Bioinspired 4D Printed Tubular/Helicoidal Shape Changing Metacomposites for Programmable Structural Morphing (Adv. Mater. Technol. 2/2025)

Abstract

Shape Changing Metacomposites

Biological structures combine passive shape-changing with force generation through intricate composite and hierarchical architectures. In article number 2400237, A. Le Duigou and co-workers draw inspiration from natural fiber architecture to create a novel concept of thermally active 4D printed tubular metacomposites. The energy density values are encouraging and comparable to shape memory alloys when normalized by stiffness. Finally, a proof of concept for an autonomous solar tracker is presented.