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Acta Mechanica Sinica

, Volume 35, Issue 1, pp 99–111 | Cite as

Frictionally excited thermoelastic dynamic instability of functionally graded materials

  • J. Liu
  • L. L. KeEmail author
  • Y. S. Wang
Research Paper
  • 32 Downloads

Abstract

The perturbation method is applied to investigate the frictionally excited thermoelastic dynamic instability (TEDI) of a functionally graded material (FGM) coating in half-plane sliding against a homogeneous half-plane. We assume that the thermoelastic properties of the FGM vary exponentially with thickness. We also examine the effects of the gradient index, sliding speed, and friction coefficient on the TEDI for various material combinations. The transverse normal stress for two different coating structures is calculated. Furthermore, the frictional sliding stability of two different coating structures is analyzed. The obtained results show that use of FGM coatings can improve the TEDI of this sliding system and reduce the possibility of interfacial failure by controlling the interfacial tensile stress.

Keywords

Thermoelastic dynamic instability Frictional heat Functionally graded materials Stress analysis 

Notes

Acknowledgements

The work was supported by the National Natural Science Foundation of China (Grants 11502089 and 11725207).

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of EngineeringHuazhong Agricultural UniversityWuhanChina
  2. 2.Institute of Engineering MechanicsBeijing Jiaotong UniversityBeijingChina

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