Residual Stresses Analysis of Ceramic Coating Materials

세라믹코팅재의 잔류응력 해석

  • Han, Ji-Won (Department of Mechanical Engineering, Hoseo university)
  • 한지원 (호서대학교 공과대학 기계공학과)
  • Published : 2008.06.30

Abstract

In the present work, the measurement method of residual stresses in thermal barrier coatings(TBCs) which are received the thermal shock is performed numerically. For this, the internal residual stresses are predicted by commercial FEM software ABAQUS because the hole drilling strain gage method measures residual stresses only near the surface of a material. As the results of this study, the residual stresses are linearly increased when the surface temperatures are over $1,200^{\circ}C$. It is also found that the values of residual stress are increased as the coating thickness is thin.

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