Smart 3D prints
Date
2026
Authors
Swanson, Chase
Drews, Abigail
Tekumalla, Sravya
Yu, Bosco
Journal Title
Journal ISSN
Volume Title
Publisher
University of Victoria
Abstract
This project investigates the mechanical behavior of 3D printed lattice structures fabricated using thermally activated shape memory polymers (SMPs). Architected cellular materials offer tunable mechanical properties through geometric design, enabling lightweight structures with tailored stiffness and energy absorption. In this study, a re-entrant lattice geometry was designed and manufactured using additive manufacturing techniques with an SMP filament. The material was first characterized through tensile and compression testing to determine key mechanical properties relevant to lattice performance.
Following fabrication, the lattice was programmed through controlled deformation and thermal activation to demonstrate shape memory behavior and geometric recovery. Mechanical testing was conducted to compare structural stiffness and energy absorption between the programmed re-entrant configuration and the deformed honeycomb configuration. Results highlight the influence of lattice geometry on global mechanical response and demonstrate the potential of thermally reconfigurable SMP lattice structures for adaptive mechanical systems and lightweight structural applications.
Description
Keywords
lattice, shape memory polymer, re-entrant, honeycomb, Jamie Cassels Undergraduate Research Awards (JCURA)