Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 29 - 29

Published: Dec. 25, 2024

The stress distribution within the struts of lattice metamaterials is non-uniform under compressive loads, with concentrations typically occurring at node regions. Inspired by bamboo, this study proposes a type body-centered cubic (BCC) metamaterial tapered prism (BCCT). behavior, deformation modes, mechanical properties, and failure mechanisms BCCT are systematically analyzed using finite element methods validated through compression tests. Parametric analysis conducted to investigate effects key design parameters, including volume fraction, shape parameter, material properties. results reveal that effectively eliminate concentration nodes redistributing toward center struts. This redistribution changes mode from shear band layer collapse, while maintain bending-dominated mechanism compression. properties significantly influenced factor. Furthermore, different fractions materials consistently superior BCC ones, which verifies effectiveness adaptability taper prismatic for potential lightweight applications.

Language: Английский