Dynamic behavior of a functionally graded coating subjected to moving contact with a semi-circular punch

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Balci M. N., Dağ S.

15th International Symposium On Functionally Graded Materials (isFGMs 2018), Kitakyushu, Japonya, 5 - 08 Ağustos 2018, sa.44001, ss.1-4, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Kitakyushu
  • Basıldığı Ülke: Japonya
  • Sayfa Sayıları: ss.1-4
  • Hacettepe Üniversitesi Adresli: Evet

Özet

The main aim of this study is to analyze the dynamic behavior of FGM coatings subjected to frictional contact with a rigid moving punch. The punch has a semi-circular profile and it moves steadily over the FGM coating at a constant subsonic speed. Governing partial differential equations are derived based on a two-dimensional elastodynamics theory. Galilean and Fourier transformation techniques are used and the mixed boundary value problem is reduced to a singular integral equation which is solved numerically using a suitable expansion-collocation technique. Results of the analytical method are compared with those available in the literature and a good agreement is achieved. Results of the present study clearly show the effect of punch speed on contact stress distributions.