Low-velocity impact on sandwich beams with a functionally graded two-dimensional re-entrant triangular auxetic core

Mohsen Hasani-Jalilian, Mehdi Ranjbar-Roeintan, Department of Mechanical Engineering, Kermanshah University of Technology

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Published online on October 15, 2025

Abstract

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, Ahead of Print.
This article presents an innovative approach to fabricating sandwich beams with functionally graded (FG) two-dimensional (2D) re-entrant triangular auxetic cores using a three-dimensional (3D) printer. Three-point bending and drop-weight impact tests are ...