A parametric study on the elastic-plastic deformation of a centrally heated two-layered composite cylinder with free ends

Yalcin F., Ozturk A., Gulgec M.

Archives of Mechanics, cilt.68, sa.3, ss.203-228, 2016 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 68 Sayı: 3
  • Basım Tarihi: 2016
  • Dergi Adı: Archives of Mechanics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.203-228
  • Anahtar Kelimeler: Composite cylinder, Elastic-plastic stress analysis, Thermal stress, Tresca's criterion, Yielding
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2016 by IPPT PAN.In this paper, an elastic-plastic deformation of a centrally heated two-layered composite cylinder with free ends subjected to uniformly distributed internal energy generation within an inner cylinder is studied using Tresca's yield condition and its associated flow rule. Stress, strain and displacement distributions in the composite cylinder made of elastic-perfectly plastic material are derived considering the influence of geometric parameters as well as material properties such as yield strength, modulus of elasticity, Poisson's ratio, coefficient of thermal conduction and coefficient of thermal expansion. Yielding starts at the outer boundary or at the axis corresponding to an 'edge regime' of Tresca's prism in both cases. Propagations of the plastic regions are studied due to an increase of a heat generation.