Article Dans Une Revue International Journal of Impact Engineering Année : 2025

Effect of filling pattern on the response of 316L additively manufactured architected structures subjected to dynamic indentation

Camille Buros
Philippe Viot
Paul J. Hazell
  • Fonction : Auteur
Hongxu Wang
  • Fonction : Auteur

Résumé

The out-of-plane compressive behaviour of three types of architected structures subjected to quasi-static and dynamic indentation was investigated in this paper. The effects of filling a pattern - with three unit-cell patterns and three levels of cell wall waviness - and velocities are characterized through experiments at low (10 mm/min) and high-speed testing (around 300 m/s). The metallic architected structures of interest are extruded in two-dimensions through Directed Energy Deposition – Laser Powder (DED-LP) technology. This work is focused on the energy absorption capacities of architected structures when indented. In quasi-static, the results showed no effect of the cell walls waviness on the energy absorption capacity of the structures. However, different deformation mechanisms were observed depending on the unit-cell pattern, showing an effect of unit-cell pattern on energy absorption capacities. On the contrary, in dynamic enhanced absorption capacities were observed with higher level of cell walls waviness. Finally, the cross-sectional view of the structures after indentation were analyzed to observe the failure mechanisms.

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Dates et versions

hal-04999900 , version 1 (21-03-2025)

Identifiants

Citer

Camille Buros, Philippe Viot, Paul J. Hazell, Hongxu Wang, Julie Lartigau. Effect of filling pattern on the response of 316L additively manufactured architected structures subjected to dynamic indentation. International Journal of Impact Engineering, 2025, 201, pp.105265. ⟨10.1016/j.ijimpeng.2025.105265⟩. ⟨hal-04999900⟩
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