Naslov
On Anisotropic Formulations of Multiplicative Finite Strain Plasticity. Theoretical and Numerical Aspects

Autori
Sansour, Carlo ; Karšaj, Igor

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

Izvornik
Proceedings of International Symposium on Plasticity 2006 / Khan - Halifax, 2006

Skup
International Symposium on Plasticity 2006

Mjesto i datum
Halifax, Kanada, 17.06.2006. - 22.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
anisotropic plasticity; orthotropic yield function; multiplicative inelasticity; finite strains

Sažetak
Two possible formulations of anisotropic large strain multiplicative inelasticity are considered. In the first one, is treated as a material-like tensor resulting in a formulation which is non-invariant with respect to finite rotations superimposed on . The free energy function is formulated in terms of the elastic strain measure together with structural tensors defined at the reference configuration. In a second formulation, invariant with respect to rotations superimposed on , the free energy function is defined using the elastic strain measure together with modified structural tensors. The modification is due to a mixed-variant transformation of the material structural tensors under the action of . Such a transformation insures the mentioned invariance. The interrelation of the two different formulations is discussed and numerical examples of anisotropic large strain deformations are presented.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA