Pregled bibliografske jedinice broj: 959325
Energy balance in simulations of dynamic localized failure propagation with strain softening
Energy balance in simulations of dynamic localized failure propagation with strain softening // ECCM-ECFD 2018 (6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics)
Glasgow, Ujedinjeno Kraljevstvo, 2018. str. 1-1 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 959325 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Energy balance in simulations of dynamic localized failure propagation with strain softening
Autori
Nikolić, Mijo ; Do, Xuan Nam ; Ibrahimbegovic, Adnan ; Nikolić, Željana
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
ECCM-ECFD 2018 (6th European Conference on Computational Mechanics, 7th European Conference on Computational Fluid Dynamics)
/ - , 2018, 1-1
Skup
6th European Conference on Computational Mechanics (ECCM 2018) ; 7th European Conference on Computational Fluid Dynamics (ECFD 2018)
Mjesto i datum
Glasgow, Ujedinjeno Kraljevstvo, 11.06.2018. - 15.06.2018
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Dynamic localized failure ; Embedded strong discontinuities ; Energy balance
Sažetak
In this work we present the total energy balance in dynamically driven localized failure propagation. The full energy balance is investigated on the well known benchmark prob- lem where pre-notched plate is subjected to edge impulsive load or projectile causing the dynamic crack propagation until failure, which is experimentally shown in [1]. The localized failure in material is represented by embedded strong discontinuity formula- tion exhibiting the jump in the displacement field leading to correct formulation for strain softening response which remains independent on the chosen mesh. For this purpose, we give the results obtained with two different models, both using the embedded strong dis- continuities. The first one is the discrete lattice model, based on Voronoi tessellation and cohesive links with enhanced kinematics [2, 3]. The other one uses constant strain triangle elements equipped with embedded strong discontinuities [4]. The total input work introduced into the system by external loads is monitored in time, while internal energy balance in damage and plasticity softening is maintained by ex- changing the kinetic energy, strain energy, plastic free energy and dissipated energy in time. The role of fracture energy is also explained through the energy balance principles
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo
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
