Efficient modelling of nonlinear hardening responses for elastoplastic shell analyses (CROSBI ID 465937)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Sorić, Jurica ; Tonković, Zdenko ; Montag, Ulrich
engleski
Efficient modelling of nonlinear hardening responses for elastoplastic shell analyses
An efficient computational strategy for modelling of highly nonlinear hardening responses in elastoplastic analysis of shell structures has been proposed. A 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 is found to be unsymmetrical. By using its symmetrized form the quadratic convergence rate in Newton Raphson iteration approach is exhibited, as the numerical examples illustrate. The integration algorithm has been implemented into a layered assumed strain isoparametric finite element, which also permits simulation of geometrical nonlinearity including finite rotations.
Elastoplastic shell analysis; Reissner-Mindlin type kinematic model; highly nonlinear hardening responses; consistent linearisation
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Podaci o prilogu
69-76-x.
1997.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 2nd Congress of Croatian Society of Mechanics
Marović, P. ; Sorić, J. ; Vranković, N.
Hrvatsko društvo za mehaniku, Zagreb
Podaci o skupu
The 2nd Congress of Croatian Society of Mechanics
predavanje
18.09.1997-20.09.1997
Supetar, Hrvatska