20.500.12556/RUL-113842 Prediction of static and low-cycle durability of porous cellular structures with positive and negative Poisson's ratios The static and low-cycle durability of three planar cellular structures, hexagonal, auxetic and auxetic-chiral, have been compared. The three structures have the same critical cross-section and are made from an aluminium alloy Al7075-T651. The reference region of each structure is represented by a matrix of nine elementary shaped cells (3 rows by 3 columns). For each structure static and low-cycle fatigue experiments at different loading amplitudes were made. Numerical simulations were then performed for the same boundary conditions to predict the static and low-cycle fatigue durability. For this purpose a continuum damage mechanics approach with element removal was used in explicit dynamic simulations. The results of static simulations were also checked using the eXtended Finite Element Method (XFEM). All the numerical simulations were carried out using Abaqus. Good agreement was observed between the simulated and measured results for each of the three cellular structures. low-cycle fatigue element removal XFEM aluminium alloy auxetic honeycomb strain-energy density malo-ciklično utrujanje odstranitev elementov aluminijeve zlitine oksetični materiali satovje gostota energije specifične deformacije true false true Angleški jezik Slovenski jezik Članek v reviji 2020-02-06 13:58:29 2020-02-06 13:58:30 2022-08-26 03:47:43 0000-00-00 00:00:00 2020 0 0 Str. 1-13 Vol. 106 (102479) Apr. 2020 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.2:539.4(045) 0167-8442 10.1016/j.tafmec.2020.102479 22988310 RAZ_Tomazincic_Dejan_2020.pdf RAZ_Tomazincic_Dejan_2020.pdf 1 619A99155EE7C3C46EBBB83EFC736064 516736a78abc11841fab813f2afe17cae557b0974d302694eebdecb8f7ec6cf2 2a657e2a-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125953 https://www.sciencedirect.com/science/article/pii/S0167844219307323 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125952 Fakulteta za strojništvo 0 0 0