Physical Modeling Tests
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. FEM-DEM simulation of Uniaxial Compressive Strength (UCS) laboratory tests
Abstract Finite/discrete element methods (FDEM) are hybrid numerical models that use algorithms to analyze the transition from continuous to discontinuous. This type of formulation allows modeling physical laboratory tests with greater proximity to reality. This article proposes to simulate the average behavior of a uniaxial compression test campaign. The te
REM, Int. Eng. J.. Publicado em: 2020-12
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2. Glass Microbeads in Analog Models of Thrust Wedges
ABSTRACT Glass microbeads are frequently used in analog physical modeling to simulate weak detachment zones but have been neglected in models of thrust wedges. Microbeads differ from quartz sand in grain shape and in low angle of internal friction. In this study, we compared the structural characteristics of microbeads and sand wedges. To obtain a better pic
An. Acad. Bras. Ciênc.. Publicado em: 2017-03
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3. A digital approach for design and fabrication by rapid prototyping of orthosis for developmental dysplasia of the hip
Abstract Introduction Immobilization in a hip spica cast is required in surgical and nonsurgical treatments for children aged three months to four years diagnosed with developmental dysplasia of the hip. Skin complications are associated with the use of the spica cast in 30% of the cases. This research explores the use of photogrammetry and rapid prototypin
Res. Biomed. Eng.. Publicado em: 18/03/2016
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4. Consolidação de um rejeito de mineração de areia e modelação do enchimento de um reservatório para sua disposição / Sand-mining waste disposal consolidation and a waste reservoir filling process modeling for its storage
Mining waste is frequently disposed of in the form of mud. The storage capacity of a collection reservoir of mining waste depends on its dimensions and on its operational processes, which are based on the physical characteristics of the mud and its compressibility and hydraulic conductivity. This research focuses on the study of the consolidation characteris
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/04/2011
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5. Seleção de materiais e design em produtos esportivos : estudo do perfil interno de caneleiras personalizadas
Football is the sport worldwide with the largest number of practitioners in the world and its standards are produced by the IFAB (Council of International Football Association) and regulated by FIFA (Federation Internationale de Football Association), being a sport that generates millions of dollars in sponsorships and advertising. The athletes in the anthro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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6. Programa de habilidades sociais profissionais para pessoas com deficiência física desempregadas : necessidades, processo e efeitos / A professional social skills program for unemployed people with physical disability: needs, process and effects
Aiming to promote better employability conditions among people with physical disability, the literature review indicates the improvement of the social skills repertoire. Social skills programs can contribute to an individuals entry, adaptation and career development in the job market. The purpose of the current research was to assess the need, the process an
Publicado em: 2010
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7. PHYSICAL SIMULATION OF WELLBORE MECHANICAL BEHAVIOR / SIMULAÇÃO FÍSICA DO COMPORTAMENTO MECÂNICO DE POÇOS DE PETRÓLEO
A major problem during hydrocarbon production from poorly consolidated sandstone in the influx of sand, or sand production. This problem is complex and can occur as a result of a large variety of reasons, like magnitude of the in situ stresses, formation strength, and wellbore-development operations. If the potential for sand production could be predicted, t
Publicado em: 2009
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8. 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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9. Estudo comparativo da aplicaÃÃo de vinhaÃa tratada e in natura em solos sob cultivo de cana-de-aÃÃcar
Brazil is the world leader in sugarcane plantation. Its economical exploration generates residues, standing out the vinasse. Due to the problems of ecological and social order caused by the vinasse, the most plausible solution for its disposition is the application to the soil as fertilizer. However, that application requests studies to guide the management
Publicado em: 2008
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10. Correlation study of spot welded specimensbehavior using element method. / Estudo de correlação do comportamento de pontos de solda em corpos de prova pelo método dos elementos finitos.
Resistance spot welding is the most common jointing process of parts used in automotive industry. Several methods to represent spot welds are available, and the purpose of this work is to compare two different methods of spot weld modeling through a correlation study, taking into consideration the maximum force withstood by the welded joint, between virtual
Publicado em: 2007
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11. Method for data protection against communication failures in smart sensors networks. / Método para proteção dos dados contra falhas de comunicação em redes de sensores sem fios.
Este trabalho apresenta o desenvolvimento de um método para garantir a proteção dos dados contra falhas de comunicação, em redes de sensores inteligentes sem fios. A rede sem fios foi empregada nos ensaios de modelos físicos reduzidos em centrífuga para estudar o comportamento das âncoras "tartaruga", utilizadas nas linhas de ancoragem de sistemas oc
Publicado em: 2007
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12. Econometric analysis of the factor total productivity in Amazonia Legal, 1990-2004 / Análise econométrica da produtividade total dos fatores na Amazônia Legal, 1990-2004
The economic performance of Amazonia Legal and its states is evaluated based on total-factor productivity (TFP) measures obtained by the use of the exogenous growth model formulated by Solow (1956) and by the expanded human capital model proposed by Mankiw et al. (1992). The economic variables taken as proxy of the physical (synthetic quantitative index), hu
Publicado em: 2007