da perda de carga contínua em tubos elásticos / Model for determining the continuous head losses in elastic pipe
Total head losses are accounted in the irrigation hydraulic projects, that would be the continuous losses and the local head losses, aiming to maximize the uniformity of water distribution, characterizing an adequate pump set to the irrigation system e thus, minimizing the project implantation and annual costs. With informatics support, complex calculation p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/08/2011
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8. Estudo in vitro da influência da dureza e módulo de elasticidade de sistemas adesivos na resistência de união à dentina humana / In vitro study of influence of hardness and elasticity module of adhesive sistems in bond strenght to human dentin
O objetivo deste trabalho foi avaliar a dureza e o módulo de elasticidade da região de adesão quando utilizados diferentes sistemas adesivos e uma resina composta imediatamente após o procedimento adesivo e após 6 meses de armazenamento, correlacionando esses valores com a resistência adesiva à dentina humana. Para isso foram medidos a dureza e o mód
Publicado em: 2011
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9. Propriedades de madeiras termorretificadas / Properties of thermalrectified wood
Heat treatment applied to the wood leads to the degradation and/or rearrangement of its principal chemical constituents, especially cellulose, hemicelluloses, and lignin, improving some properties such as dimensional stability, resistance to attack by wood decay organisms, and reducing the hygroscopicity. This occurs mainly by the OH groups degradation prese
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/05/2010
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10. Tomografia de impulso para estimativa da densidade da madeira / Impulse tomography for wood density estimate
There are several techniques which use the passage of waves through wood to obtain information. Among them the tomography of trees is emphasized, reconstructing cross sections of trunk and branches. The impulse tomography is based on the timing of mechanical sound wave travelling between sensors attached to a cross section of the tree, to compute wave speed
Publicado em: 2010
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11. EFEITOS NAS PROPRIEDADES MECÂNICAS, ELÁSTICAS E DE DEFORMAÇÃO EM CONCRETOS COM ALTOS TEORES DE ESCÓRIA E CINZA VOLANTE. / EFFECTS ON MECHANICAL, ELASTIC AND DEFORMATION PROPERTIES ON CONCRETE WITH HIGH LEVELS OF SLAG AND FLY ASH.
The use of byproducts and industrial waste as pozzolanic, is an alternative to achieve the sustainability, economy and durability in concrete structures. This survey has as its purpose to analyze the effect on mechanical, elastic and deformation properties on concrete with a high level of granulated slag from blast furnace and fly ash in place of Portland bu
Publicado em: 2009
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12. Chemical and physical characterization of cassava flour and soy protein biofilms. / Caracterização físico-química de filmes biodegradáveis de farinha de mandioca e proteína de soja.
Environmental concerns associated with plastics disposal have promoted research into alternatives to replace the common plastic. Following this tendency, this research used cassava flour mixed with different rates of soybean protein and glycerol to produce biodegradable films by thermoplastic extrusion. Variables analyzed were: soybean protein, moisture and
Publicado em: 2009