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Mechanical behavior of isolated intervertebral disc
(2009-12-01)
The study on several components of intervertebral joints is essential to understand the spine's degenerative mechanisms and to assess the best method for their treatment. For such study it is necessary to know the mechanical ...
Behavior of the PMD coefficient of optical links under influence of mechanical and thermal effects
(2004-12-01)
This papers presents results on the variation of the PMD coefficient of optical links under influence of mechanical tests, such as tensile strength, bending and compression, and also during the application of a thermal ...
Optimization of the mechanical properties of low-carbon steels by formation of a multiphase microstructure
(2001-12-01)
In this work five methods of heat treatments are investigated in order to obtained convenient volume fractions of ferrite, bainite, martensite and retained austenite, starting with a low carbon steel and seeking the ...
Analysis of mechanical behavior in bending of polymer composites using the finite elements method
(2009-12-01)
The use of composite materials has increased in the recent decades, mainly in the aeronautics and automotives industries. In the present study is elaborated a computational simulation program of the bending test using the ...
Study of the phenomena of fatigue using the finite element method
(2007-12-01)
About 99% of mechanical failures are consequence of the phenomena of fatigue, which consists on the progressive weakening of the resistant section of a mechanical component due to the growing of cracks caused by fluctuating ...
Effect of the Oxygen on the Mechanical Properties of Ti-Mo Systems Alloys
(Medimond S R L, 2011-01-01)
Titanium alloys normally contain oxygen, nitrogen, or carbon as impurities, and although this concentration is low, these impurities cause changes in the mechanical properties of Ti alloys. Oxygen is a strong alpha-phase ...
Control Design Applied to a Micro Electro Mechanical System: MEMS Comb drive
(Trans Tech Publications Ltd, 2011-01-01)
This paper presents the linear optimal control technique for reducing the chaotic movement of the micro-electro-mechanical Comb Drive system to a small periodic orbit. We analyze the non-linear dynamics in a micro-electr ...
VIBRATIONS DUE TO IMPACT IN A NON IDEAL MECHANICAL SYSTEM WITH A NON-LINEAR HERTZIAN CONTACT MODEL
(Amer Soc Mechanical Engineers, 2014-01-01)
This work analyses the post impact behavior of a mechanical system consisting of an oscillator and an unbalanced non ideal electrical motor. The impact between the mechanical system and a rigid wall is based on the assumption ...
Mechanical characterization of a steel AISI 43100 submitted to different routes of heat treatments
(2014-01-01)
The present study aimed to explore possible thermal processing conditions of a steel AISI 43100, seeking the best combination of properties, especially strength and ductility. Different routes of heat treatments for ...
Mechanical alterations in airway smooth muscle after interaction with indoor pollutant - A mathematical model
(Águas de Lindóia, 2014-02-20)
The viscoelasticity of mammalian lung is determined by the mechanical properties and structural regulation of the airway smooth muscle (ASM). The exposure to polluted air may deteriorate these properties with harmful ...