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Efficient modelling of nonlinear hardening responses for elastoplastic shell analyses (CROSBI ID 465937)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Sorić, Jurica ; Tonković, Zdenko ; Montag, Ulrich Efficient modelling of nonlinear hardening responses for elastoplastic shell analyses // Proceedings of the 2nd Congress of Croatian Society of Mechanics / Marović, P. ; Sorić, J. ; Vranković, N. (ur.). Hrvatsko društvo za mehaniku, Zagreb, 1997. str. 69-76-x

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

Povezanost rada

Strojarstvo