期刊
COMPOSITE STRUCTURES
卷 247, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2020.112428
关键词
Bio-inspired design; Surface gradient structure; Periodic layered structure; Impact resistance
资金
- National Natural Science Foundation of China [11672297]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22020200]
With an exquisite design that allows the elastic modulus to decrease in the surface layer and vary periodically inside, the stomatopod dactyl club can easily penetrate a hard and tough conch shell. Inspired by this idea, in this paper, a surface gradient target and a periodic layered target were designed. The failure processes of the two bionic targets and a uniform target under impact were studied with the finite element method (FEM), and the mechanism that allows the bionic designs of elastic modulus to optimize stress distribution and improve com- patibility of deformation to greatly strengthen impact resistance of the targets was revealed.
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