On modal analysis of phase-field fracture models (CROSBI ID 716224)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jukić, Krešimir ; Jarak, Tomislav ; Tonković, Zdenko ; Lorenzana, Anatolin
engleski
On modal analysis of phase-field fracture models
In this work, the modal response of a phase-field model of a damaged structure is performed and the influence of various phase-field model parameters on the dynamic response is analysed. Instead of analysing hypothetical cracks, here the crack geometries of the damaged body are predicted by a quasi-static crack propagation simulation by means of an adaptive phase-field method, performed prior to the modal analyses. The modal analyses are performed with respect to the damaged configurations obtained during the fracture simulations. The natural frequencies and corresponding mode shapes of a plate modelled as a tree-dimensional body with a crack has been inspected. Various modifications of the phase field fracture model are used in the modal analysis. The influence of element size and length scale are also studied. From the results, the recommendations for performing the modal analysis of phase-field models are drawn.
metoda faznog polja, krhki lom, dinamički odziv, modalna analiza
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Podaci o prilogu
300-320.
2021.
objavljeno
Podaci o matičnoj publikaciji
Podaci o skupu
6th International Congress on Mechanical Models in Structural Engineering (CMMoST 2021)
predavanje
01.12.2021-03.12.2021
Valladolid, Španjolska