Plastic deformation behavior and energy absorption performance of a metamaterial based on auxetic lattices

被引：3

作者：

Garrido, Cesar ^{[1
,4
]}

Pincheira, Gonzalo ^{[2
]}

Valle, Rodrigo ^{[3
]}

Fernandez, Jorge ^{[4
]}

Tuninetti, Victor ^{[5
]}

机构：

[1] Univ Talca, Mech Engn, Sci Engn, Talca, Chile

[2] Univ Talca, Dept Ind Technol, Talca, Chile

[3] Univ Talca, Fac Engn, Engn Syst, Talca, Chile

[4] Univ Bio Bio, Dept Mech Engn, Concepcion, Chile

[5] Univ La Frontera, Dept Mech Engn, Temuco, Chile

来源：

COMPOSITE STRUCTURES | 2024年 / 346卷

关键词：

Composite metamaterial; Auxetic Lattice; Energy absorption; Re-entrant structure; Elasto-plastic behavior; MECHANICAL-PROPERTIES; CELLULAR STRUCTURES; ELASTIC PROPERTIES; FOAM STRUCTURES; POISSONS RATIO; DESIGN; COMPOSITES;

D O I：

10.1016/j.compstruct.2024.118410

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This study focuses on the design, behavior and experimental analysis of a novel metamaterial, consisting of an asymmetric auxetic three-dimensional structure (AATS) infused with polyester resin. Utilizing FDM additive printing, samples were created with customizable responses to compressive loads through varied design parameters. The objective is to surpass traditional material blending by enhancing stiffness and energy absorption. Striking a delicate balance, the AATS energy absorption properties are preserved while leveraging the stiffness of the resin. Despite its compact cubic form, not exceeding 27 mm on each side, this metamaterial showcases amplified characteristics, blending the AATS and polyester resin. The results hint at promising applications across military defense, automotive, aerospace sectors, and even potential replacements for articulated human skeletal components.

引用

页数：13

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