Naslov
Modeling of damage phenomena using higher-order finite element formulation

Autori
Putar, Filip

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Second Annual PhD Workshop Book of Abstracts / Parunov, J. et al. - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2016, 42-42

ISBN
978-953-7738-41-9

Skup
Second Annual PhD Workshop

Mjesto i datum
Zagreb, Hrvatska, 01.07.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Damage modeling; C1 continuity finite element; Strain gradient theory; Heterogeneous material

Sažetak
It is well-known that damage phenomena cannot be objectively modeled by using the classical continuum theory because the differential equations which describe the deformation process may lose the elliptic characteristic once the damage is initiated. Mathematical description of the model in that case becomes ill-posed and numerical solutions do not converge to a physically meaningful solution. To overcome these problems, most of the regularization techniques developed are based on the improvement of the classical continuum model by its enrichment with the internal length scale parameters in various forms. Among these techniques especially nonlocal theories are known, which have been shown to be the most versatile. One of them is the strain gradient continuum theory, which introduces the nonlocality in the model through additional gradient term in the strain energy density function.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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