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Non-Fourier Heat Conduction of a Functionally Graded Cylinder Containing a Cylindrical Crack

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  • Jiawei Fu
  • Keqiang Hu
  • Linfang Qian
  • Zengtao Chen

Abstract

The present work investigates the problem of a cylindrical crack in a functionally graded cylinder under thermal impact by using the non-Fourier heat conduction model. The theoretical derivation is performed by methods of Fourier integral transform, Laplace transform, and Cauchy singular integral equation. The concept of heat flux intensity factor is introduced to investigate the heat concentration degree around the crack tip quantitatively. The temperature field and the heat flux intensity factor in the time domain are obtained by transforming the corresponding quantities from the Laplace domain numerically. The effects of heat conduction model, functionally graded parameter, and thermal resistance of crack on the temperature distribution and heat flux intensity factor are studied. This work is beneficial for the thermal design of functionally graded cylinder containing a cylindrical crack.

Suggested Citation

  • Jiawei Fu & Keqiang Hu & Linfang Qian & Zengtao Chen, 2020. "Non-Fourier Heat Conduction of a Functionally Graded Cylinder Containing a Cylindrical Crack," Advances in Mathematical Physics, Hindawi, vol. 2020, pages 1-11, February.
    • Handle: RePEc:hin:jnlamp:8121295
    DOI: 10.1155/2020/8121295
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