Naslov
Elasto-plasticity in the non-linear thin shell modelling

Autori
Damjanić, Frano B. ; Brank, Boštjan ; Perić, Đorđe

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

Izvornik
Computational Plasticity: Fundamentals and Applications - COMPLAS 97 / Owen, D.R.J. ; Onate, Eugenio ; Hinton, Ernie - Barcelona : International Center for Numerical Methods in Engineering (CIMNE), 1997, 1890-1897

Skup
5th International Conference on Computational Plasticity: Fundamentals and Applications

Mjesto i datum
Barcelona, Španjolska, 17.03.1997. - 20.03.1997

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
elasto-plasticity; non-linear thin shell modelling; large displacements; large rotations; consistent linearisation

Sažetak
The specialised numerical model for the non-linear analysis of thin shells is considered. The shell model formulation, equivalent to the 2D Cosserat continuum, is developed from the 3D continuume by employing the standard assumptions on the distribution of displacement field in a shell body. This model earlier developed (1,2), which is able to describe large displacements, large rotations but small strains, is extended to include elasto-plastic constitutive model based on the von Mises yield criterion and isotropic hardening is adopted. A finite element formulation based on the 4-node isoparametric element is used. A consistent linearisation of the shell kinematics and elasto-plastic material model is performed in order to achieve an efficient algorithm with quadratic rate of asymptotic convergence typical for Newton-Raphson procedure.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA