A computational procedure for estimating residual stresses and secondary plastic flow limits in nonlinearly strain hardening rotating shafts


Eraslan A. , Mack W.

FORSCHUNG IM INGENIEURWESEN-ENGINEERING RESEARCH, cilt.69, ss.65-75, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 69 Konu: 2
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s10010-004-0138-7
  • Dergi Adı: FORSCHUNG IM INGENIEURWESEN-ENGINEERING RESEARCH
  • Sayfa Sayıları: ss.65-75

Özet

A computational procedure to estimate the residual stress distributions and the limit angular speeds for avoiding secondary plastic deformation in nonlinearly strain hardening rotating elastic-plastic shafts is given. The model is based on von Mises yield condition, J(2) deformation theory and a Swift-type hardening law. The boundary value problem for the governing nonlinear differential equation is solved by a shooting method using Newton iterations with numerically approximated tangent. Solid as well as hollow cylinders are discussed and both fixed and free ends are taken into account.