Behavior Performance Thermal Stress
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Mechanical characterization of PM aluminum composites by small punch test
ABSTRACT In this work Small Punch Test (SPT) was applied to study the mechanical behavior of ultrafine-grained Al-Al2O3metal matrix composites (MMCs) fabricated in situ via powder metallurgy route (HITEMAL®). Such MMCs show attractive mechanical properties, enhanced creep performance and increased thermal stability at elevated temperatures, not normally ass
Matéria (Rio J.). Publicado em: 19/07/2018
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2. Analysis of the transformations temperatures of helicoidal Ti-Ni actuators using computational numerical methods
The development of shape memory actuators has enabled noteworthy applications in the mechanical engineering, robotics, aerospace, and oil industries and in medicine. These applications have been targeted on miniaturization and taking full advantage of spaces. This article analyses a Ti-Ni shape memory actuator used as part of a flow control system. A Ti-Ni s
Mat. Res.. Publicado em: 10/05/2013
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3. Programa de suplementação de luz e relações entre variáveis fisiológicas e termográficas de bezerros em aleitamento em clima quente / Program of supplementary light and the relationship between physiological and thermography variables of suckling calves in hot weather
Este trabalho teve como objetivo avaliar um programa de suplementação de luz no desenvolvimento, desempenho e comportamento de bezerros em aleitamento e o uso da câmera termográfica como método para avaliação de variáveis fisiológicas por método não invasivo. O experimento foi realizado na Agência Paulista de Tecnologia dos Agronegócios - APTA,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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4. Influência de diferentes sistemas de criação na produção de frangos de corte industrial com ênfase no bemestar animal. / Influence of diffrent housing systems in broiler industrial chickens production emphasizing the animal welfare.
The general objective of this research is to evaluate three housing systems for broiler chickens production, aiming to characterize the thermal environment and the variables that may influence in the production system, determining the conditions favorable to better animal performance, based on indicators of welfare as response to the environment they are gro
Publicado em: 2008
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5. Fadiga termomecânica em ligas de ferro fundido cinzento para discos de freio automotivos / Thermomechanical fatigue in gray cast iron alloys to automotive brake discs
Brake discs are submitted to thermal and mechanical stress that can be relatively high during abrupt braking action happens (fractions of seconds), causing the temperature to reach values as high as 600ºC. This temperature variation results in thermal shocks that can generate cracks and/or a large amount of plastic deformation in the disk. The main aim of t
Publicado em: 2007
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6. Effect of passion fruit (Passiflora incarnata L. 1753) on the welfare of the Nile tilapia (Oreochromis niloticus L. 1759) / Efeito do maracujá (Passiflora incarnata L. 1753) sobre o bem-estar da tilápia do Nilo (Oreochromis niloticus L. 1759)
The effects of daily administration of passion fruit (Passiflora incarnata) dry extract, on welfare, social behavior and performance of juvenile Nile tilapia, Oreochromis niloticus were studied. Juvenile males of this species (86.02 ± 5.72g) were maintained under chemical, thermal and visual isolation in glass aquariums (30L) during seven days for acclimati
Publicado em: 2006
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7. Simulação MHD Bi-Dimensional da interação do vento solar com magnetosferas planetárias / Two-dimensional MHD simulation of the solar wind and planetary magnetospheres interaction
Space weather refers to conditions on the Sun and solar wind, magnetosphere and ionosphere that can influence the performance and reliability of ground-based technological systems and can aect the human life and health. The study of magnetospheres is of great scientific interest because it provides ideal laboratories to study the behavior of plasmas. The siz
Publicado em: 2006
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8. behaviour and performance of heifers and brown-Swiss girolanda system of rotational grazing on irrigated in the semi-arid northeast / comportamento e desempenho de novilhas pardo-suiÃa e girolanda em sistema de pastejo rotacionado irrigado no semi-Ãrido nordestino
The experiment took place at the experimental station of Vale do Curu (FEVC) of the Federal University of CearÃ. The station is located in the irrigated area of the Pentecoste county which is located in the semi-arid region of CearÃ. Heifers of Brown-Swiss an Girolanda were kept under a continuous grazing system with irrigated pasture of Panicum maximum (C
Publicado em: 2005
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9. Effects of isothermal treatment on microstructure and scratch test behavior of plasma sprayed zirconia coatings
The increase of the petroleum cost in the last decades revitalized the interest for lighter and more economic vehicles. Simultaneously, the demand for safe and unpolluted transports grows. The application of thermal barriers coatings (TBC) on combustion chamber and on flat surface of pistons reduces the thermal losses of the engines, resulting in higher temp
Materials Research. Publicado em: 2004-03