20.500.12556/RUL-114377 Fracture of quasi-brittle solids by continuum and discrete-crack damage models and embedded discontinuity formulation We derive a finite element formulation for modelling fracture in 2d quasi-brittle solids. The kinematics of isoparametric quadrilateral is enriched by strong discontinuity in displacements in order to capture the discrete crack opening and sliding. To describe both the bulk and crack-surface dissipative phenomena induced by the crack propagation, a combination of continuum and discrete damage models is used. The continuum damage model describes dissipation in the bulk, which mainly occurs ahead of the crack front. The discrete damage model includes two uncoupled rigid-damage cohesive laws to deal with fracture energy release due to crack propagation in modes I and II. The numerical solution strategy is based on a local-global operator-split procedure and incorporates a crack-tracking algorithm for enforcing continuity of the crack path. Numerical examples illustrate very satisfying performance of the derived formulation in terms of mesh independency and robustness. The sensitivity of results on material parameters for mixed mode fracture is also illustrated. SE(T) civil engineering crack propagation modelling quasi brittle materials embedded discontinuity finite elements gradbeništvo modeliranje širjenja razpok kvazi krhki materiali končni elementi z vgrajeno strogo nezveznostjo true true true Angleški jezik Slovenski jezik Znanstveno delo 2020-02-24 13:19:30 2020-02-24 13:24:00 2022-08-26 03:50:09 0000-00-00 00:00:00 2020 0 0 Str. 1-26 15. marec/106924 Letn. 227 2020 0000-00-00 PostprintKoncna VTisku NiDoloceno 2019-09-21 2020-02-03 2020-02-14 2022-03-03 624.04 1873-7315 10.1016/j.engfracmech.2020.106924 9088609 9089633 bbrank@fgg.uni-lj.si-R3-final_(1).pdf bbrank@fgg.uni-lj.si-R3-final_(1).pdf 1 45EA113F66A2A1C136D6143C612BCDA7 1fa266a4c4969a14df208c6e602d128a497e7d59ff52ab7eff720c3c905ddad5 343b3fb0-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=126543 https://doi.org/10.1016/j.engfracmech.2020.106924 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=126544 Fakulteta za gradbeništvo in geodezijo 0 0 0