Exact integration of constitutive equations in elasto-plasticity

Summary, in English

A unified approach is presented for establishing exact integration of the constitutive equations in elastoplasticity, assuming the total strain-rate direction to be constant. This unified approach includes all previous exact integration procedures as special cases and, in addition, some new closed-form solutions are derived for combined kinematic and isotropic hardening. Special emphasis is laid on combined kinematic and isotropic hardening for von Mises' material and on isotropic hardening for Mohr-Coulomb and Tresca materials.

• Författare: Matti Ristinmaa; Johan Tryding
• Avdelning/ar: Hållfasthetslära
• Publiceringsår: 1993
• Språk: Engelska
• Sidor: 2525-2544
• Publikation/Tidskrift/Serie: International Journal for Numerical Methods in Engineering
• Volym: 36
• Issue: 15
• Länkar: http://dx.doi.org/10.1002/nme.1620361503
• Dokumenttyp: Artikel i tidskrift
• Förlag: John Wiley & Sons Inc.
• Ämne: Mechanical Engineering
• Nyckelord: Closed form solutions; Constitutive equations; Isotropic hardening; Kinematic hardening; Mohr Coulomb materials; Tresca materials; von Mises' materials; Finite element method
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 1097-0207