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@INPROCEEDINGS{Poncot:206034,
author = {Poncot, Marc and chaudemanche, samuel and Royaud, Isabelle
and Bourson, Patrice and Dahoun, Abdesselam},
title = {{I}n situ study of plastic micro-mechanisms of deformation
involved during stretching forvarious composites based on
isotactic polypropylene: characterization ofmacromolecular
chains orientation and volume damage.},
reportid = {PUBDB-2015-00567},
year = {2014},
abstract = {Simulation and prediction of the thermo-mechanical behavior
of composites based on thermoplastic polymers do not cease
arousing the interest of a wide range of manufacturers in
the automotive industry, for instance. Therefore, the
determination of mechanical behavior laws must be the most
efficient as possible. The key parameter to take into
account is the microstructure evolution of the polymers
during the mechanical solicitation [1-6]. This paper focuses
on the characterization of the irreversible microstructural
mechanisms involved during plastic deformation stage of
uniaxial stretching tests. The matrix material of the study
is the isotactic polypropylene (iPP) declined in various
forms: a neat iPP, an impact iPP(PP/EPR) and two PP/EPR
composites filled with mineral particles (µ-talc and
CaCO3). The various compositions of these materials allow
highlighting the competition between the macromolecular
chains orientation mechanism and the volume damage process.
Raman spectroscopy analyses are performed in real time
during the mechanical solicitation using the
VidéoTraction™ system [2, 5-7]. This innovative coupling
system enables to follow the evolutions of the different
studied composites microstructures. Results brought by Raman
spectroscopy are correlated with others common analyses
techniques such as in situ Wide Angle X-ray Scattering
(performed with high energy synchrotron radiation on the P07
beamline at PETRAIII, Hamburg, Germany), in situ Incoherent
Steady Light Transport and in situ Scanning Electron
Microscopy observations.},
month = {Jun},
date = {2014-06-08},
organization = {Mechanics of Composites, Stony Brook,
New York (USA), 8 Jun 2014 - 12 Jun
2014},
subtyp = {Other},
cin = {DOOR},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {PETRA Beamline P07 (POF2-54G14)},
pid = {G:(DE-H253)POF2-P07-20130405},
experiment = {EXP:(DE-H253)P-P07-20150101},
typ = {PUB:(DE-HGF)6},
url = {https://bib-pubdb1.desy.de/record/206034},
}