Compressive Strenght
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Comparação entre métodos de fixação interna utilizadas no tratamento de fraturas do ângulo mandibular : estudo mecânico / Comparison of internal fixation methods in the management of mandibular angle fractures : mechanical study
Apesar dos diversos tipos de fixação interna existentes ainda não há um consenso quanto ao método de imobilização das fraturas do ângulo mandibular. Além disso, são poucos os estudos sobre a utilização de placas grade ultimamente lançadas no mercado. O presente estudo visou avaliar comparativamente a resistência entre três tipos de fixação i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
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2. Uso de fibra natural de sisal em blocos de concreto para alvenaria estrutural / Use of natural sisal fiber in concrete blocks for structural masonry
A utilização de fibras vegetais como reforço constitui um grande interesse na obtenção de novos materiais para a construção civil produto de seu baixo custo, alta disponibilidade e reduzido consumo de energia para sua produção. Este trabalho avalia a incorporação de fibras de sisal, de comprimento 20 e 40 mm, e fração volumétrica de 0,5 e 1%, e
Publicado em: 2011
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3. Efeito de tecnicas de envelhecimento acelerado e aplicação de selante sobre a deformação permanente de reembasadores resilientes permanentes / Effect of accelerated aging and surface sealing on permanent deformation of auto-polymerizing soft liners
O objetivo neste estudo foi comparar o efeito de dois métodos de envelhecimento acelerado (termociclagem e simulação do intemperismo natural) sobre a propriedade de deformação permanente de dois reembasadores resilientes permanentes usados como forradores de próteses removíveis, um à base de silicone (UP) e outro à base resina acrílica (DF), submet
Publicado em: 2010
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4. Effect of accelerated ageing on the permanet deformation and tensite bond strenght of auto-polymerizing soft dentures liners / Efeito de tempos de simulação do intemperismo natural na deformação permanente dos materiais reembassadores resilientes e na resitencia a tração da sua união com a resina acrilica
This study aimed to evaluate the effect of different times of accelerated ageing over the properties of permanent deformation and tensile bond strength of two soft liners used on prostheses relining. The soft liners studied were auto-polymerizing and acrylic resin and silicone based. The materials were processed according the manufacturers instructions. The
Publicado em: 2009
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5. Resistência à flexocompressão de instrumentos endodônticos indicados para canais atresiados e sua correlação com as características morfométricas / Buckling resistance of pathfinders and its geometry
The aim of this study was to evaluate the buckling resistance of endodontic intruments during the pathfinding of constricted root canals and its lenght influence. Buckling is the elastic deformation of an instrument due to the compressive strenght in its axial direction. The instruments surveyed and tested were: C+File #10, K-File #10 (Maillefer, Switerzland
Publicado em: 2009
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6. CONCRETE MICROESTRUTURE STUDY WITH ADDITION OF UNGROUND RESIDUAL RICE HUSK ASH WITHOUT BURN CONTROL / ESTUDO DA MICROESTRUTURA DO CONCRETO COM ADIÇÃO DE CINZA DE CASCA DE ARROZ RESIDUAL SEM BENEFICIAMENTO
The use of mineral adition in concrete is a widely studied theme for several researchers that looking for features like: save cement for reducing costs, durability improvement to increase mechanical strenght and use of industrial wastes for reducing environmental pollution. This study intend to analize the microstructure of concretes mixtures with ungrounded
Publicado em: 2008
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7. Numerical-experimental analysis of concrete structures using the fracture energy / Análise numérico-experimental de estruturas de concreto com utilização da energia de fraturamento
The evolution of the concrete mixes used during the last decades gave birth to the High Performance Concrete (HPC), which, among its main characteristics, presents high strength and low permeability. With the development of chemical products used in civil engineering constructions, mainly the superplasticizers, the use of this kind of concrete has become mor
Publicado em: 2007
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8. Estudo comparativo das propriedades mecânicas do concreto produzido com água tratada magneticamente
TThe related work, as a perspective of concrete improvement, seeks to analyze concrete behavior with magnetically treated water compared with the obtained results on conventionally produced concrete (common or tap water). The objective is to evaluate the effects of the magnetical treatment water in the workability of the concrete as well as on the mechanical
Publicado em: 2006
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9. Estudo de criterios de resistencia de materiais anisotropicos aplicados a madeira / Study of anisotropic material failure criteria, applied to wood
This research deals with the study of anisotropic material failure criteria, specifically TSAI- WU tensor failure criteria, and theoretical and experimental applications for wood. Thus it was carried out a theoretical revision of the principal themes related to this research: general failure criteria, Hankinson s formula, TSAI-WU tensor criterion, failure mo
Publicado em: 2006
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10. Argamassas com adição de fibras de polipropileno -estudo do comportamento reológico e mecânico. / Mortars with polypropylene fibres´addition - study of the rheological and mechanical behavior.
Many designers and constructors have been looking for alternative solutions trying to avoid types of anomalies in the mortar rendering. One of these solutions is the application of mortar with fibres addition. However, the knowledge concerning the composite behavior is very empirical, mainly in Brazil where there are no systematic researches about this sub
Publicado em: 2006
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11. Effects of type, size and content of aggregate on concrete strenght and fracture energy / Efeitos do tipo, tamanho e teor de agregado graudo na resistencia e energia de fratura do concreto
This thesis presents the results of the experimental study carried out for considering the effects of the type, size and amount of coarse aggregate on the behavior of nonnal and high strength concretes, and on relationship among the fracture energy and typical mechanical strength of concrete. The experimental concrete mixtures were made with basalt and grani
Publicado em: 2004
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12. Cartilagem articular de avestruz : um estudo estrutural e bioquimico
The articular cartilage is a hyaline connective tissue that contains cells and a great amount of extracellular matrix, which is composed of collagen, non-collagenous glycoproteins, and proteoglycans. This work aimed to describe the composition and organization of the extracellular matrix from articular cartilage of ostrich, which is a big bird with commercia
Publicado em: 2004