Naslov
An efficient modelling of nonisothermal elastoplastic response of shell structures

Autori
Sorić, Jurica ; Tonković, Zdenko ; Krätzig, Wilfried, B.

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

Izvornik
Proceedings of the European Conference on Computational Mechanics / Wunderlich, Walter - München : Lehrstuhl fuer Statik, TU Muenchen, 1999, CD-ROM

Skup
European Conference on Computational Mechanics

Mjesto i datum
München, Njemačka, 31.08.1999. - 03.09.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nonisothermal hardening responses; Integration algorithms; Elastoplastic analysis; Shell structures

Sažetak
An efficient computational strategy for modelling of nonisothermal, highly nonlinear hardening responses in elastoplastic analysis of shell structures has been proposed. The closest point projection algorithm employing the Reissner-Mindlin type kinematic model, completely formulated in tensor notation, is presented. A consistent elastoplastic tangent modulus is derived which ensures high convergence rates in the global iteration approach. The integration algorithm has been implemented into a layered assumed strain isoparametric finite element, which also permits simulation of geometrical nonlinearity including finite rotations. Under the assumption of adiabatic deformation processes, the increase of the temperature is analysed during the elastoplastic deformation. The numerical examples illustrate the robustness and efficiency of the proposed algorithms.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA