2026-05-29T20:56:58Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/81842023-12-06T01:05:19Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505
Rodríguez Aparicio, Rubén
1834df45-77be-4562-8e4d-73e3517bb64f
600
Alegre Calderón, Jesús Manuel
16
600
0000-0003-3629-2570
Verbeeten, Wilco M.H.
573
600
0000-0001-7026-1642
Lorenzo Bañuelos, Miriam
326
600
0000-0001-5819-853X
Cuesta Segura, Isidoro Iván
135
600
0000-0003-4088-9302
2023-12-05T11:44:27Z
2023-12-05T11:44:27Z
2023-09
2214-8604
http://hdl.handle.net/10259/8184
10.1016/j.addma.2023.103864
Topology optimization for weight reduction of additive manufacturing parts is commonly achieved throughout the creation of lattice structures, typically generated with beams of small size cross-section. In order to carry out accurate simulations of these lattice structures, knowing the mechanical behavior of pillars is required. In this paper, a methodology for determining the mechanical properties of small size pillars printed in PA-12 material, using polymer powder bed fusion (PBF) and in particular the Selective Laser Sintering (SLS) technology, is presented. The effect of defects originated during the manufacturing process on the macroscopic mechanical properties is studied and the mechanisms which influence these properties are analyzed. A methodology for the determination of these properties is proposed, based on a successive correction of the printed nominal diameters according to two approaches; one due to the outer skin of unmelted material and the other due to internal melting defects. Once the material properties are determined, as a function of the cross-section of the lattice pillars, the numerical simulation of lattice-type structures has been carried out and the degree of adjustment of the proposed methodology has been experimentally verified, obtaining good results. This validation provides a reliable method for the simulation of the macroscopic behavior of lattice-type structures with reduced sizes, taking into account the intrinsic defects generated during the printing process.
The authors wish to acknowledge the funding received through the Junta de Castilla y León projects BU-002-P20 and INVESTUN/22/BU/0003 co-financed with FEDER funds, and the projects MR5W.P3 (C17. I01. P01. S21) and MR4W.P2 co-financed by JCyL and MICINN and the NextGenerationEU/PRTR funds.
application/pdf
eng
Elsevier
Additive Manufacturing. 2023, V. 78, 103864
https://doi.org/10.1016/j.addma.2023.103864
info:eu-repo/grantAgreement/Junta de Castilla y León//BU-002-P20//Optimización de las técnicas de post-procesado para la mejora de propiedades mecánicas y de fatiga en componentes realizados mediante fabricación aditiva/
info:eu-repo/grantAgreement/Junta de Castilla y León//INVESTUN%2F22%2FBU%2F0003//Prevención de Riesgos Laborales en la Instalación Vertical de Mangueras para el Cuerpo de Bomberos de Burgos/
info:eu-repo/grantAgreement/Junta de Castilla y León//MR5WP3//Planes complementarios de I+D+i, Tecnologías, materiales y procesos para producción a pequeña escala de portadores de Hidrógeno Renovable (Metano y Amoniaco) para aprovechamiento distribuido en CyL/
info:eu-repo/grantAgreement/Junta de Castilla y León//MR4WP2//Plan Complementario de Materiales Avanzados: subproyecto GIE/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
PA-12
Selective Laser Sintering
Microstructural defects
Finite Element Analysis
Lattice structure
Ingeniería civil
Materiales de construcción
Civil engineering
Building materials
Methodology to predict mechanical properties of PA-12 lattice structures manufactured by powder bed fusion
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Additive Manufacturing
78
103864
THUMBNAIL
Rodriguez-am_2023.pdf.jpg
Rodriguez-am_2023.pdf.jpg
IM Thumbnail
image/jpeg
4933
https://riubu.ubu.es/bitstream/10259/8184/4/Rodriguez-am_2023.pdf.jpg
a75bcd5685b7ddd25b722c31441ccde3
MD5
4
LICENSE
license.txt
license.txt
text/plain; charset=utf-8
999
https://riubu.ubu.es/bitstream/10259/8184/3/license.txt
b295bcbce42e2caabeb0c623d3860c06
MD5
3
CC-LICENSE
license_rdf
license_rdf
application/rdf+xml; charset=utf-8
805
https://riubu.ubu.es/bitstream/10259/8184/2/license_rdf
4460e5956bc1d1639be9ae6146a50347
MD5
2
ORIGINAL
Rodriguez-am_2023.pdf
Rodriguez-am_2023.pdf
application/pdf
4414746
https://riubu.ubu.es/bitstream/10259/8184/1/Rodriguez-am_2023.pdf
b67ffaeae87267e2b216e61a0c208b2c
MD5
1
10259/8184
oai:riubu.ubu.es:10259/8184
2023-12-06 02:05:19.728
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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