Thermo Elasticity
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Influência do envelhecimento termo-oxidativo nas propriedades mecânicas e de amarelamento de blendas de poliestireno com borracha reciclada de estireno-butadieno (SBR)
RESUMO Este trabalho teve como objetivo avaliar o envelhecimento termo-oxidativo, nas propriedades mecânicas e de índice de amarelamento (YI), de blendas de poliestireno com borracha reciclada (SBRr), compatibilizadas. As blendas foram preparadas, inicialmente, em uma extrusora de rosca dupla corrotacional e, posteriormente, os grânulos extrudados foram m
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Physical-mechanical properties of laminated bamboo panels
RESUMO O bambu é um material utilizado em escala global em diversas áreas. Contudo, necessita de aprimoramento nos processos para utilização industrial, no Brasil. A produção de painéis laminados colados está em crescimento no mundo e pode ser uma fonte de recursos para esse fim. Objetivou-se avaliar as propriedades físico-mecânicas de painéis lam
Pesqui. Agropecu. Trop.. Publicado em: 08/04/2019
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3. Thermo-mechanical vibration analysis of annular and circular graphene sheet embedded in an elastic medium
In this study, the vibration behavior of annular and circular graphene sheet coupled with temperature change and under in-plane pre-stressed is studied. Influence of the surrounding elastic medium 011 the fundamental frequencies of the single-layered graphene sheets (SLGSs) is investigated. Both Winkler-type and Pasternak- type models are employed to simulat
Lat. Am. j. solids struct.. Publicado em: 2014-08
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4. Mejoramiento de las propiedades de tensión en WPC de LDPE: HIPS/fibra natural mediante entrecruzamiento con DCP
Straight Retamo Fiber (telinemonspessulana) was mixed in a polymer matrix formed by low density polyethylene (LDPE) and high impact polystyrene (HIPS) in a 70:30 ratio. The natural fiber was subjected to size reduction between 1700 and 850 µm; surface treatment mercerization was performed; the moisture content was 0.17%. The thermo gravimetric analysis (TGA
Polímeros. Publicado em: 09/05/2014
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5. Exact solution for thermo-mechanical vibration of orthotropic mono-layer graphene sheet embedded in an elastic medium
In this paper, the effect of the temperature change on the vibration frequency of mono-layer graphene sheet embedded in an elastic medium are studied. Using the nonlocal elasticity theory, the governing equations are derived for single-layered graphene sheets. Using Levy and Navier solutions, analytical frequency equations for single-layered graphene sheets
Lat. Am. j. solids struct.. Publicado em: 2014-05
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6. Modeling and analysis of waves in a heat conducting thermo-elastic plate of elliptical shape
Wave propagation in heat conducting thermo elastic plate of elliptical cross-section is studied using the Fourier expansion collocation method based on Suhubi's generalized theory. The equations of motion based on two-dimensional theory of elasticity is applied under the plane strain assumption of generalized thermo elastic plate of elliptical cross-sections
Lat. Am. j. solids struct.. Publicado em: 2014
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7. Some physical and mechanical properties of medium-density fiberboard made from giant bamboo
The objective of this study was to evaluate the density, density profile, water swelling and absorption, modulus of elasticity and rupture from static bending, and tensile strength of experimental medium-density fiberboards manufactured using Dendrocalamus giganteus (Munro bamboo). The fiber production was carried out through the chemo-thermo-mechanical pulp
Mat. Res.. Publicado em: 02/08/2013
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8. Estudo e desenvolvimento de código computacional para análise de impacto entre estruturas levando em consideração efeitos térmicos / Study and development of computational code to analyze impact in structures considering thermal effects
It becomes quite important study the thermal effects when considering impact in structures, because besides the mechanical energy changing into heat, one may consider the changes in the material properties due overheating. In this sense, the main goal of this work is develop a thermodynamic formulation and its implementation, based in the Helmholtz free-ener
Publicado em: 2009
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9. Transdutores eletromecânicos de eletretos poliméricos com bolha de ar termoformada / Electromechanical transducers of polymeric electrets with thermo-formed air bubble
A sensibilidade eletromecânica dos transdutores de eletretos poliméricos resulta em muitas aplicações na engenharia, que motivaram a produção industrial de um filme não homogêneo e eletricamente carregado, denominado filme eletromecânico ou EMFi (ElectroMechanical Film). Um dispositivo alternativo a este EMFi, produzido em nosso laboratório, foi o
Publicado em: 2007