Abstract
The freedom in geometry given by additive manufacturing allows to produce cellular materials, also called lattice structures, with unit cells and mesoscale features that are impossible to obtain with traditional manufacturing techniques. The geometric modeling of lattice structures still presents issues such as robustness and automation, but, with a novel modeling approach based on subdivision surface algorithm, these troubles were limited. Furthermore, the subdivision method smooths surfaces, avoiding sharp edges at nodal points and increasing performances in fatigue properties. The aim of this work is twofold; a. The subdivision surface method is validated through fatigue tests on specimen additively manufactured by selective laser melting technology in SS316L stainless steel; dynamic tests were carried out on two types of lattice structures based on cubic cell: one obtained with a traditional modeling method, one obtained with a subdivision surface approach. b. Additional tests on bulk cylindrical samples, allowed to propose a preliminary model that describes the fatigue behaviour of additively manufactured lattices as a function of the bulk material properties, considering the shape and scale effects coming from stress concentration factor, increased area, surface roughness and porosity of the part. Results show that the subdivision surface approach improves the fatigue life of lattice structures, as expected. More, the lattices have a worse fatigue life compared to the bulk samples due to the scale and shape effects, that results in a higher sensibility to surface and internal defects related to the manufacturing process.
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References
Holmström, J., Partanen, J., Tuomi, J., Walter, M.: Rapid manufacturing in the spare parts supply chain. J. Manuf. Technol. Manag. 21, 687–697 (2010). https://doi.org/10.1108/17410381011063996
Wohlers, T., Campbell, I., Diegel, O., Kowen, J., Caffrey, T.: Wohlers report 2019 (2019)
Gibson, L.J., Ashby, M.F.: Cellular Solids. Cambridge University Press, Cambridge (1997). https://doi.org/10.1017/CBO9781139878326
Savio, G., Rosso, S., Meneghello, R., Concheri, G.: Geometric modeling of cellular materials for additive manufacturing in biomedical field: a review. Appl. Bionics Biomech. 2018, 1–14 (2018). https://doi.org/10.1155/2018/1654782
Van Hooreweder, B., Kruth, J.-P.: Advanced fatigue analysis of metal lattice structures produced by selective laser melting. CIRP Ann. 66, 221–224 (2017). https://doi.org/10.1016/J.CIRP.2017.04.130
SASAM: Additive Manufacturing: SASAM Standardisation Roadmap (2015)
AMSC: Standardization Roadmap for Additive Manufacturing (version 1.0) (2017)
Yadollahi, A., Shamsaei, N.: Additive manufacturing of fatigue resistant materials: challenges and opportunities. Int. J. Fatigue 98, 14–31 (2017). https://doi.org/10.1016/J.IJFATIGUE.2017.01.001
Greitemeier, D., Dalle Donne, C., Syassen, F., Eufinger, J., Melz, T.: Effect of surface roughness on fatigue performance of additive manufactured Ti–6Al–4V. Mater. Sci. Technol. 32, 629–634 (2016). https://doi.org/10.1179/1743284715Y.0000000053
Masuo, H., Tanaka, Y., Morokoshi, S., Yagura, H., Uchida, T., Yamamoto, Y., Murakami, Y.: Influence of defects, surface roughness and HIP on the fatigue strength of Ti-6Al-4V manufactured by additive manufacturing. Int. J. Fatigue 117, 163–179 (2018). https://doi.org/10.1016/J.IJFATIGUE.2018.07.020
Croccolo, D., De Agostinis, M., Fini, S., Olmi, G., Vranic, A., Ciric-Kostic, S.: Influence of the build orientation on the fatigue strength of EOS maraging steel produced by additive metal machine. Fatigue Fract. Eng. Mater. Struct. 39, 637–647 (2016). https://doi.org/10.1111/ffe.12395
Bača, A., Konečná, R., Kunz, L.: Influence of build direction on the fatigue behaviour of Ti6Al4V alloy produced by direct metal laser sintering. Mater. Today Proc. 3, 921–924 (2016). https://doi.org/10.1016/J.MATPR.2016.03.021
Wycisk, E., Solbach, A., Siddique, S., Herzog, D., Walther, F., Emmelmann, C.: Effects of defects in laser additive manufactured Ti-6Al-4V on fatigue properties. Phys. Procedia 56, 371–378 (2014). https://doi.org/10.1016/J.PHPRO.2014.08.120
Savio, G., Meneghello, R., Concheri, G.: Geometric modeling of lattice structures for additive manufacturing. Rapid Prototyp. J. 24, 351–360 (2018). https://doi.org/10.1108/RPJ-07-2016-0122
ASTM: ASTM E606/E606M - 2012 – Standard Test Method for Strain-Controlled Fatigue Testing (2012)
Catmull, E., Clark, J.: Recursively generated B-spline surfaces on arbitrary topological meshes. Comput. Des. 10, 350–355 (1978). https://doi.org/10.1016/0010-4485(78)90110-0
Elangeswaran, C., Cutolo, A., Muralidharan, G.K., de Formanoir, C., Berto, F., Vanmeensel, K., Van Hooreweder, B.: Effect of post-treatments on the fatigue behaviour of 316L stainless steel manufactured by laser powder bed fusion. Int. J. Fatigue 123, 31–39 (2019). https://doi.org/10.1016/J.IJFATIGUE.2019.01.013
ISO International Organization for Standardization: ISO 4287:1997 - Geometrical Product Specifications (GPS) – Surface texture: Profile method – Terms, definitions and surface texture parameters (1997)
ISO International Organization for Standardization: ISO 4288:1996 - Geometrical Product Specifications (GPS) – Surface texture: Profile method – Rules and procedures for the assessment of surface texture (1996)
Savio, G., Rosso, S., Curtarello, A., Meneghello, R., Concheri, G.: Implications of modeling approaches on the fatigue behavior of cellular solids. Addit. Manuf. 25, 50–58 (2019). https://doi.org/10.1016/j.addma.2018.10.047
Renishaw: Data sheets - Additive manufacturing - SS 316L-0407. https://www.renishaw.com/en/data-sheets-additive-manufacturing–17862
ISO International Organization for Standardization: ISO/DIS 12107 – Metallic materials – Fatigue testing – Statistical planning and analysis of data (2017)
Van Hooreweder, B., Apers, Y., Lietaert, K., Kruth, J.P.: Improving the fatigue performance of porous metallic biomaterials produced by selective laser melting. Acta Biomater. 47, 193–202 (2017). https://doi.org/10.1016/j.actbio.2016.10.005
Yadroitsev, I., Yadroitsava, I., Bertrand, P., Smurov, I.: Factor analysis of selective laser melting process parameters and geometrical characteristics of synthesized single tracks. Rapid Prototyp. J. 18, 201–208 (2012). https://doi.org/10.1108/13552541211218117
Zorin, D.: Subdivision zoo. Subdiv. Model. Animat. 65–104 (2000)
Murakami, Y.: Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions. Elsevier, Boston (2002)
Savio, G., Curtarello, A., Rosso, S., Meneghello, R., Concheri, G.: Homogenization driven design of lightweight structures for additive manufacturing. Int. J. Interact. Des. Manuf. (2019). https://doi.org/10.1007/s12008-019-00543-0
Acknowledgments
This work was partially funded by Fondazione Cassa Di Risparmio di Padova e Rovigo (CARIPARO) and by Regione Friuli Venezia Giulia “FESR D23D18000160007” to Tesolin S.p.A.
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Rosso, S., Meneghello, R., Concheri, G., Savio, G. (2020). Scale and Shape Effects on the Fatigue Behaviour of Additively Manufactured SS316L Structures: A Preliminary Study. In: Rizzi, C., Andrisano, A.O., Leali, F., Gherardini, F., Pini, F., Vergnano, A. (eds) Design Tools and Methods in Industrial Engineering. ADM 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-31154-4_75
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