Naslov
Computer simulation of nonisothermal elastoplastic shell responses

Autori
Kraetzig, Wilfried B. ; Montag, Ulrich ; Sorić, Jurica ; Tonković, Zdenko

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Advances in the Mechanics of Plates and Shells

Urednik/ci
Durban, D., Givoli, D., Simmonds, J.G.

Izdavač
Kluwer Academic Publishers

Grad
Dordrecht

Godina
2001

Raspon stranica
167-180

ISBN
0-7923-6785-5

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

Sažetak
Shell structures are extremly efficient, thin walled load-carrying components, in the elastic as well as in the inelastic regime. Realistic and efficient computational strategies lately are in rapid development. Such computational strategy for modelling of nonisothermal, highly nonlinear hardening responses in elastoplastic shell analysis has been proposed in this article. Therein, the closest point projection algorithm employing the Reissner-Mindlin type kinematic model, completely formulated in tensor notation, is applied. A consistent elastoplastic tangent modulus ensures high convergence rates in the global iteration approach. The integration algorithm has been implemented into a layered assumed strain isoparametric finite shell element, which is capable of geometrical nonlinearities including finite rotations. Under the assumption of an adiabatic process, the increase of the temperature is analysed during elastoplastic deformation. Finally, numerical examples illustrate robustness and efficiency of the proposed algorithms.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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