3D打印
数字光处理
超材料
材料科学
3d打印机
3d打印
计算机科学
计算机图形学(图像)
声学
工程制图
工程类
机械工程
复合材料
人工智能
光电子学
制造工程
物理
投影机
作者
Zhendong Li,Xinwei Li,Jun Wei Chua,Chong Heng Lim,Xiang Yu,Zhonggang Wang,Wei Zhai
标识
DOI:10.1080/17452759.2023.2166851
摘要
It is of significance, but still remains a key challenge, to attain excellent sound-absorbing and mechanical properties in a material simultaneously. To overcome this challenge, herein, novel multifunctional microlattice metamaterials based on a hollow truss-plate hybrid design are proposed and then realised by digital light processing 3D printing. Quasi-perfect sound absorption (α > 0.999) and broadband half-absorption have been measured. The sound-absorbing capacity is verified to be based on the designed cascaded Helmholtz-like resonators. Physical mechanisms behind the absorptive behaviours are fully revealed by numerical analyses. The present microlattices also display superior modulus and strength to the conventional cellular materials and modified microlattices, which is attributed to their near-membrane stress state of the plate architecture. The mechanically robust behaviour of the present microlattices in turn derives from the hollow struts. This work represents an effective approach for the design and engineering of multifunctional metamaterials through 3D printing.
科研通智能强力驱动
Strongly Powered by AbleSci AI