%0 Journal Article
%T Investigation of thermo-mechanical shape memory signatures of 3D printed and Injection molded polymers
%+ HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)
%+ Institut de Recherche Dupuy de Lôme (IRDL)
%A Akbar, Ijaz
%A El Hadrouz, Mourad
%A El Mansori, Mohamed
%A Tarfaoui, Mostapha
%< avec comité de lecture
%@ 1755-5817
%J CIRP Journal of Manufacturing Science and Technology
%I Elsevier
%V 41
%P 277-291
%8 2023-04
%D 2023
%R 10.1016/j.cirpj.2022.12.011
%Z Engineering Sciences [physics]/MaterialsJournal articles
%X This research paper investigates the shape memory signatures (SMSs) of SMPs fabricated by two different manufacturing processes, namely Fused Filament Fabricated (FFF) and Injection-molding (IM). The SMSs of each manufacturing route is first investigated by rating the thermophysical and thermodynamic properties of amorphous and semicrystalline-type shape memory polymers. Secondly, the capturing of SMSs is completed by a series of thermomechanical shape programming/recovery cycles on FFF printed specimens, and the results are correlated with the IM-produced samples of similar nature. Furthermore, the thermomechanical cycles are programmed at varying heating rates (1, 2, 3, and 5 °C min−1) to analyze their influence on shape memory behavior and cycling time. Results depict that an increase in induced pre-strain driven by small to large deformations (10% → 25%) in the elastic range leads to maximum shape memory performance and the highest performance was reported while heating at 2 and 3 °C min−1, respectively. Finally, the IM-produced samples showed slightly better shape recovery compared to the 3D-printed samples. The shape memory signatures of 3DP specimens are indeed up to 86% like the ones produced by injection molding, which is mostly governed by the distinct residual stress/strain induced during the two different manufacturing processes.
%G English
%L hal-03970470
%U https://hal-ensta-bretagne.archives-ouvertes.fr/hal-03970470
%~ UNIV-BREST
%~ ENSTA-BRETAGNE
%~ CNRS
%~ UNIV-UBS
%~ UBS
%~ ENIB
%~ IRDL
%~ ENSTA-BRETAGNE-MECA
%~ ENSTA-BRETAGNE-PTR1-IRDL