On the failure resistance of quasi-periodic lattices

SCRIPTA MATERIALIA

卷:156

Article

Glacet, Arthur¹  Rethore, Julien²  Tanguy, Anne¹  Morestin, Fabrice¹ 

[1] Univ Lyon, LaMCoS, INSA Lyon, CNRS UMR 5259, Bat Jacquard,27 Ave Jean Capelle, F-69621 Villeurbanne, France

[2] CNRS UMR, Cent Nantes, Civil & Mech Engn Res Inst GeM, 6183,1 Rue Noe, F-44321 Nantes, France

关键词: Lattice materials;    Quasi-periodic structure;    Failure;    Experiments;    Finite element;   

DOI  :  10.1016/j.scriptamat.2018.07.001

来源: Elsevier

【 摘 要 】

Quasi-periodic materials have been widely studied for their behavior regarding atomic dynamics, photonic, magnetic and electronic properties. They have unique properties inherited from their specific material symmetry. The recent development of additive manufacturing gives the opportunity to produce quasi-periodic structures to benefit from their unique capability. In this paper, quasi-periodic beam lattices are produced and failure experiments are performed. Then, a numerical model is proposed and validated. It is obtained that quasi-periodic Penrose lattices can outperform their periodic counterpart. These results open new ways to design architected materials with enhanced failure energy dissipation capabilities. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free