Naslov
Parameter identification in dynamic crack propagation

Autori
Stanić, Andjelka ; Nikolić, Mijo ; Friedman, Noemi ; Matthies, Hermann

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

Izvornik
ECCOMAS MSF 2021 - 5th International Conference on Multi-scale Computational Methods for Solids and Fluids / Ibrahimbegović, Adnan ; Nikolić, Mijo - Split : Faculty of Civil Engineering, University of Sarajevo / Ibrahimbegovic, Adnan ; Nikolić, Mijo - , 2021, 93-95

ISBN
978-9958-638-66-4

Skup
5th International Conference on Multi-Scale Computational Methods for Solids and Fluids (ECCOMAS MSF 2021)

Mjesto i datum
Split, Hrvatska, 30.06.2021. - 02.07.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
parameter identification ; dynamic crack propagation

Sažetak
The subject of our research work is the identification of unknown parameters in a numerical model, that enables simulation of crack propagation in a structural element subjected to dynamic loads. In order to describe a crack formation and opening in quasi brittle 2d solid we use the embedded strong discontinuity method. It provides mesh-independent solution since the fracture dissipation energy is associated with the discontinuity and does not depend on the finite element size. Usually, we do not possess all the necessary data available to carry out the numerical simulation of an experiment. Therefore, the stochastic Bayesian inverse method is applied to identify the input parameters, that can not be measured directly – such as the fracture energy which dissipates when cracks propagate through the model domain.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA