PMID- 33233462 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201130 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 12 IP - 11 DP - 2020 Nov 21 TI - Reliability of Free Inflation and Dynamic Mechanics Tests on the Prediction of the Behavior of the Polymethylsilsesquioxane-High-Density Polyethylene Nanocomposite for Thermoforming Applications. LID - 10.3390/polym12112753 [doi] LID - 2753 AB - Numerical modeling of the thermoforming process of polymeric sheets requires precise knowledge of the viscoelastic behavior under conjugate effect pressure and temperature. Using two different experiments, bubble inflation and dynamic mechanical testing on a high-density polyethylene (HDPE) nanocomposite reinforced with polymethylsilsesquioxane HDPE (PMSQ-HDPE) nanoparticles, material constants for Christensen's model were determined by the least squares optimization. The viscoelastic identification relative to the inflation test seemed to be the most appropriate for the numerical study of thermoforming of a thin PMSQ-HDPE part. For this purpose, the finite element method was considered. FAU - Erchiqui, Fouad AU - Erchiqui F AUID- ORCID: 0000-0002-3208-6801 AD - Ecole de Genie, Universite du Quebec en Abitibi-Temiscamingue, 445, boul. de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada. FAU - Zaafrane, Khaled AU - Zaafrane K AD - Ecole de Genie, Universite du Quebec en Abitibi-Temiscamingue, 445, boul. de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada. FAU - Baatti, Abdessamad AU - Baatti A AD - Ecole de Genie, Universite du Quebec en Abitibi-Temiscamingue, 445, boul. de l'Universite, Rouyn-Noranda, QC J9X 5E4, Canada. FAU - Kaddami, Hamid AU - Kaddami H AUID- ORCID: 0000-0002-9511-614X AD - Faculte des Sciences et Techniques, Universite Caddi Ayad, Marrakech 40000, Morocco. FAU - Imad, Abdellatif AU - Imad A AD - Unite de Mecanique de Lille, Universite de Lille, UML, Joseph Boussinesq, F5900 Lille, France. LA - eng PT - Journal Article DEP - 20201121 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC7700529 OTO - NOTNLM OT - Christensen's model OT - DMA OT - FEM OT - PMSQ-HDPE OT - bubble inflation test OT - experimental OT - thermoforming OT - viscoelastic COIS- The authors declare no conflict of interest. EDAT- 2020/11/26 06:00 MHDA- 2020/11/26 06:01 PMCR- 2020/11/21 CRDT- 2020/11/25 01:03 PHST- 2020/10/21 00:00 [received] PHST- 2020/11/13 00:00 [revised] PHST- 2020/11/17 00:00 [accepted] PHST- 2020/11/25 01:03 [entrez] PHST- 2020/11/26 06:00 [pubmed] PHST- 2020/11/26 06:01 [medline] PHST- 2020/11/21 00:00 [pmc-release] AID - polym12112753 [pii] AID - polymers-12-02753 [pii] AID - 10.3390/polym12112753 [doi] PST - epublish SO - Polymers (Basel). 2020 Nov 21;12(11):2753. doi: 10.3390/polym12112753.