Biomimetic 4D Printing
Event details
| Date | 08.02.2016 |
| Hour | 14:00 › 15:00 |
| Speaker |
Dr. Elisabetta Matsumoto, School of Engineering and Applied Sciences, Harvard University Bio: I am a postdoctoral fellow at the Harvard Paulson School for Engineering and Applied Science in the Applied Mathematics group. I am additionally affiliated with the Harvard MRSEC and Wyss Institute. My research focuses on the coupling between geometric and topological microstructure and emergent physical properties in complex soft matter systems. This includes multiple systems in a wide range of fields, including soft robotics, polymer systems, biological physics, biomedical and tissue engineering, textiles, mechanical metamaterials and auxetics. My other interests include scientific visualization and 3D animation. I am currently working with Prof. L. Mahadevan on anisotropic elasticity in a variety of systems, Prof. Michael Brenner on self assembly of braided structures, and Prof. Jennifer Lewis on 4D printing and programmable matter. Previously, I completed a Postdoctoral Fellowship at the Princeton Center for Theoretical Sciences at Princeton University. In 2011, I received my PhD from the Department of Physics and Astronomy at the University of Pennsylvania supervised by Prof. Randall Kamien. |
| Location | |
| Category | Conferences - Seminars |
The nascent technique of 4D printing has the potential to revolutionize manufacturing in fields ranging from organs-on-a-chip to architecture to soft robotics. By expanding the pallet of 3D printable materials to include the use stimuli responsive inks, 4D printing promises precise control over patterned shape transformations. With the goal of creating a new manufacturing technique, we have recently introduced a biomimetic printing platform that enables the direct control of local anisotropy into both the elastic moduli and the swelling response of the ink.
We have drawn inspiration from nastic plant movements to design a phytomimetic ink and printing process that enables patterned dynamic shape change upon exposure to water, and possibly other external stimuli. Our novel fiber-reinforced hydrogel ink enables local control over anisotropies not only in the elastic moduli, but more importantly in the swelling. Upon hydration, the hydrogel changes shape accord- ing the arbitrarily complex microstructure imparted during the printing process.
To use this process as a design tool, we must solve the inverse problem of prescribing the pattern of anisotropies required to generate a given curved target structure. We show how to do this by constructing a theory of anisotropic plates and shells that can respond to local metric changes induced by anisotropic swelling. A series of experiments corroborate our model by producing a range of target shapes inspired by the morphological diversity of flower petals.
We have drawn inspiration from nastic plant movements to design a phytomimetic ink and printing process that enables patterned dynamic shape change upon exposure to water, and possibly other external stimuli. Our novel fiber-reinforced hydrogel ink enables local control over anisotropies not only in the elastic moduli, but more importantly in the swelling. Upon hydration, the hydrogel changes shape accord- ing the arbitrarily complex microstructure imparted during the printing process.
To use this process as a design tool, we must solve the inverse problem of prescribing the pattern of anisotropies required to generate a given curved target structure. We show how to do this by constructing a theory of anisotropic plates and shells that can respond to local metric changes induced by anisotropic swelling. A series of experiments corroborate our model by producing a range of target shapes inspired by the morphological diversity of flower petals.
Practical information
- Informed public
- Free
- This event is internal
Organizer
- IGM
Contact
- Prof J. Botsis