Sandwich Structures
Mostrando 13-24 de 49 artigos, teses e dissertações.
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13. Studies on thermal and viscoelastic properties of vinyl ester resin and its composites with glass fiber
Vinyl ester resins are widely used in sandwich composite structures. Because of their good resistance to chemicals, flexibility and easy processing, these sandwich are extensively applied in the marine sector. These composites are typically manufactured by liquid molding processes, especially infusion. In this study, RTM light was used to inject the polymeri
Matéria (Rio J.). Publicado em: 2015-03
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14. A numerical simulation of metallic cylindrical sandwich shells subjected to air blast loading
The dynamic response of cylindrical sandwich shells with aluminum foam cores subjected to air blast loading was investigated numerically in this paper. According to KNR theory, the nonlinear compressibility of the air and finite shock conditions were taken into account in the finite element model. Numerical simulation results show that the compression strain
Lat. Am. j. solids struct.. Publicado em: 2013-05
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15. Finite element reduction strategy for composite sandwich plates with viscoelastic layers
Composite materials have been regarded as a convenient strategy in various types of engineering systems such as aeronautical and space structures, as well as architecture and light industry products due to their advantages over the traditional engineering materials, such as their high strength/stiffness relation characteristics and their anti-corrosion prope
Mat. Res.. Publicado em: 21/12/2012
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16. Impact properties of aluminium - glass fiber reinforced plastics sandwich panels
Aluminium - glass fiber reinforced plastics (GFRP) sandwich panels are hybrid laminates consisting of GFRP bonded with thin aluminum sheets on either side. Such sandwich materials are increasingly used in airplane and automobile structures. Laminates with varying aluminium thickness fractions, fiber volume fractions and orientation in the layers of GFRP were
Materials Research. Publicado em: 27/03/2012
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17. The mechanical response of metallic sandwich beams under foam projectile impact loading
The dynamic response of the clamped sandwich beams was investigated by impacting the beams at mid-span with metal foam projectiles. Efects of applied impulse, face-sheet thickness and core thickness on the impact resistance of sandwich beams are discussed. Using strain gauge measurement technique, the deformation mechanism of sandwich beams was analyzed in t
Latin American Journal of Solids and Structures. Publicado em: 2011
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18. Modelos de material para espumas poliméricas aplicadas a estruturas aeronáuticas em material compósito sanduíche / Material models for polymeric foams applied to aircraft structures in sandwich composite materials
Estruturas aeronáuticas são em sua grande parte fabricadas em material compósito para que sejam atendidas as especificações de projeto. Entre essas estruturas destaca-se a estrutura sanduíche. A utilização desse tipo de estrutura requer estudos extensos em novos materiais, bem como na aplicação dos mesmos. Uma atenção especial para o núcleo dess
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2010
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19. Sandwich structures analysis : design parameters / Analise de estruturas sanduiche : parametros de projeto
The sandwich structures have aroused great interest and have already been very widespread in several branches in industries, such as in the aerospace, military, naval and civil construction industries. This is due to their property to combine both high bending rigidity and the low weight, resulting in a very efficient structure. Thus, the analysis and also t
Publicado em: 2008
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20. Modelagem de uma embalagem de papelão ondulado para produtos horticolas
This work tried to assembled the informations and the methodologies for the modeling of the corrugated paperboard by the finite element method with the objective of realize the modeling in the program ANSYS and identify the advantages and restrictions of this method. Get a package modeling with opening destined for horticultural products. Of extant informati
Publicado em: 2004
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21. Estruturas tipo sanduíche com placas de argamassa projetada / Sandwich-type structures with plates made of projected mortar
Sandwichtype elements, with plates made of projected mortar, have been used in the construction of buildings in some countries, including Brazil, showing expressive thermical, acoustical and mechanical strength characteristics. In general, the application of this kind of element have been limited to buildings, mainly used as cladding panels, with carrying
Publicado em: 2002
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22. Otimização de painéis sanduíche utilizando o método de recozimento simulado / Optimization of a sandwich panels by using the simulated annealing method
A redução da massa de estruturas espaciais é importante, pois possibilita o aumento da carga útil e/ou vida útil dos veículos espaciais. Como conseqüência disso, a utilização dos painéis sanduíche devido a sua configuração vem crescendo nos últimos anos, pois estes painéis possuem uma relação rigidez/peso elevada. O problema abordado neste
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2000
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23. CONTRÔLE HYBRIDE ACTIFPASSIF DES VIBRATIONS DE STRUCTURES PAR DES MATÉRIAUX PIÉZOÉLECTRIQUES ET VISCOÉLASTIQUES : POUTRES SANDWICH/MULTICOUCHES INTELLIGENTES
This thesis presents a numerical analysis of the structural vibrations damping obtained by passive, active and hybrid active-passive damping treatments. For that, a finite element model of a sandwich beam which layers can be elastic, piezoelectric or viscoelastic is presented. It is validated through comparisons with analytical, experimental and numerical re
Publicado em: 2000
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24. Optimization of a sandwich panels by using the simulated annealing method / Otimização de painéis sanduíche utilizando o método de recozimento simulado
A redução da massa de estruturas espaciais é importante, pois possibilita o aumento da carga útil e/ou vida útil dos veículos espaciais. Como conseqüência disso, a utilização dos painéis sanduíche devido a sua configuração vem crescendo nos últimos anos, pois estes painéis possuem uma relação rigidez/peso elevada. O problema abordado neste
Publicado em: 2000