TY - JOUR
T1 - A thermomechanical model of multi-shape memory effect for amorphous polymer with tunable segment compositions
AU - Wang, Xiaodong
AU - Lu, Haibao
AU - Shi, Xiaojuan
AU - Yu, Kai
AU - Fu, Richard
PY - 2019/3/1
Y1 - 2019/3/1
N2 - Multi-shape memory effect (multi-SME) in amorphous polymers has attracted great attention due to their complex thermal transitions and multi-step recovery behavior. Many experimental studies have been reported for synthesis, characterization, testing and demonstration of the multi-SME. However, theoretical approaches have seldom been applied although they are critically needed to understand the principles and predict the behavior of the multi-SME in various amorphous polymers. In this study, a new thermomechanical model was proposed to describe the thermo-/chemo-responsive multi-SME of amorphous polymers with tunable segment compositions. Based on the Weibull statistical model, a new constitutive framework was established to describe temperature-, stretch ratio- and strain-dependent behaviors of thermo-/chemo-responsive multi-SME. Finally, this newly proposed model was applied to quantitatively identify the crucial factors for the thermo-/chemo-responsive shape recovery behaviors, which have been verified by the reported experimental data.
AB - Multi-shape memory effect (multi-SME) in amorphous polymers has attracted great attention due to their complex thermal transitions and multi-step recovery behavior. Many experimental studies have been reported for synthesis, characterization, testing and demonstration of the multi-SME. However, theoretical approaches have seldom been applied although they are critically needed to understand the principles and predict the behavior of the multi-SME in various amorphous polymers. In this study, a new thermomechanical model was proposed to describe the thermo-/chemo-responsive multi-SME of amorphous polymers with tunable segment compositions. Based on the Weibull statistical model, a new constitutive framework was established to describe temperature-, stretch ratio- and strain-dependent behaviors of thermo-/chemo-responsive multi-SME. Finally, this newly proposed model was applied to quantitatively identify the crucial factors for the thermo-/chemo-responsive shape recovery behaviors, which have been verified by the reported experimental data.
KW - thermomechanical model
KW - composite
KW - multi-shape memory effect
UR - https://www.scopus.com/pages/publications/85055022570
U2 - 10.1016/j.compositesb.2018.10.048
DO - 10.1016/j.compositesb.2018.10.048
M3 - Article
SN - 1359-8368
VL - 160
SP - 298
EP - 305
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
ER -