TY - JOUR
T1 - Micromechanical modelling of reversible and irreversible thermo-mechanical deformation of oriented polyethylene terephthalate
AU - Poluektov, M.
AU - Dommelen, van, J.A.W.
AU - Govaert, L.E.
AU - Geers, M.G.D.
PY - 2015
Y1 - 2015
N2 - In this article, the reversible and irreversible thermo-mechanical time-dependent deformation of oriented polyethylene terephthalate film is studied. A mean-field model is used to simulate these effects along with the long-term creep behaviour, taking into account the underlying material microstructure and differences in constitutive behaviour of the phases. The material is modelled as an aggregate of layered two-phase domains. Irreversible deformation, or partial shape recovery, results from the presence of an internal stress, which is characterised and incorporated into the constitutive behaviour of the non-crystalline phase. Using the micromechanical approach, the deformation mechanisms at the local scale are analysed.
AB - In this article, the reversible and irreversible thermo-mechanical time-dependent deformation of oriented polyethylene terephthalate film is studied. A mean-field model is used to simulate these effects along with the long-term creep behaviour, taking into account the underlying material microstructure and differences in constitutive behaviour of the phases. The material is modelled as an aggregate of layered two-phase domains. Irreversible deformation, or partial shape recovery, results from the presence of an internal stress, which is characterised and incorporated into the constitutive behaviour of the non-crystalline phase. Using the micromechanical approach, the deformation mechanisms at the local scale are analysed.
U2 - 10.1016/j.commatsci.2014.11.004
DO - 10.1016/j.commatsci.2014.11.004
M3 - Article
SN - 0927-0256
VL - 98
SP - 189
EP - 200
JO - Computational Materials Science
JF - Computational Materials Science
ER -