Frictionally-excited thermoelastic instability in functionally graded material

Yong Hoon Jang; Seong ho Ahn

doi:10.1016/j.wear.2006.11.011

Frictionally-excited thermoelastic instability in functionally graded material

Yong Hoon Jang, Seong ho Ahn

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

A transient finite element simulation is developed for the two-dimensional thermoelastic contact problem considering a stationary functionally graded material (FGM) between sliding layers, to investigate thermoelastic instability (TEI) due to frictional heating at the interface. The result shows that the critical speed of the FGM coating disk is larger than that of the conventional steel disk. The effect of the nonhomogeneity parameter in FGM is also investigated and it is implied that there is an optimal nonhomogeneity parameter which gives a maximum critical speed within a specific coating layer thickness. It is concluded that FGMs restrain the growth of perturbation and delay the contact separation.

Original language	English
Pages (from-to)	1102-1112
Number of pages	11
Journal	Wear
Volume	262
Issue number	9-10
DOIs	https://doi.org/10.1016/j.wear.2006.11.011
Publication status	Published - 2007 Apr 10

Bibliographical note

Funding Information:
Authors are pleased to acknowledge support from the Korea Research Foundation Grant (KRF-2004-003-D00009). They also acknowledge helpful comment and support from Prof. J.R. Barber at the University of Michigan and Dr. P. Zagrodzki at Raytech Composites.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.wear.2006.11.011

Cite this

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abstract = "A transient finite element simulation is developed for the two-dimensional thermoelastic contact problem considering a stationary functionally graded material (FGM) between sliding layers, to investigate thermoelastic instability (TEI) due to frictional heating at the interface. The result shows that the critical speed of the FGM coating disk is larger than that of the conventional steel disk. The effect of the nonhomogeneity parameter in FGM is also investigated and it is implied that there is an optimal nonhomogeneity parameter which gives a maximum critical speed within a specific coating layer thickness. It is concluded that FGMs restrain the growth of perturbation and delay the contact separation.",

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AU - Jang, Yong Hoon

AU - Ahn, Seong ho

N1 - Funding Information: Authors are pleased to acknowledge support from the Korea Research Foundation Grant (KRF-2004-003-D00009). They also acknowledge helpful comment and support from Prof. J.R. Barber at the University of Michigan and Dr. P. Zagrodzki at Raytech Composites.

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N2 - A transient finite element simulation is developed for the two-dimensional thermoelastic contact problem considering a stationary functionally graded material (FGM) between sliding layers, to investigate thermoelastic instability (TEI) due to frictional heating at the interface. The result shows that the critical speed of the FGM coating disk is larger than that of the conventional steel disk. The effect of the nonhomogeneity parameter in FGM is also investigated and it is implied that there is an optimal nonhomogeneity parameter which gives a maximum critical speed within a specific coating layer thickness. It is concluded that FGMs restrain the growth of perturbation and delay the contact separation.

AB - A transient finite element simulation is developed for the two-dimensional thermoelastic contact problem considering a stationary functionally graded material (FGM) between sliding layers, to investigate thermoelastic instability (TEI) due to frictional heating at the interface. The result shows that the critical speed of the FGM coating disk is larger than that of the conventional steel disk. The effect of the nonhomogeneity parameter in FGM is also investigated and it is implied that there is an optimal nonhomogeneity parameter which gives a maximum critical speed within a specific coating layer thickness. It is concluded that FGMs restrain the growth of perturbation and delay the contact separation.

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Frictionally-excited thermoelastic instability in functionally graded material

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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