Coalescence modeling and experimental validation of sintering of thermoplastic polyamide fibers
TypeArticles dans des revues avec comité de lecture
In order to study the coalescence mechanisms of thermoplastic polymer powders, a 2D mathematical model has been established based on Frenkel, Eshelby and Pokluda’s model. Sintering experiments have been carried out by using two polyamide fibers that can be considered as infinite cylinders with its length much larger than the diameter. 2D mathematical model has been validated through comparison with results of sintering experiments as well as Constrained Natural Element Method (C-NEM) coalescence simulation. This consistence shows that the proposed coalescence model and experimental results can provide a reference for the numerical simulation of sintering process.
Showing items related by title, author, creator and subject.
Experimental and numerical analysis of the selective laser sintering (SLS) of PA12 and PEKK semi-crystalline polymers ROUCHAUSSE, Yann; PEYRE, Patrice; DEFAUCHY, Denis; REGNIER, Gilles (Elsevier, 2015)A dual experimental-numerical approach was carried out to estimate thermal cycles and resulting fusion depths obtained during the selective laser sintering (SLS) of two polymers: PA12 and PEKK. The validation of thermal ...
Experimental and numerical analysis of the selective laser sintering (SLS) of PA12 and PEKK semi-crystalline polymers PEYRE, Patrice; ROUCHAUSSE, Yann; DEFAUCHY, Denis; REGNIER, Gilles (ELSEVIER, 2015)A dual experimental-numerical approach was carried out to estimate thermal cycles and resulting fusion depths obtained during the selective laser sintering (SLS) of two polymers: PA12 and PEKK. The validation of thermal ...
Forced assembly by multilayer coextrusion to create oriented graphene reinforced polymer nanocomposites LI, Xiguang; MCKENNA, Gregory; MIQUELARD-GARNIER, Guillaume; GUINAULT, Alain; SOLLOGOUB, Cyrille; REGNIER, Gilles; ROZANSKI, Artur (ELSEVIER, 2013)A potential advantage of platelet-like nanofillers as nanocomposite reinforcements is the possibility of achieving two-dimensional stiffening through planar orientation of the platelets. The ability to achieve improved ...
DEFAUCHY, Virginie; LE GAC, Pierre Yves; GUINAULT, Alain; VERDU, Jacques; RECHER, Gilles; DROZDZAK, Renata; RICHAUD, Emmanuel (Elsevier, 2017)The in situ thermal oxidation of thin unstabilized polydicyclopentadiene was studied by TGA to monitor mass gain, and DSC to characterize hydroperoxides concentration. Results were discussed using kinetic analysis, which ...
XU, Tao; ZHANG, Xihui; CLARAMUNT, Christophe; XIANG, LI (Elsevier, 2018)With the dramatic development of location-based services, a large amount of vehicle trajectory data are available and applied to different areas,while there are still many research challenges left, one of thembeing data ...