文献类型：期刊文献

英文题名：Longitudinal wave propagation behavior and dimension effect of origami-inspired metamaterials prepared by laser powder bed fusion

作者：Chen, Ke[1];Wan, Haoran[2];Chen, Hongyu[3];Fang, Xiang[2];Lu, Tiwen[4];Wang, Yonggang[2];Liu, Yang[2];Kosiba, Konrad[5]

机构：[1]Ningbo Univ, Affiliated Hosp 1, Ningbo 315010, Peoples R China;[2]Ningbo Univ, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315211, Peoples R China;[3]Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Jiangsu Prov Engn Res Ctr Laser Addit Mfg High Per, Yudao St 29, Nanjing 210016, Peoples R China;[4]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[5]Leibniz Inst Solid State & Mat Res Dresden, Inst Mat Chem, 12 Helmholtzstr 20, D-01069 Dresden, Germany

年份：2025

卷号：252

外文期刊名：MATERIALS & DESIGN

收录：;EI(收录号：20251118042728);WOS:【SCI-EXPANDED(收录号:WOS:001446238600001)】；

基金：This work was financially supported by the Zhejiang Provincial Natural Science Foundation of China (No. LQ23E050010) , Natural Sci-ence Foundation of Ningbo (No. 2024J046) .

语种：英文

外文关键词：Laser powder bed fusion; Origami inspired structure; Quasi-zero stiffness; Nonlinear vibration isolator; Size effect

摘要：Origami principles have garnered significant attention in science and engineering due to their unique deformation behaviors and resultant mechanical properties. This study introduces an innovative elastic metamaterial inspired by Miura-origami tubes, fabricated using laser powder bed fusion (LPBF), a prevalent additive manufacturing technique. The metamaterial's unit cell consists of a diamond-shaped frame and a pair of orthogonal springs, displaying quasi-zero stiffness through the interaction of lateral and longitudinal springs, which balances internal pressure and tension. The transmission and dispersion of longitudinal waves in these metamaterials, with varying structural parameters, were systematically investigated. The findings demonstrate that the Miura-origami inspired metamaterial can generate ultra-wide band gaps for low-frequency longitudinal waves (500 Hz to 2500 Hz). It effectively converts longitudinal waves into other energy forms via internal vibration mode transformations. Structural parameters critically impact the metamaterial's mechanical performance and manufacturing quality. Optimal parameters for LPBF fabrication were identified through rigorous experiments and simulations. These origami-inspired elastic metamaterials show substantial promise for vibration mitigation in civil, medical, mechanical, and aerospace engineering applications.