Pregled bibliografske jedinice broj: 894524
Lattice model for failure based on embedded strong discontinuities in dynamic framework
Lattice model for failure based on embedded strong discontinuities in dynamic framework // Computational Plasticity XIV, Fundamentals and Applications / Oñate, E. ; Owen, D.R.J ; .Peric, D. ; Chiumenti, M. (ur.).
Barcelona: International Center for Numerical Methods in Engineering (CIMNE), 2017. str. 568-575 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 894524 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Lattice model for failure based on embedded strong
discontinuities in dynamic framework
Autori
Nikolic, Mijo ; Cesic, Jakov ; Ibrahimbegovic, Adnan ; Nikolic, Zeljana
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Computational Plasticity XIV, Fundamentals and Applications
/ Oñate, E. ; Owen, D.R.J ; .Peric, D. ; Chiumenti, M. - Barcelona : International Center for Numerical Methods in Engineering (CIMNE), 2017, 568-575
ISBN
978-84-946909-6-9
Skup
Proceedings of the XIV International Conference on Computational Plasticity - Fundamentals and Applications
Mjesto i datum
Barcelona, Španjolska, 05.09.2017. - 07.09.2017
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Localized failure ; Lattice model ; Embedded strong discontinuities ; Dynamics
Sažetak
Identifying the failure of materials and structures is still a challenging task and there is no unique approach or model to tackle this problem. Complexities that arise in failure modelling are numerous, starting from mesh dependency for softening to various numerical difficulties and instabilities, tracking algorithms, multiple cracking with crack interactions etc. Failure in the dynamic framework is even more challenging bringing inertial effects, crack branching etc. In this paper, lattice model for dynamic failure is presented. The final goal is to simulate crack initiation and propagation in 2D brittle and quasi-brittle structures exposed to dynamic environment. The strength of the lattice models is in their successful representation of failure mechanisms. The presented model is based on a triangular lattice of Timoshenko beams which act as cohesive links between the Voronoi cells used to compute beam cross sections. The embedded strong discontinuities in axial and transversal beam directions serve for representation of failure mechanisms in modes I and II, while mass and inertial effects are included into lattice network.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
HRZZ-IP-2014-09-2319 - Razvoj numeričkih modela armirano-betonskih i kamenih zidanih konstrukcija izloženih potresnom opterećenju zasnovanih na diskretnim pukotinama (SeismoNuMod) (Nikolić, Željana, HRZZ ) ( CroRIS)
Ustanove:
Fakultet građevinarstva, arhitekture i geodezije, Split
