20.500.12556/DKUM-97564 High-cycle fatigue of tri- and tetra-anti-chiral auxetic structures: Experimental and numerical investigation The investigation of the fatigue behaviour of two chiral auxetic cellular structures made of aluminium alloy 5083-H111 is presented in this study. Experimental and numerical tests were conducted under force control at different stress amplitudes in the high-cycle fatigue (HCF) regime. Based on the results, S–N curves were constructed, and the fatigue life of two auxetic geometries was determined. The numerical study was done using an elasto-plastic material model and stress-life approach to assess their fatigue life. The results showed that the tri-anti-chiral structure had a higher fatigue resistance compared to the tetra-anti-chiral structure. A good correlation was achieved between the numerical and experimental results, both in fatigue life predictions and in crack initiation regions. Additionally, a parametric study was conducted to assess the impact of modifying the node-strut junction radius on fatigue life. chiral auxetic structures fatigue behaviour experimental testing computational analysis kiralne avksetične strukture utrujanje eksperimentalno preizkušanje računalniška analiza true false true Elsevier Angleški jezik Slovenski jezik https://www.sciencedirect.com/science/article/pii/S2238785426004916?via%3Dihub Članek v reviji 2026-03-19 15:12:23 2026-03-19 15:12:24 2026-03-20 03:10:51 0000-00-00 00:00:00 2026 0 0 str. 6663-6672 Vol. 41 March/April 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-02-05 2026-02-28 2026-03-03 539.2:519.6 271398403 10.1016/j.jmrt.2026.02.241 2214-0697 1-s2.0-S2238785426004916-main.pdf 1-s2.0-S2238785426004916-main.pdf 1 0EEF62FEC3FE2EEFD939F5F953743DD7 a1d3325560ef639191f25c257b3b025d8ef506823c56d3db9921789a8d34898c e145857c-239e-11f1-9193-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=204662 https://www.sciencedirect.com/science/article/pii/S2238785426004916?via%3Dihub 0 e742a9ea-239e-11f1-9193-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=204663 Fakulteta za strojništvo 0 0 0