Deformability Parameters
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Study of the influence of compressive strength concrete on columns during the design of a multi-floor building
Resumo Este trabalho tem como objetivo analisar a influência da resistência à compressão do concreto em pilares no dimensionamento de um edifício de múltiplos pavimentos, utilizando a ferramenta computacional CAD/TQS. As resistências dos pilares foram variadas em uma razão de 5 MPa, de 35 MPa até 90 MPa, sendo que os demais elementos estruturais per
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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2. Using rodogram function to characterize hurst coefficient in rock profiles
Abstract Roughness is a fundamental feature to define rock deformability and resistance. A detailed characterization of discontinuity surface geometry is essential for understanding some of the rock’s mechanical behaviors. Fractal geometry has been used by several authors to correlate parameters such as the Hurst coefficient for JRC (Joint Roughness coeffi
REM, Int. Eng. J.. Publicado em: 2018-07
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3. Intra and postoperative evaluations of microcirculation and micro-rheological parameters in a rat model of musculocutaneous flap ischemia-reperfusion
PURPOSE:To examine how the ischemia-reperfusion injury of latissimus dorsi-cutaneous maximus (LDCM) musculocutaneous flap affects the microcirculatory (flap's skin surface) and hemorheological parameters, and whether an intraoperative deterioration would predictively suggest flap failure in the postoperative period.METHODS: Ten healthy male rats were subject
Acta Cir. Bras.. Publicado em: 2015-08
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4. The effects of weathering exposure on the physical, mechanical, and thermal properties of high-density polyethylene and poly (vinyl chloride)
This paper presents results describing the physical, mechanical, and thermal properties (melt flow index - MFI and oxidative induction time - OIT) of high density polyethylene and poly (vinyl chloride) after weathering exposure (6, 12, 18, and 30 months). The materials exposed were geomembranes of two thicknesses: 1.0 and 2.0 mm (PVC) and 0.8 and 2.5 mm (HDP
Mat. Res.. Publicado em: 20/08/2013
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5. Estudo sobre o pick-up de nitrogênio após a etapa de refino primário do aço
With the growing need of high quality steel there is a great demand for the development and production of steels with ever stringent chemical composition restrictions. For instance the presence of carbon and nitrogen in Interstitial Free steels for automobile industry. These restrictions are defined by the final application to which the product is destined.
Publicado em: 2010
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6. Resistência e deformabilidade de blocos vazados de concreto, prismas e paredes e suas correlações com as propriedades mecânicas dos materiais constituintes / Strength and deformability of hollow concrete blocks, prisms and walls and their correlation to mechanical properties of constituent materials
This work aims to identify and correlate the mechanical properties of concrete and bedding mortar to the structural behavior of hollow concrete blocks, prisms and walls, by mean of physical and numerical modeling. A detailed experimental investigation was carried out by assuming as a premise the use of plastic consistency concrete to produce hollow blocks an
Publicado em: 2008
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7. Uso do DMT na avaliação de maciços compactados
The quality of compacted fill, be they of road works or dams, is essential to the smooth functioning of work as a whole. Currently, the quality control of this is done by testing that determine the diversion of moistures soil newly compacted, in relation to optimum moisture content, and the degree of compaction achieved. Based on these results characteristic
Publicado em: 2008
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8. Inverse analysis in the determination of soil deformability parameters / Análise inversa para determinação de parâmetros de deformabilidade de solos
A previsão do comportamento mecânico de maciços de solos requer a utilização de modelos constitutivos que representem mais adequadamente sua relação tensão-deformação. Alguns modelos podem incluir parâmetros de difícil obtenção em laboratório e sua determinação, ao envolver julgamentos de engenharia, é mais bem consumada por usuários exper
Publicado em: 2008
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9. DEVELOPMENT AND IMPLEMENTATION OF METHODOLOGIES FOR THE DETERMINATION OF THE DEFORMABILITY AND STRESS IN GNAISSIC ROCK MASSES / DESENVOLVIMENTO E IMPLEMENTAÇÃO DE METODOLOGIAS PARA A DETERMINAÇÃO DA DEFORMABILIDADE E TENSÕES EM MACIÇOS GNÁISSICOS
This thesis presents the results from an experimental program with intention to determine the properties of deformabilty and in situ stress in gnaissic rocks. The determination of in situ stress is fundamental for any work in rock mechanics, it is use like field conditions at the in engineering problems, and in bigger scales it gives some indications of the
Publicado em: 2007
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10. Infiltration condition and mouldability diagram in resin injection moulding
This paper deals with the modelling of injection moulding processes taking into account the deformability of the preform and the polymerisation of the resin. The coupled flow-deformation problem in the infiltrated and dry region is formulated with the corresponding boundary conditions and with the proper evolution equations determining the motion of the boun
Computational & Applied Mathematics. Publicado em: 2007
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11. Development of a hypoplastic model that represents overconsolidation effects. / Desenvolvimento de um modelo hipoplástico que represente efeitos do sobreadensamento.
Modifications in a hypoplastic model are proposed intending to represent the mechanical behavior of overconsolidated clays. The overconsolidation ratio, the cohesion intercept and indices that represent overconsolidation characteristics are introduced in the model, resulting in parameters with a clear physical meaning and of easy to determine. The constituti
Publicado em: 2006
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12. BEHAVIOR OF GEOGRIDS IN REINFORCED SOIL WALL AND PULLOUT TESTS / COMPORTAMENTO DE GEOGRELHAS EM MURO DE SOLO REFORÇADO E EM ENSAIOS DE ARRANCAMENTO
The behavior of a 5m high and 1700m long reinforced soil wall was studied in this work. The wall constitutes the upper part of a dike constructed in Poços de Caldas-MG, Brazil, by Alcoa Aluminum S.A. to contain Bauxite residues. The wall was constructed using geogrids and a residual silty-clay. Two wall sections were instrumented. Horizontal and vertical di
Publicado em: 2006