Energy Absorption of Additively Manufactured Porous Metals with Disordered Cells

Koichi Kitazono; Shiyue Guo; Ke Zhu; Takuya Hamaguchi; Yuta Fujimori

doi:10.4028/www.scientific.net/MSF.1016.183

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Energy Absorption of Additively Manufactured Porous Metals with Disordered Cells
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HomeMaterials Science ForumMaterials Science Forum Vol. 1016Energy Absorption of Additively Manufactured...

Energy Absorption of Additively Manufactured Porous Metals with Disordered Cells

Abstract:

Lightweight porous metals are focused on as energy absorbing materials for automobiles. Open-cell porous metals were manufactured through additive manufacturing process. Their cell structures were designed based on Voronoi diagrams using a commercial 3D-CAD software. Both ordered and disordered cell structures with the same porosities were successfully designed in this study. Compression tests and explicit finite element analysis revealed heterogeneous deformation behaviors in ordered porous metals. On the other hand, the porous metals with disordered cell structure showed relatively isotropic and uniform deformation, which is suitable as energy absorbing materials. Controlling the disordered cell structure designed by 3D-Voronoi diagram enables to develop the advanced porous metals having various mechanical properties.

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Periodical:

Materials Science Forum (Volume 1016)

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183-187

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https://doi.org/10.4028/www.scientific.net/MSF.1016.183

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Online since:

January 2021

Authors:

Koichi Kitazono*, Shiyue Guo, Ke Zhu, Takuya Hamaguchi, Yuta Fujimori

Keywords:

Cellular Solid, Finite Element Analysis, Mechanical Properties, Porous Metal, Voronoi Diagram

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