20.500.12556/RUL-101669 Napovedovanje dobe trajanja dinamično obremenjenih zvarnih spojev Estimating durability of dynamically loaded weld joints V magistrski nalogi smo se ukvarjali z napovedovanjem dobe trajanja dinamicno obremenjenih zvarnih spojev. Naˇs glavni cilj je bil oblikovanje testnih epruvet, ki sluzijo kot referenca za primerjavo razliˇcnih materialov in metod, ki jih uporabljamo za napoved dobe trajanja dinamicno obremenjenih elementov. Preizkuˇsance izbrane oblike smo testirali na razlcnih napetostnih nivojih tako, da smo lahko izrisali Wohlerjeve krivulje za preizkusance iz referencnega in testnega materiala. Rezultate fizicnih preizkusov smo nato primerjali z napovedjo s pomocjo standarda EUROCODE, z metodo geometrijskih napetosti in z metodo, ki je vgrajena v programski paket FEMFAT. This master thesis deals with estimating durability of dynamically loaded welded joints. The main objective was to design a test specimen that would be used for a comparison of different materials and methods for estimating the fatigue life of dynamically loaded welded elements. Designed specimens were tested with different stress amplitudes. On the basis of experimental results W¨ohler curves for both reference and test specimens were modelled. At the end test results were compared to the results calculated using EUROCODE standard, hot spot method and method that is built into the FEMFAT software. lahka gradnja obratovalna trdnost utrujenostna poˇskodba W¨ohlerjeva krivulja metoda konˇcnih elementov EUROCODE metoda geometrijskih napetosti lightweight design against fatigue fatigue damage W¨ohlers curve finite element method EUROCODE hot spot method true false false [M. Muc] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2018-06-24 07:45:42 2018-06-24 07:45:45 2023-10-18 11:43:07 0000-00-00 00:00:00 2018 0 Ljubljana 0 XXVI, 75 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2019-06-22 519.61:621.791.053(043.2) 204604 16139803 1787.pdf 1787.pdf 1 D62EFF11591D6A5B37BE6E595A6DFB90 05ff41a028a500b61c18d4e81428d2ca720dd330de0c68159a787651724a1721 5a1145d0-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=111803 1788.PDF 1788.PDF 1 B7EF780AE7FCABE1A4597F03A3C825E8 57e9029a9ce146c574a0277a54f4bb1dd3d297832e490db04b14e57da3640780 5a25c72f-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=111804 Fakulteta za strojništvo 0 0 0