Mechanic Behavior
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Thermo-mechanical analysis of mass concrete elements made of rubberized concrete
Resumo Neste estudo, foram avaliadas amostras de concreto massa com borracha (concreto emborrachado) para determinar se a adição de partículas de borracha aumentaria a resistência à fissuração devido a variações volumétricas de origem térmica, em comparação com um concreto de referência, sem borracha. Amostras dos concretos estudados foram inic
Rev. IBRACON Estrut. Mater.. Publicado em: 18/07/2019
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2. 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
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3. The Wire Drawing Mechanics of Near-Equiatomic NiTi SMA
The wire drawing mechanic of Ti-49.82Ni (at. %) Shape Memory Alloy (SMA) was investigated through the true stress-strain curves and drawing stresses. The tensile tested solution treated wire presented a four steps elongation at temperatures below the austenite finish temperature (AF), and a conventional one-step behavior above the martensite deformation temp
Mat. Res.. Publicado em: 26/03/2018
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4. 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
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5. Structural and Morphological Characteristics of Polyaniline Synthesized in Pilot Scale
ABSTRACT: Polyanilines have many applications in Aerospace, especially in their doped form. Studies on their synthesis in a pilot scale can contribute to obtain products with desirable characteristics for such applications. The present study reports the chemical oxidative synthesis of polyaniline in pilot scale and different reaction times in order to determ
J. Aerosp. Technol. Manag.. Publicado em: 2017-03
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6. Influência da geometria da nanocarga na estruturação, orientação e propriedades de filmes tubulares de nanocompósitos de PA6 / Influence of the nanoparticles shape on the structure, orientation and properties of pa6 nanocomposites blown films
The structure and morphology of polymers and consequently their properties are dependent on the processing conditions. During the blown film process, high shear and elongational flows can induce a preferred orientation of the polymer chains; controlling the process conditions, it is possible to obtain films with anisotropic properties. Polymeric nanocomposit
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2012
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7. Verificação do sincronismo do acoplamento elétrico entre circuitos simulando o comportamento de um sistema mecânico partícula em caixa / Timing verification of the coupling between electric circuits simulating the behavior of a particle in a box system mechanic
A dinâmica de sistemas caóticos é uma área de pesquisa relativamente recente, diretamente relacionada com os campos da engenharia, física e matemática aplicada. A sincronização entre sistemas dinâmicos tem sido um tópico de pesquisa muito freqüente, abrangendo campos desde a mecânica de corpos celestiais até a física dos lasers. Entretanto, a m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/02/2012
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8. Modelagem da dinâmica vertical de coxins elastoméricos de motor através de método de redes neurais / Modeling vertical dynamic of elastomeric engine mounts using artificial neural networks
This dissertation scope is the modeling of an elastomeric mount, element which has primordial role on powertrain vibration isolation. The study of the mechanic behavior of those elastomeric materials is a field being studied for several years agor since its complexity and non-linarity of those components; and a reliable math models are competitive edge. So t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2011
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9. Non linear geometric analysis of soil-structure interaction via BEM/FEM coupling / Análise não linear geométrica do acoplamento solo-estrutura através da combinação MEC-MEF
This work presents an alternative coupling of the boundary element method (BEM) and the finite element method (FEM) to create a computer program for non linear geometric analysis of frames coupled to continuous domains, applied to soil-structure interaction. A linear elastic behavior is considered for the soil, modeled by BEM. An alternative formulation is a
Publicado em: 2010
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10. 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
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11. Avaliação do comportamento mecanico de proteses fixas implantossuportadas por meio da tecnica de extensometria eletrica / Evaluation of mechanic behavior of fixed prosthesis implantsupported by means of electric extensometry technic
Frequently, stresses are caused by changes in adaptations of prosthetic structures to the implant besides marginal disajustment between prosthetic fixing and rehabilitations. This study aims to evaluate the distribution of compression and traction of the prosthetic sustainers and the methalic framework melted in cromocobalt alloy, through the monoblock techn
Publicado em: 2009
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12. Características mecânicas de vergalhões de aço auto-revenido
The rebar steel is one of the most utilized and diffused materials in Brazilian civil construction, as it is in the whole world, but it´s necessary to know more details about the rebar behavior as a material and not only as a structural element. Each day civil engineering searches for new alternatives to maximize the use of materials, from new structural ca
Publicado em: 2009