Transient hyperbolic heat conduction in thick-walled FGM cylinders and spheres with exponentially-varying properties

Keles I., Conker C.

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, cilt.30, sa.3, ss.449-455, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.euromechsol.2010.12.018
  • Dergi Adı: EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.449-455
  • Anahtar Kelimeler: FGM, Exponential variation, Hollow cylinder and sphere, Hyperbolic heat conduction, HOLLOW SPHERE, SURFACE
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

This paper focuses on non-Fourier hyperbolic heat conduction analysis for heterogeneous hollow cylinders and spheres made of functionally graded material (FGM). All the material properties vary exponentially across the thickness, except for the thermal relaxation parameter which is taken to be constant. The cylinder and sphere are considered to be cylindrically and spherically symmetric, respectively, leading to one-dimensional heat conduction problems. The problems are solved analytically in the Laplace domain, and the results obtained are transformed to the real-time space using the modified Durbin's numerical inversion method. The transient responses of temperature and heat flux are investigated for different inhomogeneity parameters and relative temperature change values. The comparisons of temperature distribution and heat flux between various time and material properties are presented in the form of graphs. (C) 2011 Elsevier Masson SAS. All rights reserved.