期刊
MATERIALS LETTERS
卷 277, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.matlet.2020.128376
关键词
Mechanical metamaterial; Lattice; Structural; Circular-arc curved beam; Elastic properties
A rationally design of lattice metamaterials composed of circular-arc curved beam elements for independently tailored stiffness in different loading directions is presented. Theoretical models are developed to predict the force-displacement relationship of the proposed structural cells. Lattice metamaterials are manufactured using 3D printing techniques and mechanically tested. The results supported by the finite element method (FEM) show that lattice materials composed of circular-arc curved beam elements exhibit remarkable properties. This work provides the guiding principles to design mechanical metamaterials with controlled stiffness, which presents the promising potentials in biomedical applications. (C) 2020 Published by Elsevier B.V.
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