FEM simulation on impact resistance of surface gradient and periodic layered bionic composites

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 des...

Full description

Saved in:
Bibliographic Details
Published inComposite structures Vol. 247; p. 112428
Main Authors Wei, Zhiquan, Xu, Xianghong
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2020
Subjects
Bio-inspired design
Impact resistance
Periodic layered structure
Surface gradient structure
Impact resistance
Bio-inspired design
Surface gradient structure
Periodic layered structure
Online AccessGet full text

Cover

More Information
Summary: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 compatibility of deformation to greatly strengthen impact resistance of the targets was revealed.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2020.112428