Microstructure-mechanical properties relationships in vibration welded glass-fiber-reinforced polyamide 66: A high-resolution X-ray microtomography study
Type
Articles dans des revues avec comité de lectureAuthor
Date
2020Journal
Polymer TestingAbstract
The effect of initial fiber orientation and welding conditions on the mechanical properties and microstructure of 30 wt% glass-fiber-reinforced polyamide 66 was systematically evaluated. For all conditions studied no significant change in the polymer matrix was evidenced. However, fibers in the welded zone were reoriented toward the squeeze and vibration flows and this reorientation is related to the appearance of cavities, as evidenced by high-resolution synchrotron-based X-ray microtomography. It is shown that stress at break values of the welded samples increase with the thickness of the weld zone together with the minimum value of the fiber orientation tensor component in the tensile direction. A drop of strain at break is also related to an increase in the fibers’ concentration in the weld. The maximum void volume fraction being measured on samples which have the thickest welded zones, counterintuitively it does not induce lower stress at break.
Files in this item
- Name:
- PIMM_PT_2020_GIRAULT.pdf
- Size:
- 3.625Mb
- Format:
- Description:
- Article
- Embargoed until:
- 2020-11-30
Related items
Showing items related by title, author, creator and subject.
-
BOUAZIZ, Rami; TRUFFAULT, Laurianne; BORISOV, Rouslan; OVALLE, Cristian; LAIARINANDRASANA, Lucien; MIQUELARD-GARNIER, Guillaume; FAYOLLE, Bruno (MDPI, 2020)Being able to predict the lifetime of elastomers is fundamental for many industrial applications. The evolution of both tensile and compression behavior of unfilled and filled neoprene rubbers was studied over time for ...
-
RASSELET, Damien; RUELLAN, Alexandre; GUINAULT, Alain; MIQUELARD-GARNIER, Guillaume; SOLLOGOUB, Cyrille; FAYOLLE, Bruno (ELSEVIER, 2014)The thermo-oxidative degradation of polylactide (PLA) films was studied between 70 and 150 C. It was shown that the oxidative degradation of PLA leads to a random chain cission responsible for a reduction of the molar ...
-
TENCÉ-GIRAULT, Sylvie; LEBRETON, Sylvie; BUNAU, Oana; DANG, Patrick; BARGAIN, François (MDPI, 2019)This manuscript of the special issue “Microstructural Evolution and Mechanical Behavior of Semi-Crystalline Polymers” aims to show that Small Angle X-ray Scattering (SAXS) and Wide Angle X-ray Scattering (WAXS) experiments ...
-
THUAU, Damien; KALLITSIS, Konstantinos; HA, Sara; BARGAIN, François; SOULESTIN, Thibaut; PÉCASTAINGS, Gilles; TENCÉ-GIRAULT, Sylvie; DOMINGUES-DOS SANTOS, Fabrice; HADZIIOANNOU, Georges P. (Wiley, 2020)Relaxor ferroelectric polymers exhibit high k at their structural phase transition around room temperature. They are particularly attractive as gate dielectric in organic field effect transistor (OFET). Nevertheless, their ...
-
BARGAIN, François; THUAU, Damien; PANINE, Pierre; HADZIIOANNOU, Georges; DOMINGUES DOS SANTOS, Fabrice; TENCE-GIRAULT, Sylvie (elsevier, 2019)Depending on their CTFE content (from 0 to 10 mol %), poly (VDF-ter-TrFE-ter-CTFE), poly(vinylidene fluoride-ter-trifluoroethylene-ter-chlorotrifluoroethylene) copolymers exhibit ferroelectric (FE) or relaxor ferroelectric ...