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Experimental and numerical investigation on lattice structures fabricated by selective laser melting process under quasi-static and dynamic loadings.

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Title: Experimental and numerical investigation on lattice structures fabricated by selective laser melting process under quasi-static and dynamic loadings.
Authors: Saremian, Reza1 (AUTHOR), Badrossamay, Mohsen1 (AUTHOR) mohsen.badrossamay@cc.iut.ac.ir, Foroozmehr, Ehsan1 (AUTHOR), Kadkhodaei, Mahmoud1 (AUTHOR), Forooghi, Foroozan2 (AUTHOR)
Source: International Journal of Advanced Manufacturing Technology. Jan2021, Vol. 112 Issue 9/10, p2815-2836. 22p. 14 Color Photographs, 4 Black and White Photographs, 4 Charts, 9 Graphs.
Subjects: Quasistatic processes, Dynamic loads, Finite element method, Strain rate, Stress-strain curves, Honeycomb structures
Abstract: Lattice structures are a class of cellular materials with greater control over the mechanical properties, relative to other common cellular materials like foams and honeycomb structures. In this paper, three lattice structures including Kelvin, Rhombic dodecahedron, and truncated cuboctahedron with identical geometric dimensions in quasi-static and dynamic loadings were investigated to identify the proper lattice structure for impact resistance applications. This study consisted of two experimental and numerical sections. In the experimental section, the lattice structures were fabricated using the selective laser melting (SLM) method from the AISI 316L material. The dynamic tests of the lattice structures were performed by the split Hopkinson pressure bar (SHPB) with a strain rate of 765 s−1. In the numerical section, the modeling was carried out by the finite element method (FEM) to predict the properties of the lattice structures. The results of the experimental tests showed that the selected lattice structures had a high strength to weight ratio and considerable impact resistance; so, they could be suitable for use in lightweight and impact-resistant structures. In addition, the modeling results revealed a good agreement with the experimental results. Finally, the specific absorbed energy of the Rhombic dodecahedron lattice structure in the quasi-static compression test and with the 50% strain was 7% and 15% higher than that of Kelvin and truncated cuboctahedron lattice structures, respectively. While, with evaluation of the dynamic results, the truncated cuboctahedron lattice structure had higher area under the specific stress-strain curve in comparison to the other two structures. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Experimental and numerical investigation on lattice structures fabricated by selective laser melting process under quasi-static and dynamic loadings.
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  Data: <searchLink fieldCode="AR" term="%22Saremian%2C+Reza%22">Saremian, Reza</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Badrossamay%2C+Mohsen%22">Badrossamay, Mohsen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mohsen.badrossamay@cc.iut.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Foroozmehr%2C+Ehsan%22">Foroozmehr, Ehsan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kadkhodaei%2C+Mahmoud%22">Kadkhodaei, Mahmoud</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Forooghi%2C+Foroozan%22">Forooghi, Foroozan</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Jan2021, Vol. 112 Issue 9/10, p2815-2836. 22p. 14 Color Photographs, 4 Black and White Photographs, 4 Charts, 9 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Quasistatic+processes%22">Quasistatic processes</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+loads%22">Dynamic loads</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Strain+rate%22">Strain rate</searchLink><br /><searchLink fieldCode="DE" term="%22Stress-strain+curves%22">Stress-strain curves</searchLink><br /><searchLink fieldCode="DE" term="%22Honeycomb+structures%22">Honeycomb structures</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Lattice structures are a class of cellular materials with greater control over the mechanical properties, relative to other common cellular materials like foams and honeycomb structures. In this paper, three lattice structures including Kelvin, Rhombic dodecahedron, and truncated cuboctahedron with identical geometric dimensions in quasi-static and dynamic loadings were investigated to identify the proper lattice structure for impact resistance applications. This study consisted of two experimental and numerical sections. In the experimental section, the lattice structures were fabricated using the selective laser melting (SLM) method from the AISI 316L material. The dynamic tests of the lattice structures were performed by the split Hopkinson pressure bar (SHPB) with a strain rate of 765 s−1. In the numerical section, the modeling was carried out by the finite element method (FEM) to predict the properties of the lattice structures. The results of the experimental tests showed that the selected lattice structures had a high strength to weight ratio and considerable impact resistance; so, they could be suitable for use in lightweight and impact-resistant structures. In addition, the modeling results revealed a good agreement with the experimental results. Finally, the specific absorbed energy of the Rhombic dodecahedron lattice structure in the quasi-static compression test and with the 50% strain was 7% and 15% higher than that of Kelvin and truncated cuboctahedron lattice structures, respectively. While, with evaluation of the dynamic results, the truncated cuboctahedron lattice structure had higher area under the specific stress-strain curve in comparison to the other two structures. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00170-020-06112-0
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      – Code: eng
        Text: English
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        StartPage: 2815
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      – SubjectFull: Quasistatic processes
        Type: general
      – SubjectFull: Dynamic loads
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      – SubjectFull: Finite element method
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      – SubjectFull: Strain rate
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      – SubjectFull: Stress-strain curves
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      – SubjectFull: Honeycomb structures
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      – TitleFull: Experimental and numerical investigation on lattice structures fabricated by selective laser melting process under quasi-static and dynamic loadings.
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            NameFull: Saremian, Reza
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            NameFull: Badrossamay, Mohsen
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            NameFull: Foroozmehr, Ehsan
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              M: 01
              Text: Jan2021
              Type: published
              Y: 2021
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