Effect of functionally graded material on frictionally excited thermoelastic instability

Seung Wook Lee, Yong Hoon Jang

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Thermoelastic instability (TEI) is investigated focusing on the effect of functionally graded materials (FGM) where the FGM half plane slides against a homogeneous conducting or rigid non-conducting body at speed V. Results confirm analytically that there is maximum critical speeds occurring at a certain value of non-homogeneous parameter of FGM within a range of thermal conductivity, which was reported previously in the simulation model [Y.H. Jang, S.-H. Ahn, Frictionally-excited thermoelastic instability on functionally graded material, Wear 262 (2007) 1102-1112]. The effect of non-homogeneous parameters for FGM on thermoelastic instability shows that the non-homogeneous parameters of the elastic modulus and thermal expansion coefficient are strong influential factors. It is also found that when the non-homogeneous parameters of FGM range between two positive bounded values, unconditionally stable behavior is shown for a range of thermal conductivity.

Original languageEnglish
Pages (from-to)139-146
Number of pages8
JournalWear
Volume266
Issue number1-2
DOIs
Publication statusPublished - 2009 Jan 5

Fingerprint

Functionally graded materials
thermal conductivity
half planes
critical velocity
Thermal conductivity
chutes
thermal expansion
modulus of elasticity
conduction
expansion
Thermal expansion
coefficients
Elastic moduli
Wear of materials
simulation

All Science Journal Classification (ASJC) codes

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

Cite this

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Effect of functionally graded material on frictionally excited thermoelastic instability. / Lee, Seung Wook; Jang, Yong Hoon.

In: Wear, Vol. 266, No. 1-2, 05.01.2009, p. 139-146.

Research output: Contribution to journalArticle

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AU - Jang, Yong Hoon

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