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On the Scale-Transition in Multiscale Modeling of Ductile Damage


Lesičar, T.; Sorić J.; Tonković Z.
On the Scale-Transition in Multiscale Modeling of Ductile Damage // Proceedings of the 16th International Conference on Fracture and Damage Mechanics / Mariano, P. M. ; Baragetti, S. ; Casavola, M. ; Pappalettere, C. ; Aliabadi, F. M. H. (ur.).
Florence: Trans Tech Publications, 2017. str. 226-230 doi:10.4028/www.scientific.net/KEM.754.381 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
On the Scale-Transition in Multiscale Modeling of Ductile Damage

Autori
Lesičar, T. ; Sorić J. ; Tonković Z.

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

Izvornik
Proceedings of the 16th International Conference on Fracture and Damage Mechanics / Mariano, P. M. ; Baragetti, S. ; Casavola, M. ; Pappalettere, C. ; Aliabadi, F. M. H. - Florence : Trans Tech Publications, 2017, 226-230

Skup
Advances in Fracture and Damage Mechanics XVI

Mjesto i datum
Firenca, Italija, 18.-20. 07. 2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Heterogeneous materials, nonlocal ductile damage, computational homogenization, periodic boundary conditions

Sažetak
The standard numerical methods cannot adequately capture damage response of ductile heterogeneous materials, since they are unable to encompass the governing microstructural mechanisms. This issue is resolved by the multiscale approach, where the coarse scale problem incorporates behavior at the lower scales. In this paper, a multiscale scheme is employed for scaling of ductile damage occurring at the microstructural level to the macrolevel. A nonlocal implicit damage model is applied on the RVE, while a scale transition is performed by means of the first-order homogenization scheme. The influence of the boundary conditions used at the microscale on the macroscale response, as well as physical consistency of the RVE mechanical behavior are tested. It has been shown that displacement boundary conditions inhibit development of the softening band inside of the RVE and induce artificial material stiffness. The derived algorithms are embedded into the finite element software ABAQUS.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Projekt / tema
120-1201910-1812 - Numeričko modeliranje procesa deformiranja bioloških tkiva (Jurica Sorić, )
120-1201910-1906 - Modeliranje oštećenja i sigurnost konstrukcija (Zdenko Tonković, )
HRZZ-IP-2013-11-2516 - Višeskalno numeričko modeliranje deformiranja materijala od makro do nanorazine (Jurica Sorić, )

Ustanove
Fakultet strojarstva i brodogradnje, Zagreb

Citiraj ovu publikaciju

Lesičar, T.; Sorić J.; Tonković Z.
On the Scale-Transition in Multiscale Modeling of Ductile Damage // Proceedings of the 16th International Conference on Fracture and Damage Mechanics / Mariano, P. M. ; Baragetti, S. ; Casavola, M. ; Pappalettere, C. ; Aliabadi, F. M. H. (ur.).
Florence: Trans Tech Publications, 2017. str. 226-230 doi:10.4028/www.scientific.net/KEM.754.381 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Lesičar, T., Sorić J. & Tonković Z. (2017) On the Scale-Transition in Multiscale Modeling of Ductile Damage. U: Mariano, P., Baragetti, S., Casavola, M., Pappalettere, C. & Aliabadi, F. (ur.)Proceedings of the 16th International Conference on Fracture and Damage Mechanics doi:10.4028/www.scientific.net/KEM.754.381.
@article{article, year = {2017}, pages = {226-230}, DOI = {10.4028/www.scientific.net/KEM.754.381}, keywords = {heterogeneous materials, nonlocal ductile damage, computational homogenization, periodic boundary conditions}, doi = {10.4028/www.scientific.net/KEM.754.381}, title = {On the Scale-Transition in Multiscale Modeling of Ductile Damage}, keyword = {heterogeneous materials, nonlocal ductile damage, computational homogenization, periodic boundary conditions}, publisher = {Trans Tech Publications}, publisherplace = {Firenca, Italija} }

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