from experimental design to analytic simulation.
The combined employ of the additive manufacturing approach with shape memory polymers (SMPs) is one of the possible strategies towards 4D-printing, in particular when aiming at the realization of highly effective shape shifting objects. SMPs are in fact active systems, capable of being temporarily fixed in a deformed configuration and to revert to the pristine shape upon application of a thermal stimulus. In addition, this response may be finely tuned by a proper combination of the thermo-mechanical history and of the material macromolecular architecture.
Continue reading “Exploiting the temperature-memory effect in 3D printed auxetic structures”
A duo presentation by Frederic Demoly, Associate Professor at Université Bourgogne Franche-Comté, UTBM and Jean-Claude Andre, CNRS.
Over the past decades, the combination of technical/scientific advances in additive manufacturing (AM) and smart materials (SMs) domains has enabled the booming development of a new interdisciplinary converging research area: 4D printing.
Continue reading “The status, barriers, challenges and future of 4D printing in design and engineering”
Researchers have created a 3D printer-compatible hydrogel that is mechanically tough and able to repeatedly change shape in response to water temperature. The scientists have demonstrated the technology by 3D-printing an autonomous water valve, …. Continue reading “New “4D-printing” material can change shape in hot water”