20.500.12556/RUL-185905 Modeliranje udarnega preizkusa za sendvič kompozit Impact Test modeling of Sandwich Composite Structures V diplomski nalogi smo raziskali obnašanje sendvič kompozitne strukture, sestavljene iz laminatov z ogljikovimi vlakni in aluminijastega satovja pri nizkoenergijskem udarcu. V programskem okolju Abaqus je bil razvit numerični model z uporabo eksplicitne dinamične analize. Posebna pozornost je bila namenjena modeliranju lepilnega sloja med posameznimi komponentami. Primerjani so bili različni pristopi modeliranja lepilnega sloja, vključno s togo povezavo, kohezivnimi elementi in kohezivnim kontaktom. Za validacijo numeričnega modela so bili izvedeni eksperimentalni preizkusi. Rezultati so pokazali dobro ujemanje med simulacijami in meritvami ter potrdili ustreznost kohezivnega kontakta za modeliranje udarnega preizkusa pri obravnavani strukturi. Analizirani so bili tudi odzivi materiala, porazdelitev napetosti in mehanizmi poškodb. A behaviour of a sandwich composite consisting of carbon fibre reinforced composite skin and an aluminium honeycomb core under low-velocity impact loading were investigated within the scope of thesis. A numerical model was developed in Abaqus using explicit dynamic analysis. Different approaches for modelling the adhesive layer, including tie constraints, cohesive elements and cohesive contact, were evaluated and compared. Experimental impact tests were performed to validate the model. The results showed good agreement between simulations and measurements and confirmed the suitability of the cohesive contact approach for the analysed structure. Furthermore, stress distribution, deformation behaviour and damage mechanisms were analysed. sendvič kompoziti laminat z ogljikovimi vlakni aluminijasto satovje Abaqus metoda končnih elementov udarni preizkus sandwich composite carbon fibre reinforced composite aluminium honeycomb Abaqus finite element method impact test true false false [M. Juriševič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-08-22 08:31:45 2026-08-22 08:31:48 2026-08-25 12:53:34 0000-00-00 00:00:00 2026 0 Ljubljana 0 43 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 62-752:678.061:519.6(043.2) 288196 288738563 48490.pdf 48490.pdf 1 2C07DDAA401109F1E62B5C3464A6472D a7bc47d82d89f3c1b15e2b193662868ecae233bf16ec571d6b75ad7b9d03512e c1ba374e-9df2-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=244912 Fakulteta za strojništvo 0 0 0