20.500.12556/RUL-149407 Upogibna in tlačna togost slojevite plošče z origami sredico Flexural and Compressive Stiffness of a Sandwich Panel with an Origami Core Slojevite plošče z origami sredico se v inženirski praksi vse več uporabljajo zaradi velikega razmerja med nosilnostjo in težo, majhne porabe gradiva in posledično nižje cene. V tem delu smo iz papirja večje gostote zasnovali različne plošče s sredico oblikovano v Miura vzorcu, ki je origami, znan po svoji togosti in kompaktnosti. Pri vsaki različici slojevite plošče smo spreminjali geometrijo osnovne celice Miura vzorca ter njegovo usmerjenost glede na obremenitev. Na teh vzorcih smo zvedli eksperimentalno analizo togosti s pomočjo tri točkovnega upogiba ter tlačnega preizkusa. Ugotovili smo, da imajo največjo upogibno in tudi tlačno togost slojevite plošče s kompaktnejšim vzorcem sredice ter raziskali različne načine deformacij pri posamezni obliki sredice. Sandwich panels with an origami core are increasingly being used in engineering applications due to their high strength-to-weight ratio, low material consumption and consequently lower costs. In this thesis, we used higher density paper to design various panels with a Miura patterned folded core, which is known for its rigidity and compactness. For each version of the sandwich panel, we changed the geometry of the Miura pattern unit cell and its direction regarding to stress. We conducted an experimental analysis of rigidity using three-point bending and compression tests on these samples. We found that sandwich panels with a denser core pattern have the highest bending and compression rigidity and we explored different ways of deformation for each core shape. origami Miura teselacija zgibana sredica sendvič plošče upogibni preizkus tlačni preizkus eksperimentalna analiza origami Miura tessellation folded core sandwich panels flexural test compressive test experimental analysis true false false [G. Terzer] Slovenski jezik Angleški jezik Zaključna naloga 2023-09-07 08:31:01 2023-09-07 08:31:02 2023-11-07 13:50:09 0000-00-00 00:00:00 2023 0 Ljubljana 0 XII, 39 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.174/.173:624.072.1:676.2(043.2) 256023 171176195 30046.pdf 30046.pdf 1 85DAAA41BFE8542DDE709424172FC305 daaf88049dfb56d38c8930a72ab05a161ab9f87a58033ac72bf11b28ebd09ba6 1ceb8a90-4d48-11ee-9934-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=173848 Fakulteta za strojništvo 0 0 0