Enabling hierarchical motion in 4D printed structures by means of the temperature-memory effect in polymers: experimental and computational aspects

A presentation by Giulia Scalet, Assistant Professor, DICAr, University of Pavia.

4D printing is a disruptive additive manufacturing paradigm that utilises active materials to produce customized structures capable of changing their shape, properties, and functionalities over time (the 4th dimension) under the application of proper stimuli.

This talk presents an overview of our recent research efforts to achieve complex sequential and hierarchical shape‐shifting motion in 4D printed structures. Such peculiar response is studied on commercial photopolymers featuring, on the basis of the inherent broad glass transition, the so‐called “temperature‐memory effect” (TME).

Experimental and computational results will be presented and discussed. The powerful application to the design of auxetic metamaterials and self-closing devices will be demonstrated.

This work is a joint collaboration with S. Pandini, N. Inverardi, D. Battini, C. Pasini, and F. Bignotti (UniBS), S. Marconi and F. Auricchio (UniPV).

About Giulia Scalet
Dr Giulia Scalet is Assistant Professor at the University of Pavia (Italy). She received the PhD (2014) in Civil and Environmental Engineering from University of Bologna. She has been postdoc at Ecole Polytechnique and University of Pavia and visited several institutions (as TexasA&MUniversity,RWTH Aachen University). She won the “2020 Young Researchers Prize” in Engineering by the 2003 Scientific Research Group, the “2014 GIMC Best PhD Thesis in Computational Solid Mechanics” Award, the “Best Graduated Women of the Engineering and Chemistry Faculties of the University of Bologna” Prize (2011). She published 29 peer-reviewed papers, one book chapter, and several conference proceedings.

About The University of Pavia
The University of Pavia was funded in 1361, one of the oldest in Europe, and has hosted several distinguished scientists, among the others, Girolamo Cardano (1501-1576, polymath), Alessandro Volta (1745-1827, physicist) and Camillo Golgi (1843-1926, medical scientist). The University offers a wide range of courses in humanities and mathematics, social and experimental sciences, engineering and medicine. Together, these courses enroll over 20000 undergraduate and graduate students.

Giulia Scalet will be speaking at the 2021 edition of the 4D Printing & Meta Materials Conference.

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