Multiphase lattice metamaterials with enhanced mechanical performance
نویسندگان
چکیده
Abstract We describe here the quasi-static crushing behavior of novel classes multiphase (hybrid) hierarchical lattice metamaterials. The first class is represented by a hybrid architecture combining honeycomb with polyurethane foam filler, while second structure produced injecting an alginate hydrogel into voids metamaterial. Twelve different auxetic (i.e. negative Poisson’s ratio) and non-auxetic metamaterial architectures have been 3D printed subjected to edgewise compression loading. A parametric numerical analysis has also performed using validated finite element models identify best configurations. Configurations filled showed significant stabilization deformation mechanism during large compression. use metamaterials designs internal slots round in ribs rigid semi-reticulated feature however increases terms specific stiffness, mean force, strength energy absorption. enhancement particularly evident for
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ژورنال
عنوان ژورنال: Smart Materials and Structures
سال: 2021
ISSN: ['0964-1726', '1361-665X']
DOI: https://doi.org/10.1088/1361-665x/abd15d