Serveur d'exploration sur la simulation d'un remplissage de moule

Attention, ce site est en cours de développement !
Attention, site généré par des moyens informatiques à partir de corpus bruts.
Les informations ne sont donc pas validées.

Small strain behavior of polyethylene: In situ SAXS measurements

Identifieur interne : 000103 ( France/Analysis ); précédent : 000102; suivant : 000104

Small strain behavior of polyethylene: In situ SAXS measurements

Auteurs : Séverine Humbert [France] ; Olivier Lame [France] ; Jean-Marc Chenal [France] ; Cyrille Rochas [France] ; Gérard Vigier [France]

Source :

Mots-clés :

Abstract

Stack lamella deformation depends on their orientation with respect to the loading axis, the intrinsic properties of the lamellae, and the mechanical coupling between crystalline and amorphous phases. The aim of this work is to investigate the influence of the stress transmitter (ST) density and the crystallinity Xc on the local deformation. A wide experimental campaign has been undertaken on several polyethylenes with controlled molecular parameters and subjected to different thermal treatments. The ST density has been evaluated by the natural draw ratio and calculated by the Brown's model. The local deformation was measured by SAXS along a tensile test by using the long period stretching of the equatorial lamella stacks. The ratio εlocal/εmacro was found to be a constant close to 0.5. This surprising low value has highlighted that the equatorial regions could be either the stiffest zone of the spherulite or submitted to a lower stress. It is proposed that the stability of the ratio εlocal/εmacro is the result of two opposite phenomena: On one hand, the increase of Xc leads to unload the equatorial regions due to partial percolation of the crystalline phase and so decreases the stresses. On the other hand, when increasing Xc, the ST density decreases which causes the decrease in the local equatorial modulus. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 1535–1542, 2010


Url:
DOI: 10.1002/polb.22024


Affiliations:


Links toward previous steps (curation, corpus...)


Links to Exploration step

ISTEX:85EAFB65BD758C70FB8826ED745C08284ECB499D

Le document en format XML

<record>
<TEI wicri:istexFullTextTei="biblStruct">
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">Small strain behavior of polyethylene: In situ SAXS measurements</title>
<author>
<name sortKey="Humbert, Severine" sort="Humbert, Severine" uniqKey="Humbert S" first="Séverine" last="Humbert">Séverine Humbert</name>
</author>
<author>
<name sortKey="Lame, Olivier" sort="Lame, Olivier" uniqKey="Lame O" first="Olivier" last="Lame">Olivier Lame</name>
</author>
<author>
<name sortKey="Chenal, Jean Arc" sort="Chenal, Jean Arc" uniqKey="Chenal J" first="Jean-Marc" last="Chenal">Jean-Marc Chenal</name>
</author>
<author>
<name sortKey="Rochas, Cyrille" sort="Rochas, Cyrille" uniqKey="Rochas C" first="Cyrille" last="Rochas">Cyrille Rochas</name>
</author>
<author>
<name sortKey="Vigier, Gerard" sort="Vigier, Gerard" uniqKey="Vigier G" first="Gérard" last="Vigier">Gérard Vigier</name>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:85EAFB65BD758C70FB8826ED745C08284ECB499D</idno>
<date when="2010" year="2010">2010</date>
<idno type="doi">10.1002/polb.22024</idno>
<idno type="url">https://api.istex.fr/document/85EAFB65BD758C70FB8826ED745C08284ECB499D/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">001E91</idno>
<idno type="wicri:Area/Istex/Curation">001E91</idno>
<idno type="wicri:Area/Istex/Checkpoint">000B90</idno>
<idno type="wicri:doubleKey">0887-6266:2010:Humbert S:small:strain:behavior</idno>
<idno type="wicri:Area/Main/Merge">000F92</idno>
<idno type="wicri:Area/Main/Curation">000F84</idno>
<idno type="wicri:Area/Main/Exploration">000F84</idno>
<idno type="wicri:Area/France/Extraction">000103</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title level="a" type="main" xml:lang="en">Small strain behavior of polyethylene: In situ SAXS measurements</title>
<author>
<name sortKey="Humbert, Severine" sort="Humbert, Severine" uniqKey="Humbert S" first="Séverine" last="Humbert">Séverine Humbert</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>MATEIS‐CNRS UMR5510, Bâtiment Blaise Pascal, INSA‐Lyon, Villeurbanne F‐69621</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Lame, Olivier" sort="Lame, Olivier" uniqKey="Lame O" first="Olivier" last="Lame">Olivier Lame</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>MATEIS‐CNRS UMR5510, Bâtiment Blaise Pascal, INSA‐Lyon, Villeurbanne F‐69621</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Chenal, Jean Arc" sort="Chenal, Jean Arc" uniqKey="Chenal J" first="Jean-Marc" last="Chenal">Jean-Marc Chenal</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>MATEIS‐CNRS UMR5510, Bâtiment Blaise Pascal, INSA‐Lyon, Villeurbanne F‐69621</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Rochas, Cyrille" sort="Rochas, Cyrille" uniqKey="Rochas C" first="Cyrille" last="Rochas">Cyrille Rochas</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>CERMAV‐CNRS, BP 53 – 38041, Grenoble cedex 9</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
<settlement type="city">Grenoble</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Vigier, Gerard" sort="Vigier, Gerard" uniqKey="Vigier G" first="Gérard" last="Vigier">Gérard Vigier</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>MATEIS‐CNRS UMR5510, Bâtiment Blaise Pascal, INSA‐Lyon, Villeurbanne F‐69621</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
</placeName>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series>
<title level="j">Journal of Polymer Science Part B: Polymer Physics</title>
<title level="j" type="abbrev">J. Polym. Sci. B Polym. Phys.</title>
<idno type="ISSN">0887-6266</idno>
<idno type="eISSN">1099-0488</idno>
<imprint>
<publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher>
<pubPlace>Hoboken</pubPlace>
<date type="published" when="2010-07-01">2010-07-01</date>
<biblScope unit="volume">48</biblScope>
<biblScope unit="issue">13</biblScope>
<biblScope unit="page" from="1535">1535</biblScope>
<biblScope unit="page" to="1542">1542</biblScope>
</imprint>
<idno type="ISSN">0887-6266</idno>
</series>
<idno type="istex">85EAFB65BD758C70FB8826ED745C08284ECB499D</idno>
<idno type="DOI">10.1002/polb.22024</idno>
<idno type="ArticleID">POLB22024</idno>
</biblStruct>
</sourceDesc>
<seriesStmt>
<idno type="ISSN">0887-6266</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>SAXS</term>
<term>deformation</term>
<term>polyethylene (PE)</term>
<term>spherulites</term>
<term>tie molecules</term>
</keywords>
</textClass>
<langUsage>
<language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Stack lamella deformation depends on their orientation with respect to the loading axis, the intrinsic properties of the lamellae, and the mechanical coupling between crystalline and amorphous phases. The aim of this work is to investigate the influence of the stress transmitter (ST) density and the crystallinity Xc on the local deformation. A wide experimental campaign has been undertaken on several polyethylenes with controlled molecular parameters and subjected to different thermal treatments. The ST density has been evaluated by the natural draw ratio and calculated by the Brown's model. The local deformation was measured by SAXS along a tensile test by using the long period stretching of the equatorial lamella stacks. The ratio εlocal/εmacro was found to be a constant close to 0.5. This surprising low value has highlighted that the equatorial regions could be either the stiffest zone of the spherulite or submitted to a lower stress. It is proposed that the stability of the ratio εlocal/εmacro is the result of two opposite phenomena: On one hand, the increase of Xc leads to unload the equatorial regions due to partial percolation of the crystalline phase and so decreases the stresses. On the other hand, when increasing Xc, the ST density decreases which causes the decrease in the local equatorial modulus. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 1535–1542, 2010</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>France</li>
</country>
<region>
<li>Auvergne-Rhône-Alpes</li>
<li>Rhône-Alpes</li>
</region>
<settlement>
<li>Grenoble</li>
</settlement>
</list>
<tree>
<country name="France">
<region name="Auvergne-Rhône-Alpes">
<name sortKey="Humbert, Severine" sort="Humbert, Severine" uniqKey="Humbert S" first="Séverine" last="Humbert">Séverine Humbert</name>
</region>
<name sortKey="Chenal, Jean Arc" sort="Chenal, Jean Arc" uniqKey="Chenal J" first="Jean-Marc" last="Chenal">Jean-Marc Chenal</name>
<name sortKey="Lame, Olivier" sort="Lame, Olivier" uniqKey="Lame O" first="Olivier" last="Lame">Olivier Lame</name>
<name sortKey="Rochas, Cyrille" sort="Rochas, Cyrille" uniqKey="Rochas C" first="Cyrille" last="Rochas">Cyrille Rochas</name>
<name sortKey="Vigier, Gerard" sort="Vigier, Gerard" uniqKey="Vigier G" first="Gérard" last="Vigier">Gérard Vigier</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/corpus/SimuPvV1/Data/France/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000103 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Terre
   |area=    SimuPvV1
   |flux=    France
   |étape=   Analysis
   |type=    RBID
   |clé=     ISTEX:85EAFB65BD758C70FB8826ED745C08284ECB499D
   |texte=   Small strain behavior of polyethylene: In situ SAXS measurements
}}

Wicri

This area was generated with Dilib version V0.6.23.
Data generation: Thu Sep 15 17:34:16 2016. Site generation: Thu Sep 15 18:23:44 2016