20.500.12556/DKUM-92194 Strain rate-dependent compressive properties of bulk cylindrical 3D-printed samples from 316L stainless steel The main aim of the study was to analyse the strain rate sensitivity of the compressive deformation response in bulk 3D-printed samples from 316L stainless steel according to the printing orientation. The laser powder bed fusion (LPBF) method of metal additive manufacturing was utilised for the production of the samples with three different printing orientations: 0◦ , 45◦ , and 90◦ . The specimens were experimentally investigated during uni-axial quasi-static and dynamic loading. A split Hopkinson pressure bar (SHPB) apparatus was used for the dynamic experiments. The experiments were observed using a high-resolution (quasi-static loading) or a high-speed visible-light camera and a high-speed thermographic camera (dynamic loading) to allow for the quantitative and qualitative analysis of the deformation processes. Digital image correlation (DIC) software was used for the evaluation of displacement fields. To assess the deformation behaviour of the 3D-printed bulk samples and strain rate related properties, an analysis of the true stress–true strain diagrams from quasi-static and dynamic experiments as well as the thermograms captured during the dynamic loading was performed. The results revealed a strong strain rate effect on the mechanical response of the investigated material. Furthermore, a dependency of the strain-rate sensitivity on the printing orientation was identified. 3D printing laser powder bed fusion 316L stainless steel printing direction split Hopkinson pressure bar 3D tiskanje lasersko spajanje slojev praškastega materiala nerjaveče jeklo 316L smer tiskanja true false true MDPI AG Angleški jezik Slovenski jezik https://www.mdpi.com/journal/materials © 2022 by the authors Članek v reviji 2025-03-20 08:58:45 2025-03-20 08:58:49 2025-03-21 03:10:50 0000-00-00 00:00:00 2022 0 0 15 str. iss. 3 (941) Vol. 15 Jan. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2021-12-21 2022-01-17 2022-01-26 539.3:669.2/.8 98577667 10.3390/ma15030941 1996-1944 materials-15-00941.pdf materials-15-00941.pdf 1 185A7407989EF4B0205028357468111D 8c5702c8228683a67b65c2bf72104c65689b2667c370f88f844d43594b9bc562 880ec305-0561-11f0-9be3-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189503 https://www.mdpi.com/1996-1944/15/3/941 0 8dc2a660-0561-11f0-9be3-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189504 Fakulteta za strojništvo 0 0 0