Experimental and Numerical Evaluation of Mechanical Properties of 3D-Printed Stainless Steel 316L Lattice Structures
Source abstract
Abstract
Abstract Additive manufacturing (AM), and in particular selective laser melting (SLM) technology, allows to produce structural components made of lattice structures. These kinds of structures have received a lot of research attention over recent years due to their capacity to generate easy-to-manufacture and lightweight components with enhanced mechanical properties. Despite a large amount of work available in the literature, the prediction of the mechanical behavior of lattice structures is still an open issue for researchers. Numerical simulations can help to better understand the mechanical behavior of such a kind of structure without undergoing long and expensive experimental campaigns. In this work, we compare numerical and experimental results of a uniaxial tensile test for stainless steel 316L octet-truss lattice specimen. Numerical simulations are based on both the nominal as-designed geometry and the as-build geometry obtained through the analysis of µ-CT images. We find that the use of the as-build geometry is fundamental for an accurate prediction of the mechanical behavior of lattice structures.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Additive Manufacturing Materials and Processes · Additive Manufacturing and 3D Printing Technologies · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (16)
Show source-provided references
1. ASTM International, ASTM Standard F2792. Standard Terminology for Additive Manufacturing Technologies, West Conshohocken, 2012
2. I. Gibson, D. Rosene, and B. Stucker, Additive Manufacturing Technologies, Springer, New York, 2010.10.1007/978-1-4419-1120-9 ↗
3. J.L. Bartlette, and X. Li, An Overview of Residual Stresses in Metal Powder Bed Fusion, Add. Manuf., 2019, 27, p 131–149.
4. H. Yeung, B. Lane, M. Donmez, J. Foxe, and J. Neira, Implementation of Advanced Laser Control Strategies for Powder Bed Fusion Systems, Proc. Manuf., 2018, 26, p 871–879.
5. H. Yeung, B. Lanee, and J. Fox, Part Geometry and Conduction-Based Laser Power Control for Powder Bed Fusion Additive Manufacturing, Add. Manuf., 2019, 30, p 100844.
6. D. Herzog, V. Seyda, E. Wyciske, and C. Emmelmann, Additive Manufacturing of Metals, Acta Mater., 2016, 117, p 371–392.10.1016/j.actamat.2016.07.019 ↗
7. O. Al-Ketan, R. Rowshane, and R.K. Abu Al-Rub, Topology-Mechanical Property Relationship of 3D Printed Struts, Skeletal, and Sheet Based Periodic Metallic Cellular Materials, Add. Manuf., 2018, 19, p 167–183.
8. C. Qiu, N. Adkinse, and M. Attalleh, Microstructure and Tensile Properties of Selectively Laser-Melted and of HIPed Laser-Melted Ti–6Al–4V, Mater. Sci. Eng. A, 2013, 578, p 230–239.10.1016/j.msea.2013.04.099 ↗
9. R. Ganeriwala, M. Strantza, W. King, B. Clausen, T. Phan, L. Levine, D. Browne, and N. Hodge, Evaluation of a Thermomechanical Model for Prediction of Residual Stress During Laser Powder Bed Fusion of Ti–6Al–4V, Add. Manuf., 2019, 27, p 489–502.
10. M. Carraturo, J. Jomo, S. Kollmannsberger, A. Reali, F. Auricchio, and R. Ernst, Modeling and Experimental Validation of an Immersed Thermo-Mechanical Part-Scale Analysis for Laser Powder Bed Fusion Processes, Add. Manuf., 2020, 36, p 101498.
11. L. Parry, I. Ashcroft, and R. Wildman, Geometrical Effects on Residual Stress in Selective Laser Melting, Add. Manuf., 2019, 25, p 166–175.
12. N. Kurshunova, J. Jomo, G. Lékó, D. Reznik, P. Balázs, and S. Kollmannsberger, Image-Based Material Characterization of Complex Microarchitectured Additively Manufactured Structures, Comput. Math. Appl., 2020, 80, p 2462–2480.10.1016/j.camwa.2020.07.018 ↗
13. M. Kästner, U. Gebhardt, J.K.K.U. Hufenbach, M. Berner, and S. Holtzhausen, Virtual Testing on Geometricallz Imperfect Additivelz Manufactured Lattice Structures, II International Conference on Simulation for Additive Manufactuing (Sim_AM19), Pavia, 2019.
14. S. Arabnejad, and D. Pasini, Mechanical Properties of Lattice Materials Via Asymptotic Homogenization and Comparison with Alternative Homogenization Methods, Int. J. Mech. Sci., 2013, 77, p 249–262.10.1016/j.ijmecsci.2013.10.003 ↗
15. N. Korshunova, G. Alaimo, S. Hosseini, M. Carraturo, A. Reali, J. Niiranen, F. Auricchio, E. Rank, and S. Kollmannsberger, Image-Based Numerical Characterization of Tensile Behavior of Octet-Truss Structures and its Experimental Validation, Add. Manuf.
16. L. Liu, P. Kamm, F. García-Moreno, J. Banhart, and D. Pasini, Elastic and Failure Response of Imperfect Three-Dimensional Metallic Lattices: The Role of Geometric Defects Induced by Selective Laser Melting, J. Mech. Phys. Solids, 2017, 107, p 160–184.10.1016/j.jmps.2017.07.003 ↗