Flexure Testing
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Experimental study of reinforced masonry beams
Resumo Com objetivo de contribuir com o melhor entendimento do comportamento de vigas de alvenaria estrutural armada, foi realizado o estudo experimental de vigas de alvenaria armada com blocos de concreto. Essas foram projetadas para ruptura à flexão, sendo analisando o modo de fissuração, a flecha, o momento fletor último, a deformação por encurtame
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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2. Effect of gallic acid addition on some mechanical properties of self-adhesive resin cements
Abstract Self-adhesive resin cements (RCs) activate matrix metalloproteinase (MMP) and cathepsin-related collagen degradation, and gallic acid (GA) inhibits the activity of both MMPs and cysteine cathepsins. The purpose of this study was to evaluate the setting time, biaxial flexural strength, and Vickers hardness of self-adhesive RCs after the addition of t
Braz. oral res.. Publicado em: 09/09/2019
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3. Mechanical behavior of yttria-stabilized tetragonal zirconia polycrystal: Effects of different aging regimens
Abstract This study aimed to characterize and compare the effect of different aging regimens on surface characteristic (topography and roughness), structural stability (phase transformation) and mechanical performance (Weibull analysis) of a Y-TZP ceramic. Discs (15 × 1.2 mm; VITA In-Ceram YZ) were prepared according to ISO 6872-2015 for biaxial flexural st
Braz. oral res.. Publicado em: 07/12/2017
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4. Flexure resistance evaluation of mini implants prototypes developed for Herbst appliance anchorage Study in Minipig br1 / Avaliação da resistência à flexão de mini-implantes desenvolvidos para ancoragem esquelética do aparelho de Herbst - Estudo em Minipig br1
An undesirable tooth movement resulting from use of the Herbst appliance is the excessive proclination of the anterior mandibular teeth, which is commonly associated with gingival recession, marginal bone loss, and root resorption. Skeletal anchorage of the Herbst appliance could prevent these problems. The present study was designed to evaluate, in Minipigs
Publicado em: 2010
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5. Análise mecânica de retentores intra-radiculares / Mechanical analysis of endodontic post
The fiber-reinforcement composite (FRC) posts introduced the new concept of restorative system, in which the various components of the reconstruction: post, cement, filling material and dentin have now become a complex mechanically homogeneous. The knowledge of the structure, composition and physical properties of these fiber posts systems is important in or
Publicado em: 2010
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6. COMPORTAMENTO DE VIGAS DE CONCRETO ARMADO REFORÇADAS COM CFC SUJEITAS A CARGA DE IMPACTO / BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH CFC UNDER IMPACT LOADING
An experimental study on the behavior of reinforced concrete beams strengthened in flexure with CFC under impact load was carried out in this work. The main objective was to investigate the effects of the loading rate on the strength of the beams. The variables were the loading rate and the ratio of fiber to steel reinforcement cross sections. All beams were
Publicado em: 2008
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7. Análise numérico-experimental de estruturas de concreto com utilização da energia de fraturamento / Numerical-experimental analysis of concrete structures using the fracture energy
A evolução dos concretos utilizados nas últimas décadas deu origem ao Concreto de Alto Desempenho (CAD), que tem, entre suas características, alta resistência à compressão e baixa permeabilidade. Com o desenvolvimento dos produtos químicos utilizados na construção civil, em especial os superplastificantes e superfluidificantes, a utilização dess
Publicado em: 2007
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8. 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