20.500.12556/RUL-149171 Analiza koncentracij napetosti v plezalni vrvi z metodo končnih elementov Analysis of stress concentrations in climbing ropes using finite element method V laboratoriju za strojne elemente smo izvedli natezne porušitvene teste na novi in rabljeni plezalni vrvi. V programu Abaqus je izdelana simulacija nateznih preizkusov. V vrvi se na stiku z karabinom pojavijo koncentracije napetosti, ki vodijo do porušitve nove vrvi na točki stika. Rabljena vrv ima zaradi degradacije in obrabe na določenih delih znižano nosilnost zato do porušitve pride na točki najmanjše nosilnosti. Faktor koncentracij napetosti je tako manjši od faktorja degradacije na nosilnost vrvi. In the laboratory for mechanical elements, we performed tensile failure tests on new and used climbing ropes. A simulation of tensile tests was created in the Abaqus program. The rope experiences stress concentrations at the point of contact with the carabiner, which lead to the failure of the new rope at the contact point. Due to degradation and wear on certain parts, the used rope has reduced load-bearing capacity, resulting in failure at the point of minimum load capacity. The stress concentration factor is smaller than the degradation factor on the rope’s load capacity. vlaknena vrv simulacija metoda končnih elementov mehanske lastnosti vrvi natezni testi Abaqus fibre rope simulation finite element method mechanical properties tensile tests Abaqus true false false [K. Kusterle] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-09-05 08:31:04 2023-09-05 08:31:06 2023-12-01 14:12:46 0000-00-00 00:00:00 2023 0 Ljubljana 0 XX, 56 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.319:620.172:519.62(043.2) 255803 165939971 29574.pdf 29574.pdf 1 EF018F0324D5820717C38EB8EE3D3F8A 8a9a3fdad0ca9a11f4479278edcb102398afc4a9e96a44c563aa94c6db90039f c83915af-4bb5-11ee-af86-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=173569 Fakulteta za strojništvo 0 0 0