Mechanic Resistance
Mostrando 1-12 de 22 artigos, teses e dissertações.
-
1. Assessment of Chemical and Mechanical Properties of Polymers Aiming to Replace the Stainless Steel in Distillation Column
Small scale ethanol production process faces a number of challenges that negatively impact productivity and economic costs. The present work aims at finding alternative materials with lower cost and suitable resistance to replace the stainless steel commonly used in distillation columns in small scale businesses. For that we analyzed the chemical and mechani
Mat. Res.. Publicado em: 12/04/2018
-
2. Evaluation of the Mechanic and Electrochemical Properties of an Epoxy Coating with Addition of Different Polyhedral Oligomeric Silsesquioxanes (POSS) Applied on Substrate of Low Alloy Steel
The epoxy resin is one of the matrices most employed in obtaining composites and coatings. Its properties have been modified using materials such as clays and polyhedral oligomeric silsesquioxanes - POSS. The use of POSS in the preparation of thermosetting nanocomposites has been studied in obtaining hybrid materials with higher mechanic and surface properti
Mat. Res.. Publicado em: 31/07/2017
-
3. Reinforced Transparencies for Aerospace Application – Case Description
ABSTRACT This paper describes the polycarbonate acrylic laminated development that can be applied in aeronautics and aerospace transparencies. The case studied is a laminated double-curved transparency (bubble form) used in an observation side window of a military aircraft. Side windows need strength and specific characteristics, similar to windshields, allo
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
-
4. Study of mechanical properties and durability of magnesium phosphate cement matrix containing grinding dust
The acid-base cements are materials developed by means of reactions between an acid component and another basic one. This type cement belongs to the family of the so called "chemically bonded phosphate ceramics" (CBPCs), new types of inorganic materials that have special physico-chemical properties and that, in contrast to most advanced ceramics, are made by
Mat. Res.. Publicado em: 02/07/2013
-
5. Avaliação estatística do erro de modelos de resistência para elementos lineares de concreto armado da ABNT NBR 6118:2007 / Statistical evaluation of resistance modelling error for linear elements of concrete structures of ABNT NBR 6118:2007
In a design of structures, it should be considered the intrinsic uncertainties to the present variables in the structure and in the structural concept, such as intensity and action distribution, mechanic properties of the material, geometric parameters of the structure and structural analysis and calculus models. Thus, the structural safety can only be measu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
-
6. Vidros de germanato com nanopartículas metálicas e semicondutoras dopados com terras-raras para aplicações em fotônica. / Germanate glasses containing metalic an semiconductor nanoparticles dopes with rare-earth ions for photonic aplicattions.
This work presents a spectroscopic study about Eu3+, Nd3+ and Er3+ rare-earth doped germanate glasses containing metallic and semiconductor nanoparticles (NPs) aiming the development of new materials for photonic applications. These glasses have a large transmission window (400-4500 nm), high refractive index (~ 1.9), low phonon energy (700 cm-1), high mecha
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/09/2010
-
7. Evaluation of the mechanic behavior of fiber reinforcement in a fine sandy lateritic soil applies in pavement layers / Avaliação do comportamento mecânico de um solo arenoso fino laterítico reforçado com fibras para uso em pavimentação
The propose of this study is to evaluate the effect of the randomly distributed fiber reinforcement in the compression and tension resistances, deformability and resilient modulus of a fine sandy lateritic soil (FSLS) for base layer of pavements. Glass fibers and polypropylene fibers were studied. The first was added in contents of 0,5%, 1,0% and 1,5% with l
Publicado em: 2009
-
8. ESTUDO TEÓRICO EXPERIMENTAL DAS PROPRIEDADES DINÂMICAS DO BAMBU / THEORETICAL AND EXPERIMENTAL ANALYSIS OF DYNAMIC PROPERTIES OF BAMBOO
The studies carried on during the last three decades with respect to bamboo have been directed to the physical, mechanic and microstructural characterization of different species, under static load. The experience has shown that the houses and buildings constructed using bamboo as structural element have had good resistance to earthquakes. This work is one o
Publicado em: 2009
-
9. O estresse físico modula a mecânica de tecido pulmonar periférico, a expressão de citocinas e o estresse oxidativo em cobaias com inflamação alérgica crônica / Physical stress modulates lung tissue mechanics, cytokines and oxidative stress activation in guinea pigs with chronic allergic inflammation
There are evidences showing that stress can worsen asthma symptoms, but the exact mechanisms that link them are not clarified, especially in the distal lung parenchyma. Recently, the importance of the lung parenchyma has been emphasized in the modulations of the functional alterations, inflammatory and remodeling that characterizes asthma. These alterations
Publicado em: 2009
-
10. Desempenho mecÃnico do solo condicionado com lodo de esgoto calcinado / Mechanical performance of the soil conditioned with burned sewage sludge
Amongst the global problems that most rouse studies and solutions before the environment crisis arise the ones concerning the destination of waste and the sewage system. The sustainable development requires the creation of solutions aiming the reduction or the elimination of the impacts on the environment. The waste may become an Engineering solution. The ai
Publicado em: 2008
-
11. Mechanic resistance and marginal misfit of pure Ti submitted to two welding methods TIG and Laser / Resistência mecânica e desajuste marginal do titânio comercialmente puro submetido a dois métodos de soldagem: TIG e Laser
O objetivo deste trabalho foi avaliar o efeito da soldagem TIG ("tungsten inert gas") e compará-la com soldagem a laser, em hastes cilíndricas e supra-estruturas implantosuportadas, confeccionadas em titânio comercialmente puro (Ti cp) por meio dos ensaios de resistência mecânica (tração e flexão) e desajuste marginal, respectivamente. Foram confecci
Publicado em: 2008
-
12. Influência do teor de calcário no comportamento físico, mecânico e microestrutural de cerâmicas estruturais
There are ores of clay in Piauí State that are used for red structural ceramics, which are naturally contaminated with calcareous vein. This is one thing that impedes its exploration in an adequate way, especially for tile production. The present work aims at verifying the influence of the calcareous contents in the technological structural ceramics area, s
Publicado em: 2008