Multiscale plasticity simulation considering spherulite structure of polypropylene

Polymeric materials are divided broadly into two categories, amorphous and crystalline polymers. Polypropylene (PP) is widely used from daily necessities to machine parts because of its high formability and light weight. PP that is classified as a crystalline polymer has the following multiscale str...

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Autores principales:	Yoshiteru AOYAGI, Atsushi INOUE, Toshiki SASAYAMA, Yoshinori INOUE
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2014
Materias:	high polymer materials finite element method amorphous law of mixture constitutive equation stress-strain measurement plasticity spherulite polypropylene Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/79c288bb841a4602b80e7f0b63767272
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spelling	oai:doaj.org-article:79c288bb841a4602b80e7f0b637672722021-11-26T06:14:30ZMultiscale plasticity simulation considering spherulite structure of polypropylene2187-974510.1299/mej.2014cm0062https://doaj.org/article/79c288bb841a4602b80e7f0b637672722014-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/1/6/1_2014cm0062/_pdf/-char/enhttps://doaj.org/toc/2187-9745Polymeric materials are divided broadly into two categories, amorphous and crystalline polymers. Polypropylene (PP) is widely used from daily necessities to machine parts because of its high formability and light weight. PP that is classified as a crystalline polymer has the following multiscale structures. Lamellae consisting of amorphous and crystalline phases grow radially and spherulites are generated. PP is filled with the spherulites, whose size and crystallinity are determined by molding conditions. Many researchers have studied the deformation of crystalline polymeric materials. However, many points remain unclear, such as the effects of multiscale structures on the material and mechanical properties of the crystalline polymer. A computational model reproducing the properties of PP based on multiscale structures is desired in the materials science and engineering fields. In this study, we perform a polymer plasticity simulation considering a spherulite structure consisting of amorphous and crystalline phases in order to investigate the effects of the amorphous and the crystalline phases of PP on macroscopic stress-strain behavior. PP samples with different crystallinity are prepared by changing the cooling conditions. Information on the crystallinity of specimens based on the experiment results is introduced into a computational model. We thoroughly investigate the effect of spherulite structures on the material properties of PP.Yoshiteru AOYAGIAtsushi INOUEToshiki SASAYAMAYoshinori INOUEThe Japan Society of Mechanical Engineersarticlehigh polymer materialsfinite element methodamorphouslaw of mixtureconstitutive equationstress-strain measurementplasticityspherulitepolypropyleneMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 1, Iss 6, Pp CM0062-CM0062 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	high polymer materials finite element method amorphous law of mixture constitutive equation stress-strain measurement plasticity spherulite polypropylene Mechanical engineering and machinery TJ1-1570
spellingShingle	high polymer materials finite element method amorphous law of mixture constitutive equation stress-strain measurement plasticity spherulite polypropylene Mechanical engineering and machinery TJ1-1570 Yoshiteru AOYAGI Atsushi INOUE Toshiki SASAYAMA Yoshinori INOUE Multiscale plasticity simulation considering spherulite structure of polypropylene
description	Polymeric materials are divided broadly into two categories, amorphous and crystalline polymers. Polypropylene (PP) is widely used from daily necessities to machine parts because of its high formability and light weight. PP that is classified as a crystalline polymer has the following multiscale structures. Lamellae consisting of amorphous and crystalline phases grow radially and spherulites are generated. PP is filled with the spherulites, whose size and crystallinity are determined by molding conditions. Many researchers have studied the deformation of crystalline polymeric materials. However, many points remain unclear, such as the effects of multiscale structures on the material and mechanical properties of the crystalline polymer. A computational model reproducing the properties of PP based on multiscale structures is desired in the materials science and engineering fields. In this study, we perform a polymer plasticity simulation considering a spherulite structure consisting of amorphous and crystalline phases in order to investigate the effects of the amorphous and the crystalline phases of PP on macroscopic stress-strain behavior. PP samples with different crystallinity are prepared by changing the cooling conditions. Information on the crystallinity of specimens based on the experiment results is introduced into a computational model. We thoroughly investigate the effect of spherulite structures on the material properties of PP.
format	article
author	Yoshiteru AOYAGI Atsushi INOUE Toshiki SASAYAMA Yoshinori INOUE
author_facet	Yoshiteru AOYAGI Atsushi INOUE Toshiki SASAYAMA Yoshinori INOUE
author_sort	Yoshiteru AOYAGI
title	Multiscale plasticity simulation considering spherulite structure of polypropylene
title_short	Multiscale plasticity simulation considering spherulite structure of polypropylene
title_full	Multiscale plasticity simulation considering spherulite structure of polypropylene
title_fullStr	Multiscale plasticity simulation considering spherulite structure of polypropylene
title_full_unstemmed	Multiscale plasticity simulation considering spherulite structure of polypropylene
title_sort	multiscale plasticity simulation considering spherulite structure of polypropylene
publisher	The Japan Society of Mechanical Engineers
publishDate	2014
url	https://doaj.org/article/79c288bb841a4602b80e7f0b63767272
work_keys_str_mv	AT yoshiteruaoyagi multiscaleplasticitysimulationconsideringspherulitestructureofpolypropylene AT atsushiinoue multiscaleplasticitysimulationconsideringspherulitestructureofpolypropylene AT toshikisasayama multiscaleplasticitysimulationconsideringspherulitestructureofpolypropylene AT yoshinoriinoue multiscaleplasticitysimulationconsideringspherulitestructureofpolypropylene
_version_	1718409784719310848

Multiscale plasticity simulation considering spherulite structure of polypropylene

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