Pull Out
Mostrando 13-24 de 114 artigos, teses e dissertações.
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13. Investigation of dynamic instability of three plates switch under step DC voltage actuation using modified couple stress theory
Abstract In this paper dynamical instability of three-layer micro-switch under DC voltage actuation has been studied. Recent studies have used the classical beam theory while leaving out the length scale parameter. In this paper dynamic behavior of the switch has been investigated based on couple stress theory and considering the length scale parameter. To t
Lat. Am. j. solids struct.. Publicado em: 10/07/2018
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14. Interfacial Shear Stress with Pull-out Test at Zeolite Ceramic Matrix and SS316 Single Fiber
ABSTRACT Natural zeolite ceramic is a material that can be used as bioceramics but it is fragile to crack. The weakness of ceramics can be overcome by making ceramic metals. The use of SS316 (stainless steel 316) fiber to strengthen the zeolite ceramic had been done in order to determine the interfacial relationship by using a fiber pull-out test. The conten
Matéria (Rio J.). Publicado em: 05/03/2018
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15. Caracterização mecânica e morfológica de solados produzidos com resíduos de laminados de PVC da indústria calçadista
RESUMO A indústria de calçados emprega em seus produtos diversas matérias primas derivadas do setor de plásticos. Um dos mais utilizados é o laminado sintético de PVC, utilizado na construção de cabedais devido à grande versatilidade de cores, estampas e espessuras. O laminado é composto de PVC e de fibra têxtil, normalmente na proporção mássic
Matéria (Rio J.). Publicado em: 05/03/2018
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16. Aplicação de redes neurais artificiais na predição da aderência aço-concreto em ensaios do tipo pull-out
Resumo O estudo visa avaliar a possibilidade de se usar os resultados do ensaio de arrancamento “pull-out test” - ensaio de aderência aço-concreto para estimativa da resistência à compressão do concreto, este método vem sendo utilizado com sucesso pelo grupo de pesquisa APULOT, desde 2008 [1]. A pesquisa ora realizada evidencia a existência da cor
Rev. IBRACON Estrut. Mater.. Publicado em: 2017-09
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17. Experimental Study of the Compressive Strength of Multi-Coat Renders
Mortar compressive strength is a standard requirement and should be tested on stand-ardized specimens with a 40 mm square cross section. However, these specimens with only one type of mortar (base-coat layer) do not represent the render traditionally ap-plied to façades since that must consist of at least two layers (base coat and top coat, with different f
Mat. Res.. Publicado em: 13/07/2017
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18. Experimental Investigation of Steel-Concrete Bond for Thin Reinforcing Bars
Abstract The steel-concrete bond is a fundamental property in reinforced concrete structures. Although there are several studies on the steel-concrete bond, few of them have evaluated the performance of reinforcing bars with diameters less than 10.0 mm, which includes 5.0, 6.3, and 8.0 mm diameters, which are normally used in reinforced-concrete elements. Th
Lat. Am. j. solids struct.. Publicado em: 2017
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19. Effect of Sonic Vibrations on Bond Strength of Fiberglass Posts Bonded to Root Dentin
Resumo Vibrações sônicas podem melhorar a resistência e a durabilidade da união de pinos de fibra de vidro, melhorando a penetração do sistema adesivo à dentina, bem como o escoamento do cimento. O objetivo deste estudo foi avaliar o efeito da vibração sônica na resistência de união de pinos de fibra de vidro à dentina radicular, através de en
Braz. Dent. J.. Publicado em: 12/12/2016
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20. A relação tensão de aderência x deslizamento
Resumo Algumas normas estrangeiras regulamentam o uso do concreto de alto desempenho, as quais não podem ser adotadas nacionalmente sem considerar as diferenças que possam existir entre os materiais. Este artigo avalia o comportamento da aderência aço-concreto através do ensaio de arrancamento (Pull out test) para as barras de aço de fabricação nacio
Rev. IBRACON Estrut. Mater.. Publicado em: 2016-10
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21. Does MTA affect fiber post retention in repaired cervical root canal perforations?
Abstract This study evaluated the effect of mineral trioxide aggregate (MTA) on the retention of fiber posts in repaired root canal perforations. Ten-millimeter post spaces were prepared in 60 endodontically treated bovine incisors. Root perforations were created in half of the root canals in the cervical area prior to being filled with white MTA-Angelus. Fi
Braz. oral res.. Publicado em: 14/06/2016
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22. An Accurate Study on Capacitive Microphone with Circular Diaphragm Using a Higher Order Elasticity Theory
Abstract This study has been undertaken to investigate the mechanical behavior of the capacitive microphone with clamped circular diaphragm using modified couple stress theory in comparison to the classical one. Presence of the length scale parameter in modified couple stress theory provides the means to evaluate the size effect on the microphone mechanical
Lat. Am. j. solids struct.. Publicado em: 2016-04
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23. The Bond Strength Behavior of Polymer-modified Mortars During a Wetting and Drying Process
Polymer-modified mortars are highly popular for setting exterior tile systems and low-porosity ceramic tiles because they possess greater flexibility and higher bond strengths than conventional mortars which increases cladding serviceability. However, the long-term performance of this application is not completely understood and many pathologies has been rep
Mat. Res.. Publicado em: 24/11/2015
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24. Mechanical and Durability Performance of Polyacrylonitrile Fiber Reinforced Concrete
In this paper, the impact toughness, autogenous shrinkage, chloride penetration resistance, permeability resistance and abrasion resistance performance of prepared concrete reinforced with Polyacrylonitrile fiber (PAN fiber) were researched. The PAN fiber volume concentration percentages of cement were 0, 0.5%, 1.0%, 1.5% and 2.0%, respectively. The results
Mat. Res.. Publicado em: 03/11/2015