Naslov
Modeling of damage phenomenon using strain gradient based finite elements

Autori
Putar, Filip ; Sorić, Jurica ; Lesičar Tomislav ; Tonković, Zdenko

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

Izvornik
Special workshop Multiscale modeling of heterogeneous structures / - , 2016

Skup
Special workshop Multiscale modeling of heterogeneous structures

Mjesto i datum
Dubrovnik, Hrvatska, 21.09.2016. - 23.09.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

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

Sažetak
In this contribution, the two dimensional C1 continuity triangular finite element is extended to the modeling of damage and strain localization phenomena. The element is based on the strain gradient continuum theory which incorporates additional higher-order term in the strain energy density function necessary for the description of material nonlocality. The isotropic law is used for the reduction of the elastic stiffness properties. Linear elastic material behavior is considered, where the linear and exponential evolution laws of quasi-brittle damage are employed. The damage variable is calculated as a function of the highest equivalent strain value reached in the integration point throughout entire deformation history. The verification of the presented computational strategy is made on two benchmark examples.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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