Reusable 3D-Printed Thermoplastic Polyurethane Honeycombs for Mechanical Energy Absorption.

ABSTRACT: In this study, we investigate the mechanical energy absorption performance of reusable 3D-printed honeycomb structures fabricated using fused deposition modeling with three thermoplastic polyurethane variants: TPU 70A, TPU 85A, and TPU 95A. Prior to manufacturing, the mechanical properties of the TPU filaments were analyzed as a function of printing temperature to optimize tensile strength and layer adhesion. Four honeycomb configurations, including hexagonal and circular cell geometries, both with and without a 30° twist, were subjected to out-of-plane compression testing to evaluate energy absorption efficiency, specific energy absorption, and crushing load efficiency. The highest energy absorption efficiency, 47%, was achieved by the hexagonal honeycomb structure fabricated from TPU 95A

SUBMITTER: Bustihan A 

PROVIDER: S-EPMC12656569 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature