A thermodynamic constitutive model for shape memory polymers based on phase transition

Y Xue, J Lei, Z Liu - Polymer, 2022 - Elsevier
Shape memory polymers (SMPs) are a type of soft smart materials that can recover from the
pre-deformed shape to the original shape under different external stimuli. Existing …

Dynamic equilibria with glass transition heterogeneity and tailorable mechanics in amorphous shape memory polymers

J Liu, G Gorbacheva, H Lu, J Wang… - Smart Materials and …, 2022 - iopscience.iop.org
Modeling dynamic heterogeneity in amorphous shape memory polymers (SMPs) is a huge
challenge due to the complex statistics of strain energy distributions during their …

Thermo-mechanical deformation for thermo-induced shape memory polymers at equilibrium and non-equilibrium temperatures: Experiment and simulation

J Li, Z Liang, K Chen, X Zhang, G Kang, Q Kan - Polymer, 2023 - Elsevier
Experimental investigations on the mechanical deformations of thermo-induced shape
memory polymers (TSMPs) at equilibrium temperatures and shape memory effects at non …

A dynamic hysteresis model for customized glass transition in amorphous polymer towards multiple shape memory effects

J Liu, G Gorbacheva, H Lu, J Wang… - Smart Materials and …, 2022 - iopscience.iop.org
Coexistence of multiple and discrete segments as well as their distinctive hysteresis
relaxations enables amorphous shape memory polymers (SMPs) exhibiting complex …

Mechanical modeling of strain rate-dependent behavior of shear-stiffening gel

J Kim, Y Kim, H Shin, WR Yu - … Journal of Mechanics and Materials in …, 2023 - Springer
Shear stiffening gels (SSGs) exhibit the unique behavior of a rapid increase of modulus or
viscosity with increasing strain rate. Because of this rate-dependent behavior, SSGs are …

Boron nitride enhanced shape memory poly (aryl ether ketone) actuators with rapid self‐deformation and staged responsive behaviors

S Yang, Y He, J Leng - Polymer Composites, 2022 - Wiley Online Library
In this paper, boron nitride (BN) sheets, as two‐dimensional thermal conductive fillers, were
integrated into shape memory poly (aryl ether ketone)(PAEK) matrix to improve the response …

Multiple relaxation mechanism-based thermo-mechanical constitutive model describing cyclic shape memory effect of shape memory polyurethane

Z Liang, J Li, K Chen, C Yu, Q Kan - Acta Mechanica Sinica, 2024 - Springer
As an inherent property of the shape memory polymers (SMPs), relaxation plays a crucial
role in their mechanical deformation and shape memory effect (SME). During the shape …

A novel viscoelastic constitutive model of multi-shape memory polymer

F Zhao, B Zhou, X Zhu, H Wang - Mechanics of Advanced Materials …, 2024 - Taylor & Francis
In this paper, a novel viscoelastic constitutive model which can reflect the phase
transformation mechanism of multi-shape memory polymer (M-SMP) is established. In this …

Shape memory polymers: Modification of a constitutive model and a procedure for parameter identification

GR Hilgert, FT Stumpf - Computational Materials Science, 2024 - Elsevier
Shape memory polymers (SMPs) are a class of smart materials that can retain a temporary
shape and then recover its original shape when exposed to an external stimulus, such as …

The effect of promoting hydrogen bond aggregation based on PEMTC on the mechanical properties and shape memory function of polyurethane elastomers

M Wang, S Liang, W Gao, Y Qin - Royal Society Open …, 2022 - royalsocietypublishing.org
In this work, small molecule diols named PEMTC were synthesized from isophorone
diisocyanate, N-(2-hydroxyethyl) acrylamide and trimethylolpropane by a semi-directional …