Naslov
Lattice element method and its applications

Autori
Nikolić, Mijo ; Ibrahimbegovic, Adnan

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

Izvornik
Proceedings of the 4th International Conference on Multi-scale Computational Methods for Solids and Fluids / Ibrahimbegovic, A. ; Dolarević, S. ; Džaferović, E. ; Hrasnica, M. ; Bjelonja, I. ; Zlatar, M. ; Hanjalić, K - Sarajevo : Građevinski fakultet Univerziteta u Sarajevu, 2019, 244-245

ISBN
978-9958-638-57-2

Skup
4th International Conference on Multi-scale Computational Methods for Solids and Fluids (ECCOMAS-MSF-2019)

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 18.09.2019. - 20.09.2019

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Fracture mechanics ; Lattice element method

Sažetak
Lattice element method (LEM) is developed as a class of discrete element method (DEM), where structure is represented as an assembly of one dimensional elements (Figure 1). Many various models for initiation and propagation of multiple fractures were constructed from this idea. The scope of the method is wide, including failure and fracturing of the various materials in statics or dynamics, multiphysics with volumetric fluid structure interaction such as porous media, thermodynamics etc. The main distinction between the solvers in lattice element method is important. Namely, one type of solvers include lattice element removal which is computed by sequentially linear analysis mimicking the nonlinear response. The other one is the true nonlinear analysis solved by incremental iterative procedures such as Newton method. The latter usually suffers from negative stiffness terms and divergence of the algorithm. The remedy for this problem lies in the technology of embedded strong discontinuities coupled with lattice elements

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

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