Talk by Jakub Cehula

The next seminar “Modelling of materials – theory, model reduction and efficient numerical methods” will take place next Monday (October 14, 2019) in the room K2 from 9:00 till 10:30. The talk will be given by Jakub Cehula. Please see the details below.

Speaker: Jakub Cehula

Title: Deformations of light activated shape memory polymers

Abstract: Light activated shape memory polymers (LASMPs) are smart materials with the ability of remembering a deformed state (temporary shape) due to exposure to ultraviolet (UV) light and returning to the permanent (original) shape by the exposure to UV light with a different wavelength.

In the lecture, we will show the solutions of two specific boundary values problems, namely inflation of a hollow cylinder and inflation of a hollow ball made of LASMPs. Both problems are solved for large deformations.
Next, we will present the modification to MERLIN2, software for modeling large deformations of nonrigid origami-like structures. The original software package MERLIN2 works with a reduced representation of origami-like structures and can be used to model nonlinear dynamics of such systems. We have modified the software in such way that it is applicable to origami-like structures made of LASMPs. To demonstrate the robustness of the modified MERLIN2.LUX code we will simulate shape memory behavior of complicated origami-like structures such as Kresling pattern.