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Measurement of multi-scale deformation of polycarbonate using X-ray scattering with in-situ loading and digital image correlation

Engqvist, Jonas LU ; Wallin, Mathias LU ; Hall, Stephen LU ; Ristinmaa, Matti LU and Plivelic, Tomás LU (2016) In Polymer 82. p.190-197
Abstract
Deformation of amorphous, glassy polycarbonate (PC) is characterised over a wide range of length-scales using spatially-resolved wide angle X-ray scattering (WAXS) with simultaneous digital image correlation and in-situ uni-axial loading. Novel observations are presented on the correlation of the evolution of the molecular structure linked to the relevant local macroscopic measures of strain as the sample deforms. This provides new insights into the mechanisms of deformation in amorphous, glassy polymers. Strains and evolving anisotropy are observed, and quantified, at different length scales identified from the WAXS

measurements connected to inter- and intramolecular structures. The intermolecular structures show permanent... (More)
Deformation of amorphous, glassy polycarbonate (PC) is characterised over a wide range of length-scales using spatially-resolved wide angle X-ray scattering (WAXS) with simultaneous digital image correlation and in-situ uni-axial loading. Novel observations are presented on the correlation of the evolution of the molecular structure linked to the relevant local macroscopic measures of strain as the sample deforms. This provides new insights into the mechanisms of deformation in amorphous, glassy polymers. Strains and evolving anisotropy are observed, and quantified, at different length scales identified from the WAXS

measurements connected to inter- and intramolecular structures. The intermolecular structures show permanent deformations in the form of unrecoverable stretches and reorientations, whilst intramolecular structures how recoverable strains and unrecoverable reorientations. Such insights pave the way for development of enhanced constitutive models for amorphous glassy polymers with a correct micro-mechanical basis and calibrated evolution of anisotropy. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
In-situ deformation of polycarbonate, Wide angel X-ray scattering, Digital image correlation
in
Polymer
volume
82
pages
190 - 197
publisher
Elsevier
external identifiers
  • wos:000369095300022
  • scopus:84949202049
ISSN
0032-3861
DOI
10.1016/j.polymer.2015.11.028
language
English
LU publication?
yes
id
bc625111-21e7-4825-bdd3-702f560e87bb (old id 8310437)
date added to LUP
2015-12-14 09:29:14
date last changed
2017-01-01 05:48:59
@article{bc625111-21e7-4825-bdd3-702f560e87bb,
  abstract     = {Deformation of amorphous, glassy polycarbonate (PC) is characterised over a wide range of length-scales using spatially-resolved wide angle X-ray scattering (WAXS) with simultaneous digital image correlation and in-situ uni-axial loading. Novel observations are presented on the correlation of the evolution of the molecular structure linked to the relevant local macroscopic measures of strain as the sample deforms. This provides new insights into the mechanisms of deformation in amorphous, glassy polymers. Strains and evolving anisotropy are observed, and quantified, at different length scales identified from the WAXS<br/><br>
measurements connected to inter- and intramolecular structures. The intermolecular structures show permanent deformations in the form of unrecoverable stretches and reorientations, whilst intramolecular structures how recoverable strains and unrecoverable reorientations. Such insights pave the way for development of enhanced constitutive models for amorphous glassy polymers with a correct micro-mechanical basis and calibrated evolution of anisotropy.},
  author       = {Engqvist, Jonas and Wallin, Mathias and Hall, Stephen and Ristinmaa, Matti and Plivelic, Tomás},
  issn         = {0032-3861},
  keyword      = {In-situ deformation of polycarbonate,Wide angel X-ray scattering,Digital image correlation},
  language     = {eng},
  pages        = {190--197},
  publisher    = {Elsevier},
  series       = {Polymer},
  title        = {Measurement of multi-scale deformation of polycarbonate using X-ray scattering with in-situ loading and digital image correlation},
  url          = {http://dx.doi.org/10.1016/j.polymer.2015.11.028},
  volume       = {82},
  year         = {2016},
}