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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 prod...

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Autores principales: Neuhäuserová, Michaela, Koudelka, Petr, Fíla, Tomáš, Falta, Jan, Rada, Václav, Šleichrt, Jan, Zlámal, Petr, Mauko, Anja, Jiroušek, Ondřej
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838664/
https://www.ncbi.nlm.nih.gov/pubmed/35160887
http://dx.doi.org/10.3390/ma15030941
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author Neuhäuserová, Michaela
Koudelka, Petr
Fíla, Tomáš
Falta, Jan
Rada, Václav
Šleichrt, Jan
Zlámal, Petr
Mauko, Anja
Jiroušek, Ondřej
author_facet Neuhäuserová, Michaela
Koudelka, Petr
Fíla, Tomáš
Falta, Jan
Rada, Václav
Šleichrt, Jan
Zlámal, Petr
Mauko, Anja
Jiroušek, Ondřej
author_sort Neuhäuserová, Michaela
collection PubMed
description 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 [Formula: see text] , 45 [Formula: see text] , and 90 [Formula: see text]. 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.
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spelling pubmed-88386642022-02-13 Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel Neuhäuserová, Michaela Koudelka, Petr Fíla, Tomáš Falta, Jan Rada, Václav Šleichrt, Jan Zlámal, Petr Mauko, Anja Jiroušek, Ondřej Materials (Basel) Article 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 [Formula: see text] , 45 [Formula: see text] , and 90 [Formula: see text]. 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. MDPI 2022-01-26 /pmc/articles/PMC8838664/ /pubmed/35160887 http://dx.doi.org/10.3390/ma15030941 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Neuhäuserová, Michaela
Koudelka, Petr
Fíla, Tomáš
Falta, Jan
Rada, Václav
Šleichrt, Jan
Zlámal, Petr
Mauko, Anja
Jiroušek, Ondřej
Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title_full Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title_fullStr Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title_full_unstemmed Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title_short Strain Rate-Dependent Compressive Properties of Bulk Cylindrical 3D-Printed Samples from 316L Stainless Steel
title_sort strain rate-dependent compressive properties of bulk cylindrical 3d-printed samples from 316l stainless steel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8838664/
https://www.ncbi.nlm.nih.gov/pubmed/35160887
http://dx.doi.org/10.3390/ma15030941
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