Discrete elastic parameters for lattice fracture model with embedded discontinuities (CROSBI ID 730965)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Čarija, Jadran ; Nikolić, Mijo ; Marenić, Eduard
engleski
Discrete elastic parameters for lattice fracture model with embedded discontinuities
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.
lattice model ; elastic uniformity ; fracture
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Podaci o prilogu
1-1.
2022.
objavljeno
Podaci o matičnoj publikaciji
ECCOMAS Congress 2022, 8th European Congress on Computational Methods in Applied Sciences and Engineering
Podaci o skupu
ECCOMAS Congress 2022, The 8th European Congress on Computational Methods in Applied Sciences and Engineering
predavanje
05.06.2022-05.06.2022
Oslo, Norveška