Friction Coefficient Variation with Sliding Velocity in Copper with Copper Contact

Anvari, Ali

doi:10.3311/ppme.8429

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License order to estimate the mechanical properties of materials, "friction coefficient variation with sliding velocity in copper with copper contact" is submitted by Anvari (2016), "frictional effect on stress and displacement fields in contact region" is presented by Adibnazari and Anvari (2017), and "cycle numbers to failure for magnesium and its alloys in human body fluid" is investigated by Alijani and Anvari (2018). Furthermore, currently, "probabilistic fatigue assessment for high-speed railway axles due to foreign object damage" is provided by Wu et al (2018).…”

Section: Introductionmentioning

confidence: 99%

Objects impact effect on thermal fatigue life of unidirectional T700 Carbon Fiber/Epoxy

Anvari¹

2019

J. Chem. Eng. Mater. Sci.

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The main objective of this study is to investigate the effect of meteorites and debris impact on thermal fatigue life of unidirectional T700 carbon fiber/epoxy composite material. This composite material may be applied in space structures for space missions. These structures are exposed to thermal cycles as they go in and out of the planet's shadow. If in this environmental condition, meteorites and debris impact with the structure, they may have effect on the thermal fatigue life of the structure. It means that the impact may decrease or increase the thermal cycles to failure of the structure in the presence of meteorite and/or debris. In this study, by applying experimental results and using analytical method attempt was made to estimate the thermal fatigue life in the presence of meteorite and/or debris impact, and thermal cycle condition. The results of this research can contribute to predict the thermal fatigue life in the presence of debris and/or meteorites impact to structure in possible future space missions. Furthermore, the results of this study have shown that the impact of debris and/or meteorites can increase the interlaminar shear stress between the T700 carbon fiber and epoxy which may result in crack formation and decrease the thermal fatigue life.

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Section: Introductionmentioning

confidence: 99%

Objects impact effect on thermal fatigue life of unidirectional T700 Carbon Fiber/Epoxy

Anvari¹

2019

J. Chem. Eng. Mater. Sci.

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“…Furthermore, in applying analytical method to obtain new equations in order to estimate the mechanical properties of materials, "friction coefficient variation with sliding velocity in copper with copper contact" is presented by Anvari (2016), "frictional effect on stress and displacement fields in contact region" is submitted by Adibnazari and Anvari (2017) and "cycle numbers to failure for magnesium and its alloys in human body fluid" is provided by Alijani and Anvari (2018).…”

Section: Introductionmentioning

confidence: 99%

Critical temperature estimation method for triple-walled carbon nanotubes (CNTs)/epoxy resin composite material

Anvari¹

2018

J. Chem. Eng. Mater. Sci.

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The main objective of this research is to estimate the critical temperature for triple-walled carbon nanotubes (CNTs)/epoxy resin. Critical temperature in this study is the temperature that inter-laminar shear stress in interfaces of triple-walled CNTs and epoxy resin is the maximum value. At maximum inter-laminar shear stress, the stress concentration between triple-walled CNTs and epoxy resin is the maximum. This phenomenon may cause crack initiation, propagation and fracture in fibers/matrix interfaces. In the presented study, this temperature is derived by applying analytical method. The results of this research showed that maximum inter-laminar shear stress could occur at 85°C, which appears to be the critical temperature. The results of this research could be applied in any industry dealing with thermal stress and thermal cycles.

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“…Furthermore, in the area of obtaining analytical evaluation methods for determining mechanical properties of different materials, a few works are submitted by Anvari (2014Anvari ( , 2016aAnvari ( , 2016bAnvari ( , 2017Anvari ( , 2017aAnvari ( , 2017bAnvari ( , 2017c. Moreover, in the area of contact mechanics, a few publications are presented by Areias et al (2014Areias et al ( , 2015 and Timon and Huilong (2017).…”

Section: Introductionmentioning

confidence: 99%

Frictional effect on stress and displacement fields in contact region

Adibnazari¹,

Anvari²

2017

J. Mech. Eng. Res.

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In this study, by applying Giannakopoulos and Pallot's stress and displacement equations, and using the Goryacheva's friction model, the stress and displacement equations are obtained. Finally, by applying analytical method, these equations are solved. By assuming that the roller is rigid and the substrate is almost homogeneous with constant Poisson ratio and constant elastic modulus, the results of frictional effect on stress and displacement fields are achieved and are shown in figures. Using different amounts of friction coefficient, the effect of friction coefficient on stress and displacement inside the contact region in the figures is observed. The new results achieved by the analytical method used in this study for obtaining tangential stress and displacement inside the contact region is compared with the results that were already achieved for obtaining tangential stress and displacement inside the contact region in another study. The comparison between the two analytical methods showed similarity in the results that are achieved by both methods. These results may be very advantageous in the design of suitable substrate and cylinder that are in contact, especially in the model that the substrate is almost homogeneous and the cylinder is rigid.

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Friction Coefficient Variation with Sliding Velocity in Copper with Copper Contact

Abstract: In this paper, by applying analytical method and using experimental

Cited by 10 publications

References 10 publications

Objects impact effect on thermal fatigue life of unidirectional T700 Carbon Fiber/Epoxy

Objects impact effect on thermal fatigue life of unidirectional T700 Carbon Fiber/Epoxy

Critical temperature estimation method for triple-walled carbon nanotubes (CNTs)/epoxy resin composite material

Frictional effect on stress and displacement fields in contact region

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