The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer
- Autores
- Santarelli, Edgardo Luis; Frontini, Patricia Maria
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The results of an experimental test program performed to investigate the influenceof specimen dimensions and testing rate conditions on room temperature fracturetoughness of PP homopolymer are presented. The material displayed nonlinearload-displacement behavior and exhibited small amounts of slow crack growth(ductile tearing) prior to cleavage instability, which invalidates the direct applicationof the current standards for the determination of KIC in polymers. Data points wereconsiderably scattered consistently with typical ductile-brittle transition patterns.The resulting load-displacement diagrams were analyzed in terms of KQ, KMAX, andthe ratio PMAX/PQ. The fracture toughness at instability, JC, was also computed andplotted against the amount of stable crack growth in order to construct J-R curvesas a function of size and strain rate. From these curves an alternative critical fractureparameter, KJIC, was calculated. Weibull statistics were used as a tentative approachfor treating the scatter of fracture toughness of polypropylene homopolymerin large samples, which exhibited restricted ductile tearing. The significance of eachof these methods and the validity and size independence of the corresponding parametersare discussed.
Fil: Santarelli, Edgardo Luis. Universidad Nacional del Comahue; Argentina
Fil: Frontini, Patricia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina - Materia
-
Weakest Link Model
Polypropylene - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/35603
Ver los metadatos del registro completo
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The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymerSantarelli, Edgardo LuisFrontini, Patricia MariaWeakest Link ModelPolypropylenehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The results of an experimental test program performed to investigate the influenceof specimen dimensions and testing rate conditions on room temperature fracturetoughness of PP homopolymer are presented. The material displayed nonlinearload-displacement behavior and exhibited small amounts of slow crack growth(ductile tearing) prior to cleavage instability, which invalidates the direct applicationof the current standards for the determination of KIC in polymers. Data points wereconsiderably scattered consistently with typical ductile-brittle transition patterns.The resulting load-displacement diagrams were analyzed in terms of KQ, KMAX, andthe ratio PMAX/PQ. The fracture toughness at instability, JC, was also computed andplotted against the amount of stable crack growth in order to construct J-R curvesas a function of size and strain rate. From these curves an alternative critical fractureparameter, KJIC, was calculated. Weibull statistics were used as a tentative approachfor treating the scatter of fracture toughness of polypropylene homopolymerin large samples, which exhibited restricted ductile tearing. The significance of eachof these methods and the validity and size independence of the corresponding parametersare discussed.Fil: Santarelli, Edgardo Luis. Universidad Nacional del Comahue; ArgentinaFil: Frontini, Patricia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaJohn Wiley & Sons Inc2007-04-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/35603Santarelli, Edgardo Luis; Frontini, Patricia Maria; The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 10; 07-4-2007; 1803-18140032-3888CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.10877/pdfinfo:eu-repo/semantics/altIdentifier/doi/10.1002/pen.10877info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:11Zoai:ri.conicet.gov.ar:11336/35603instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:05:12.084CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
title |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
spellingShingle |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer Santarelli, Edgardo Luis Weakest Link Model Polypropylene |
title_short |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
title_full |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
title_fullStr |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
title_full_unstemmed |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
title_sort |
The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer |
dc.creator.none.fl_str_mv |
Santarelli, Edgardo Luis Frontini, Patricia Maria |
author |
Santarelli, Edgardo Luis |
author_facet |
Santarelli, Edgardo Luis Frontini, Patricia Maria |
author_role |
author |
author2 |
Frontini, Patricia Maria |
author2_role |
author |
dc.subject.none.fl_str_mv |
Weakest Link Model Polypropylene |
topic |
Weakest Link Model Polypropylene |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The results of an experimental test program performed to investigate the influenceof specimen dimensions and testing rate conditions on room temperature fracturetoughness of PP homopolymer are presented. The material displayed nonlinearload-displacement behavior and exhibited small amounts of slow crack growth(ductile tearing) prior to cleavage instability, which invalidates the direct applicationof the current standards for the determination of KIC in polymers. Data points wereconsiderably scattered consistently with typical ductile-brittle transition patterns.The resulting load-displacement diagrams were analyzed in terms of KQ, KMAX, andthe ratio PMAX/PQ. The fracture toughness at instability, JC, was also computed andplotted against the amount of stable crack growth in order to construct J-R curvesas a function of size and strain rate. From these curves an alternative critical fractureparameter, KJIC, was calculated. Weibull statistics were used as a tentative approachfor treating the scatter of fracture toughness of polypropylene homopolymerin large samples, which exhibited restricted ductile tearing. The significance of eachof these methods and the validity and size independence of the corresponding parametersare discussed. Fil: Santarelli, Edgardo Luis. Universidad Nacional del Comahue; Argentina Fil: Frontini, Patricia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina |
description |
The results of an experimental test program performed to investigate the influenceof specimen dimensions and testing rate conditions on room temperature fracturetoughness of PP homopolymer are presented. The material displayed nonlinearload-displacement behavior and exhibited small amounts of slow crack growth(ductile tearing) prior to cleavage instability, which invalidates the direct applicationof the current standards for the determination of KIC in polymers. Data points wereconsiderably scattered consistently with typical ductile-brittle transition patterns.The resulting load-displacement diagrams were analyzed in terms of KQ, KMAX, andthe ratio PMAX/PQ. The fracture toughness at instability, JC, was also computed andplotted against the amount of stable crack growth in order to construct J-R curvesas a function of size and strain rate. From these curves an alternative critical fractureparameter, KJIC, was calculated. Weibull statistics were used as a tentative approachfor treating the scatter of fracture toughness of polypropylene homopolymerin large samples, which exhibited restricted ductile tearing. The significance of eachof these methods and the validity and size independence of the corresponding parametersare discussed. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-04-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/35603 Santarelli, Edgardo Luis; Frontini, Patricia Maria; The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 10; 07-4-2007; 1803-1814 0032-3888 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/35603 |
identifier_str_mv |
Santarelli, Edgardo Luis; Frontini, Patricia Maria; The effects of specimen size and testing conditions on fracture toughness evaluation of polypropylene homopolymer; John Wiley & Sons Inc; Polymer Engineering and Science; 41; 10; 07-4-2007; 1803-1814 0032-3888 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/pen.10877/pdf info:eu-repo/semantics/altIdentifier/doi/10.1002/pen.10877 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
John Wiley & Sons Inc |
publisher.none.fl_str_mv |
John Wiley & Sons Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613885404905472 |
score |
13.070432 |