Naslov
Finite Deformation Elasto-plastic updated Lagrangian-Hencky Formulation

Autori
Cvitanić, Vedrana ; Marović, Pavao ; Lozina, Željan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 3rd International Congress of Croatian Society of Mechanics / Marović, Pavao - Zagreb, 2000, 153-161

Skup
International Congress of Croatian Society of Mechanic (3 ; 2000)

Mjesto i datum
Cavtat, Hrvatska, 28.09.2000. - 30.09.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
numerical modelling ; finite elasto-plastic deformations ; multiplicative decomposition ; Hencky strain measure ; hyperelastic stress relation

Sažetak
In this article finite deformation elasto-plastic constitutive formulation that assumes concept of multiplicative decomposition of deformation gradient, uses total logarithmic strain measure and hyperelastic relation of constitutive equation for stress is presented and briefly discussed. This formulation is implemented into updated Lagrangian formulation of nonlinear motion. To achieve quadratic convergence in full Newton-Raphson procedure symmetric tangent elasto-plastic constitutive tensor is derived. Main characteristic of developed algorithm are examined and compared with those obtained using hypoelastic constitutive formulation on one plain strain element in finite elasto-plastic response.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Strojarstvo

POVEZANOST RADA