Naslov
Damage modeling using higher-order finite element formulation

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

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

Izvornik
Proceedings of the 8th International Congress of Croatian Society of Mechanics / Kožar, Ivica ; Bićanić , Nenad ; Jelenić, Gordan ; Čanađija, Marko - Rijeka : Hrvatsko društvo za mehaniku (HDM), 2015, 1-13

ISBN
9789537539214

Skup
International Congress of Croatian Society of Mechanics (8 ; 2015)

Mjesto i datum
Opatija, Hrvatska, 29.09.2015. - 02.10.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
damage ; softening ; C1 continuity finite element ; heterogeneous material

Sažetak
In the presented research, the two dimensional C1 continuity triangular finite element is used for the modeling of the quasi-brittle softening phenomena. The implemented damage model is based on an isotropic damage law applied upon the higher-order stress-strain constitutive relations originating from the full strain gradient theory. Both homogeneous and heterogeneous materials are analyzed, where the material stiffness behavior is introduced in the computational model through the constitutive tensors obtained using the second-order homogenization procedure. Parametric analysis of the model is performed by changing the values of an internal length scale parameter. All the algorithms derived are implemented into the FE software ABAQUS via user subroutines. The verification of the presented computational model is performed on the benchmark example.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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