Naslov
Robust simulation techniques for realistic elastoplastic shell responses

Autori
Sorić, Jurica ; Montag, Ulrich

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

Izvornik
Computational Plasticity, Fundamentals and Applications. Proceedings of the Fifth International Conference on Computational Plasticity / Owen, D. R. J. ; Onate, E. ; Hinton, E. - : International Center for Numerical Methods in Engineering (CIMNE), 1997, 1985-1992

Skup
Fifth International Conference on Computational Plasticity

Mjesto i datum
Barcelona, Španjolska, 17.04.1997. - 20.04.1997

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Nonlinear shell analysis; realistic elastoplastic behaviour; closest point projection algorithm; consistent elastoplastic tangent modulus.

Sažetak
A robust and unconditionally stable computational strategy for modelling a realistic elastoplastic behaviour of shell structures is presented. A complex material model for mild steel determined by the experimental studies is embedded into the formulation. An elastoplastic tangent modulus consistent with a closest point projection return mapping algorithm, completely formulated in tensor notation, is employed. The integration algorithm is implemented into a four-noded isoparametric assumed strain finite element based on Reissner-Mindlin type shell kinematic model, which also permits the simulation of geometric nonlinear responses assuming finite rotations. The numerical example shows a quadratic rate of convergence in the global iterative procedures and numerical stability at very large load steps.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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