Naslov
Discrete elastic parameters for lattice fracture model with embedded discontinuities

Autori
Čarija, Jadran ; Nikolić, Mijo ; Marenić, Eduard

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

Izvornik
ECCOMAS Congress 2022, 8th European Congress on Computational Methods in Applied Sciences and Engineering / - , 2022, 1-1

Skup
ECCOMAS Congress 2022, The 8th European Congress on Computational Methods in Applied Sciences and Engineering

Mjesto i datum
Oslo, Norveška, 05.06.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lattice model ; elastic uniformity ; fracture

Sažetak
This work presents a lattice fracture model [1-3] with a choice of parameters that lead to correct elastic continuum response. This choice of elastic parameters is important for post peak softening behaviour of the model, where correct stiffness of the model influence fracture propagation. The procedure for the computation of geometric parameters in a lattice fracture model of this type can match the global stiffness correctly and it is applicable in heterogeneous materials under quasi-static regime. We show the procedure for choosing the correct elastic parameters which is based on Voronoi domain discretization of points randomly positioned in the domain. Lattice elements are zero-size elements that can match the global stiffness, but it can also be elastically homogeneous for various Poisson coefficients. Numerical examples show the capabilities of the model for simulation of the pre-peak and post-peak behaviour of fracturing materials.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA