Experimental and modelling studies of the shape memory properties of amorphous polymer network composites
Article dans une revue avec comité de lecture
Shape memory polymer composites (SMPCs) have become an important leverage to improve the development of shape memory polymers (SMPs) applications. An amorphous SMP matrix has been filled with different types of reinforcements in this study. An experimental set of results is presented and then compared to 3D finite element simulations. Thermomechanical shape memory cycles were performed in uniaxial tension. The fillers effect was studied in stress-free and constrained-strain recoveries. Experimental observations indicate complete shape recovery and put in evidence the increased sensitivity of constrained length stress recoveries to the heating ramp on the tested composites. The simulations reproduced a simplified periodic reinforced composite and use a model for the matrix material that has been previously tested on regular SMPs. The latter combines viscoelasticity at finite strain and time-temperature superposition. The simulations permit to represent the recovery properties of a reinforced SMP easily.
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Visualiser des documents liés par titre, auteur, créateur et sujet.
Cyclic and monotonic testing of free and constrained recovery properties of a chemically crosslinked acrylate Article dans une revue avec comité de lectureARRIETA, Juan Sebastian; DIANI, Julie; GILORMINI, Pierre (Wiley, 2014)A chemically crosslinked acrylate network was submitted to various thermomechanical strain and stress recoveries while changing the experimental parameters in order to better define the benefits and the limits of using ...
Direct experimental evidence of time-temperature superposition at finite strain for an amorphous polymer network Article dans une revue avec comité de lectureDIANI, Julie; GILORMINI, Pierre; ARRIETA, Juan Sebastian (Elsevier, 2015)The time-temperature superposition property of an amorphous polymer acrylate network is characterized at infinitesimal strain by standard dynamic mechanical analysis tests. Comparison of the shift ...
Experimental characterization and thermoviscoelastic modeling of strain and stress recoveries of an amorphous polymer network Article dans une revue avec comité de lectureARRIETA, Juan Sebastian; DIANI, Julie; GILORMINI, Pierre (Elsevier, 2014)An acrylate polymer network was submitted to thermomechanical shape memory cycles. The set of experiments characterized the material stress-free strain recovery and the strain-constrained stress recovery in uniaxial tension. ...
Micromechanical modeling of the linear viscoelasticity of carbon-black filled styrene butadiene rubbers: the role of the rubber-filler interphase Article dans une revue avec comité de lectureDIANI, Julie; GILORMINI, Pierre; MERCKEL, Yannick; VION-LOISEL, Fabien (Elsevier, 2013)Micromechanics modeling of the linear viscoelasticity of carbon-black filled styrene butadiene rubbers (SBR) shows that a simple representation of a spherical rigid-phase surrounded by rubber gum and embedded in an homogeneous ...
Article dans une revue avec comité de lectureGILORMINI, Pierre; DIANI, Julie; FAYOLLE, Bruno (Elsevier, 2009)The Mullins’ effect remains a major challenge in order to provide good mechanical modeling of the complex behavior of industrial rubber materials. It’s been forty years since Mullins  wrote his review on the phenomenon ...