Behavior of granite-epoxy composite beams subjected to mechanical vibrations

Piratelli-Filho, Antonio; Levy-Neto, Flamínio

doi:10.1590/s1516-14392010000400012

Cited by 38 publications

(21 citation statements)

References 8 publications

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“…The composite samples of 80% of granite and 20% of epoxy resin by weight were tested for damping behavior by the logarithmic decrement method. It was found that damping properties were approximately three times greater than grey cast iron [2]. The damping behavior was examined at equal stiffness of epoxy granite, cast iron and steel.…”

Section: Fig 1 Process Of Epoxy Granitementioning

confidence: 99%

Stiffness and Damping of Epoxy Granite

Ubale¹,

Nimbalkar²,

Chavan³

2020

IJEAT

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The productivity and accuracy of machine tools now became most significant as the cutting conditions changes continuously. Therefore to withstand against these cutting conditions the machine tool structural material must have higher stiffness and damping. This review deals with various research works to study the stiffness and damping of epoxy granite or polymer concrete. It is reported that the epoxy granite shows improved damping and high strength to weight ratio than that of conventional machine tool structures of steel and cast iron.

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Section: Fig 1 Process Of Epoxy Granitementioning

confidence: 99%

Stiffness and Damping of Epoxy Granite

Ubale¹,

Nimbalkar²,

Chavan³

2020

IJEAT

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“…Vibration analyses such as modal analysis are used to obtain information of vibration characteristics such as natural frequencies, damping ratios, mode shapes, modal stiffness, etc. [10][11]. In this study, the vibration behaviors of porous metal matrix composites have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Vibration Behavior of Composite Materials Produced by Waste Metal Recycling

Güneş¹,

Gülbahçe²,

Salur³

et al. 2019

International Journal of Computational and Experimental Science and Engineering

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In this study, waste metal chips were transformed into metal matrix composites by isostatic hot pressing and the vibrational behavior of these composite materials was investigated. Bronze chips (CuSn10) was used as a matrix component and spheroidal cast iron (GGG40) chips were used as reinforcement component. The metal matrix composites are produced with different GGG40 contents as 40%-30%-20% and 10%. Metal chips were pressed at pressure of 170 MPa and a temperature of 450 °C during production. The results of natural frequency and modal stiffness were evaluated on the basis of mixture ratios by applying the impact hammer test to the metal matrix composite materials produced.

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“…Also, the good damping property enables the granite to vibrate at the fast logarithmic decreased rate, about 5-10 times of cast iron. [17][18][19][20] Obviously, because of the anti-vibration property, the machine tools constructed with composite materials are expected to produce better surface roughness and the shape accuracy of the machined parts. For example, Chang and colleagues 21,22 and Lee et al 23 used composite materials in the design of machine tool structures in an attempt to improve structural damping of machine tool structures.…”

Section: Introductionmentioning

confidence: 99%

Design analysis of machine tool structure with artificial granite material

Chen

Hung

et al. 2016

Advances in Mechanical Engineering

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Artificial granite material has been used for construction of the high-precision machine due to superior damping ability. However, its lower material stiffness also lessens the application in fabrication of the machine tool. The purpose of this study was therefore aimed to verify the structure performance of the machine tool reformed with artificial granite material, instead of the casting iron. To gain insight into the optimized configuration of the vertical columns and spindle head stock, the static and dynamic characteristics of the machine models with cast iron and granite composites were predicted for comparison. With this, evaluations of the machine with different design were made to examine the experimental measurements on the prototype machine. According to the simulation results and experimental measurements, the static stiffness of the machine tool reformed with granite material is comparable to the original casting machine, differed by 8% approximately. However, granite machine shows superior dynamic stiffness, about 0.5-1.3 times of the conventional casting machine. This study verifies the feasibility and effectiveness in fabrication of the machine tool with the artificial composite material and provides the improvements for further fabrications.

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Behavior of granite-epoxy composite beams subjected to mechanical vibrations

Cited by 38 publications

References 8 publications

Stiffness and Damping of Epoxy Granite

Stiffness and Damping of Epoxy Granite

Vibration Behavior of Composite Materials Produced by Waste Metal Recycling

Design analysis of machine tool structure with artificial granite material

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