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18 papers · 1 filter
Development and Comparison of Model-Based and Data-Driven Approaches for the Prediction of the Mechanical Properties of Lattice Structures
Chiara Pasini, Oscar Ramponi, Stefano Pandini +2
Lattice structures have great potential for several application fields ranging from medical and tissue engineering to aeronautical one. Their development is further speeded up by t…
Finite strain continuum phenomenological model describing the shape-memory effects in multi-phase semi-crystalline networks
Matteo Arricca, Nicoletta Inverardi, Stefano Pandini +3
Thermally-driven semi-crystalline polymer networks are capable to achieve both the one-way shape-memory effect and two-way shape-memory effect under stress and stress-free conditio…
Phenomenological modeling of the stress-free two-way shape-memory effect in semi-crystalline networks: Formulation, numerical simulation, and experimental validation
Matteo Arricca, Nicoletta Inverardi, Stefano Pandini +4
Polymers exhibiting the stress-free two-way shape-memory effect (SME) represent an appealing solution to achieve self-standing reversible actuation that is a fundamental feature re…
Solvent-triggered shape change in gradient-based 4D printed bilayers: case study on semi-crystalline polymer networks
Lorenzo Bonetti, Aron Cobianchi, Daniele Natali +4
We propose an approach to 4D print solvent-triggered, gradient-based bilayers made of semi-crystalline crosslinked polymer networks. Out-of-plane bending is obtained after immersio…
Work and Activation in a Nematic Polymer Network Ribbon
H. Singh, K. Suryanarayanan, E. G. Virga
We study spontaneous deformations of a ribbon made of nematic polymer networks and activated under the action of a mechanical load. We show that when such ribbons are activated app…
A confined rod: mean field theory for hard rod-like particles
Jamie M. Taylor, Thomas G. Fai, Epifanio G. Virga +2
In this paper, we model the configurations of a system of hard rods by viewing each rod in a cell formed by its neighbors. By minimizing the free energy in the model and performing…