Stress distributions in cooling fins of variable thickness with and without rotation

Eraslan A., Kartal M.

JOURNAL OF THERMAL STRESSES, vol.28, no.8, pp.861-883, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 8
  • Publication Date: 2005
  • Doi Number: 10.1080/01495730590964864
  • Journal Name: JOURNAL OF THERMAL STRESSES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.861-883
  • Keywords: thermoelastoplasticity, cooling fin, variable thickness, nonlinear strain hardening, von Mises criterion, RADIAL TEMPERATURE-GRADIENT, SOLID DISKS
  • Middle East Technical University Affiliated: Yes

Abstract

A computational model is developed to predict elastic and elastic-plastic stress distribution in a nonlinearly hardening cooling fin of variable thickness subject to centrifugal force. The model is based on a realistic conduction-convection mechanism, von Mises yield criterion, Henky's deformation theory and a Swift-type strain hardening law. Temperature dependency of modulus of elasticity, uniaxial yield limit, coefficient of thermal expansion, and thermal conductivity of the fin material is taken into account.