The 2023 edition of the advanced course on Modeling of Localized Inelastic Deformation, given by Milan Jirásek, takes place from 4 to 8 September at the Faculty of Civil Engineering, Czech Technical University in Prague.

Additional info on the course is available at https://mech.fsv.cvut.cz/~milan/course2023.html. Moreover, you may also consider attending the follow-up OOFEM training session :)

Please share this information with interested candidates.

Two advanced courses are offered at the Faculty of Civil Engineering, Czech Technical University in Prague in the first half of September 2022: Modeling of Localized Inelastic Deformation (LID 2022), delivered by Milan Jirásek from 5 to 9 September, and the OOFEM training course, delivered by the leading OOFEM experts such as Bořek Patzák, Martin Horák, or Vít Šmilauer from 12 to 15 September. Save the dates (using the links above :) and see you soon in Prague!

This study investigates the influence of physical aging on the deformation behaviors of poly(ethylene terephthalate)-glycol. The polymers are subjected to a quenched and an annealed heat treatment, followed by deformation in tension. The digital image correlation (DIC) is used to capture the surface strain. The DIC results show that the deformation localization occurs in the post-yield strain softening region. The quenched and annealed polymers exhibit different localization types, representing as necking for quenched polymers and shear banding for annealed polymers. With the help of the DIC, the nucleation and propagation of the localization zones are fully captured. The DIC results show that the reference location with the maximum strain does not change with the deformation. At the same strain level, the maximum strain in the shear bands is much larger than that in the necks, which explains the failure strain of the annealed polymers is smaller than the quenched polymers. The stretch rate also has a strong effect on the localization behaviors. A larger stretch rate results in a stronger localization due to an increase in the amount of strain softening.