On the elastic-plastic deformation of a rotating disk subjected to a radial temperature gradient


Eraslan A. , Akis T.

MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES, cilt.31, ss.529-561, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 31 Konu: 4
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1081/sme-120023170
  • Dergi Adı: MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
  • Sayfa Sayıları: ss.529-561

Özet

Elastic-plastic stress distribution in a nonisothermal rotating annular disk is analyzed by the use of Tresca and von Mises criteria. An energy equation that accounts for the convective heat transfer with a variable heat transfer coefficient is modeled. For a given angular velocity, the steady temperature distribution in the disk is obtained by the analytical solution of the energy equation. Tresca yield criterion and its associated flow rule are used to obtain the analytical stress distributions for a linearly hardening material. A computational model is developed to analyze elastic-plastic deformations of the disk using von Mises yield criterion and its flow rule. This model incorporates Swift's hardening law to simulate linear as well as nonlinear hardening material behavior. It is shown that the stress distribution in the disk is affected significantly by the presence of the temperature gradient.