Thermal stresses in elastic-plastic tubes with temperature-dependent mechanical and thermal properties

Orcan Y., Eraslan A.

JOURNAL OF THERMAL STRESSES, cilt.24, sa.11, ss.1097-1113, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 11
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1080/01495730152620087
  • Dergi Adı: JOURNAL OF THERMAL STRESSES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1097-1113
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The thermoelastic-plastic deformations of internal heat-generating tubes are investigated by considering the temperature dependence of the thermal conductivity coefficient, Young's modulus, the coefficient of thermal expansion, and the yield limit of the material. A model describing the elastic-plastic behavior of the tube is developed. The model consists of a system of two second-order ordinary differential equations and a first-order ordinary differential equation involving nonlinear temperature-dependent coefficients. The computer solution of the model is obtained, and the results are compared with the analytical solution that assumes constant thermomechanical properties. It is found that the difference between the two solutions becomes significant in the regions of high temperatures.