Numerical characterisation of additively manufactured components

–

Numerical characterisation of additively manufactured components

Giuseppe Mantegna, Davide Tumino, Calogero Orlando, Andrea Alaimo

Abstract. Additive manufacturing (AM) technologies are gaining widespread adoption across multiple engineering sectors due to their ability to create customised components with tailored mechanical properties and reduced material waste. This work presents different innovative Finite Element Method (FEM) models to characterise the behaviour of AM structures. A numerical model is presented to characterise AM porosity defects using the Representative Volume Element (RVE) concept; additionally, different unit cell approaches to study the behaviour of lattice structures are presented. The procedures and methodologies presented offer a range of tools, each with different trade-offs between accuracy and computational cost.

Keywords
Additive Manufacturing, FEM, Lattice

Published online 6/1/2024, 5 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Giuseppe Mantegna, Davide Tumino, Calogero Orlando, Andrea Alaimo, Numerical characterisation of additively manufactured components, Materials Research Proceedings, Vol. 42, pp 188-192, 2024

DOI: https://doi.org/10.21741/9781644903193-41

The article was published as article 41 of the book Aerospace Science and Engineering

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] V. Mohanavel, K. S. A. Ali, K. Ranganathan, J. A. Jeffrey, M. M. Ravikumar, and S. Rajkumar, “The roles and applications of additive manufacturing in the aerospace and automobile sector,” Mater Today Proc, vol. 47, pp. 405–409, 2021. https://doi.org/10.1016/j.matpr.2021.04.596
[2] G. Mantegna et al., “Representative volume element homogenisation approach to characterise additively manufactured porous metals,” Mechanics of Advanced Materials and Structures, vol. 30, no. 5, pp. 1073–1082, 2023. https://doi.org/10.1080/15376494.2022.2124002
[3] X. Cai, A. A. Malcolm, B. S. Wong, and Z. Fan, “Measurement and characterization of porosity in aluminium selective laser melting parts using X-ray CT,” Virtual Phys Prototyp, vol. 10, no. 4, pp. 195–206, 2015. https://doi.org/10.1080/17452759.2015.1112412
[4] R. Gümrük and R. A. W. Mines, “Compressive behaviour of stainless steel micro-lattice structures,” Int J Mech Sci, vol. 68, pp. 125–139, 2013. https://doi.org/10.1016/j.ijmecsci.2013.01.006
[5] E. Ptochos and G. Labeas, “Shear modulus determination of cuboid metallic open-lattice cellular structures by analytical, numerical and homogenisation methods,” Strain, vol. 48, no. 5, pp. 415–429, 2012. https://doi.org/10.1111/j.1475-1305.2012.00837.x
[6] D. Tumino, A. Alaimo, G. Mantegna, C. Orlando, and S. Valvano, “Mechanical properties of BCC lattice cells with waved struts,” International Journal on Interactive Design and Manufacturing (IJIDeM), 2023. https://doi.org/10.1007/s12008-023-01359-9