20.500.12556/RUL-120988 Modeling fracture in elasto-plastic solids by embedded-discontinuity stress-hybrid finite element formulation The Hellinger-Reissner principle is applied to derive a hybrid-mixed quadrilateral finite element with embedded-discontinuity in displacements, which can model a discrete crack (interface) within the element, and its sliding (and opening). The chosen material models are elasto-plasticity with hardening for the bulk, and traction-separation plasticity with softening for the interface. The latter model describes localized material failure and relates cohesion degradation with the fracture energy. The fulfillment of the inelastic relations at the bulk’s integration points is performed by a stress-driven update algorithm. The stress and embedded-discontinuity kinematic parameters are condensed on the element level, allowing for an efficient implementation. civil engineering structures 2D solid elasto-plasticity embedded-discontinuity fracture modelling softening-plasticity stress-hybrid quadrilateral plasticity Hellinger-Reissner gradbeništvo konstrukcije plastičnost Hellinger-Reissner modeliranje odpovedi materiala vgrajena neveznost true false true Angleški jezik Slovenski jezik Članek v reviji 2020-09-28 13:16:14 2020-09-28 13:16:17 2023-07-06 03:47:15 0000-00-00 00:00:00 2022 0 0 Str. 677–693 no. 5 Vol. 29 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.07:004 1537-6494 10.1080/15376494.2020.1786755 23001859 Modeling_fracture_in_elasto_plastic_solids_by_embedded_discontinuity_stress_hybrid_finite_element_formulation.pdf Modeling_fracture_in_elasto_plastic_solids_by_embedded_discontinuity_stress_hybrid_finite_element_formulation.pdf 1 608D6D9F9238D389647379AF793CB00A 03dc7763c62089f04cfb97caf60ec50908312d431563bc9bdb4a3da3e4f7699b b9e1cf45-1b35-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=171061 https://www.tandfonline.com/doi/full/10.1080/15376494.2020.1786755 0 88ec3871-1b35-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=171060 Fakulteta za gradbeništvo in geodezijo 0 0 0