20.500.12556/RUL-146675 The dynamic behaviour of symmetrical laminated nano-composite containing equal numbers of glass and carbon fibre layers Dinamične lastnosti simetrično laminiranih nanokompozitov, ki vključujejo enako število steklenih in ogljikovih vlaken Fibre-reinforced polymer composite has many uses in structural components that required high strength, stiffness, and damping capacity. Cross and quasi-laminated epoxy composites with and without nano Al2O3 were used in this investigation to determine flexural modulus, natural frequency, damping ratio, and mode shapes by using analytical, experimental, and numerical (ANSYS) methods. It was demonstrated that adding 2 % nano Al2O3 improved the flexural modulus and the damping ratio while decreased the natural frequency. Cross number 2 and quasi number 2 had the highest natural frequency for cross and quasi laminate groups which are equal to 23.5 Hz and 20.25 Hz experimentally, respectively. On the other hand, the higher damping ratio was achieved for cross number 1 with nano Al2O3 and quasi number 2 with nano Al2O3 for both cross and quasi laminates, which are equal to 0.707 % and 0.693 %, respectively. The flexural modulus and damping ratio are inversely related to each other. However, the novelty in this article is that by adding two glass plies at the outer surface of quasi group laminate the flexural modulus, natural frequency, and damping ratio are increased simultaneously, as in the configurations quasi number 2 and quasi number 2 with nano Al2O3 in comparison with quasi number 1 and quasi number 1 with nano Al2O3. cross laminate quasi laminate natural frequency damping ratio nanoparts križni laminat kvazi laminat modul elastičnosti pri upogibu lastna frekvenca faktor dušenja nanodelci true false true Angleški jezik Slovenski jezik Članek v reviji 2023-06-06 09:57:54 2023-06-06 09:57:58 2023-06-15 11:19:41 0000-00-00 00:00:00 2023 0 0 Str. 224-234 no. 5/6 Vol. 69 May/Jun. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.3:531.3 0039-2480 10.5545/sv-jme.2022.403 154620163 Mohammed,_Hassan,_Khdir_-The_Dynamic_Behaviour_of_Symmetrical_Laminated_Nano-composite_Containing_Equal_Numbers_of_Glass_and_Carbon_Fibre_Layers.pdf Mohammed,_Hassan,_Khdir_-The_Dynamic_Behaviour_of_Symmetrical_Laminated_Nano-composite_Containing_Equal_Numbers_of_Glass_and_Carbon_Fibre_Layers.pdf 1 7BC0776EFD577529EEC7CF8CB2F400A8 1e07f0f9d722718fc17979b3a8e2ebd1a11cd7ede537036f39158c4dc0c915bc 2800ce90-0440-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=169915 https://www.sv-jme.eu/sl/article/dynamical-behavior-of-symmetrical-laminated-nano-composite-containing-equal-numbers-of-glass-and-carbon-fibers/ 1 914e3205-043f-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=169914 Fakulteta za strojništvo Strojniški vestnik 0 0 0