Naslov
On stable numerical simulation strategies for elasto-plastic deformation processes of shell structures

Autori
Montag, U. ; Kraetzig, W.B. ; Sorić, Jurica

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

Izvornik
Advances in Computational Methods for Simulation / B.H.V. Topping - Edinburgh, 1996, 61-71

Skup
Advances in Computational Methods for Simulation

Mjesto i datum
Budimpešta, Mađarska, 21.08.1996. - 23.08.1996

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
elasto-plastic shell structures; isoparametric finite element; finite rotation Reissner-Mindlin shell theory; layered approach; nonlinear material behaviour; isotropic hardening; consistently linearized constitutive relations; quadratic rate of convergence

Sažetak
The present paper introduces a highly efficient numerical simulation strategy for the analysis of elasto-plastic shell structures. An isoparametric Finite Element, based on a Finite Rotation Reissner-Mindlin shell theory in isoparametric formualtion, is enhanced by a Layered Approach for a realisitic simulation of nonlinear material behaviour. A general material model including isotropic hardening effects is embedded into each material point. A new, highly accurate integration scheme is combined with consistently linearized constitutive relations in order to achieve quadratic rate of convergence. A global Riks-Wempner-Wessels iteration scheme enhanced by a linear Line-Search procedure has been used to trace arbitrary deformation paths. Numerical examples show efficiency of the present concept.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA