System to measure torsion modulus of polymers using the deformation energy method
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0104-1428.01019 http://hdl.handle.net/11449/186160 |
Resumo: | This paper presents an alternative method to measure the torsion modulus, G, for samples of polymers. We constructed a measurement system with a force sensor (FS) and a rotational movement sensor (RMS) to obtain a relationship between force (F) and torsion angle (theta). An expression that could return the value of G was deduced using the deformation energy method. This technique is nondestructive and independent of knowing the value of Poisson's ratio. Samples with different diameters of polytetrafluoroethylene (PTFE) were submitted to quasi-static torsion at the same aspect ratio. The aim was to present and validate the use of the technique for a known polymer. The approximate value of 350 MPa of the torsion modulus G was found for PTFE samples. As the values obtained are within the limits found in the literature, the technique can be used to study samples of polymers and other materials. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
System to measure torsion modulus of polymers using the deformation energy methoddeformation energyforce sensorpolytetrafluoroethylene (PTFE)rotational movement sensortorsion modulusThis paper presents an alternative method to measure the torsion modulus, G, for samples of polymers. We constructed a measurement system with a force sensor (FS) and a rotational movement sensor (RMS) to obtain a relationship between force (F) and torsion angle (theta). An expression that could return the value of G was deduced using the deformation energy method. This technique is nondestructive and independent of knowing the value of Poisson's ratio. Samples with different diameters of polytetrafluoroethylene (PTFE) were submitted to quasi-static torsion at the same aspect ratio. The aim was to present and validate the use of the technique for a known polymer. The approximate value of 350 MPa of the torsion modulus G was found for PTFE samples. As the values obtained are within the limits found in the literature, the technique can be used to study samples of polymers and other materials.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Estadual Paulista, UNESP, Fac Ciencias, Dept Fis, Bauru, SP, BrazilUniv Estadual Paulista, UNESP, Fac Ciencias, Dept Fis, Bauru, SP, BrazilFAPESP: 2007/04094-9FAPESP: 2017/08820-8FAPESP: 2018/12463-9CAPES: 024/2012CAPES: 011/2009Assoc Brasil PolimerosUniversidade Estadual Paulista (Unesp)Fonzar Pintao, Carlos Alberto [UNESP]Piedade, Lucas Pereira [UNESP]Borali, Edgar [UNESP]2019-10-04T12:42:20Z2019-10-04T12:42:20Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8application/pdfhttp://dx.doi.org/10.1590/0104-1428.01019Polimeros-ciencia E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 29, n. 3, 8 p., 2019.0104-1428http://hdl.handle.net/11449/18616010.1590/0104-1428.01019S0104-14282019000300401WOS:000484851300001S0104-14282019000300401.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolimeros-ciencia E Tecnologiainfo:eu-repo/semantics/openAccess2024-04-25T17:40:09Zoai:repositorio.unesp.br:11449/186160Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:36:43.741285Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
System to measure torsion modulus of polymers using the deformation energy method |
title |
System to measure torsion modulus of polymers using the deformation energy method |
spellingShingle |
System to measure torsion modulus of polymers using the deformation energy method Fonzar Pintao, Carlos Alberto [UNESP] deformation energy force sensor polytetrafluoroethylene (PTFE) rotational movement sensor torsion modulus |
title_short |
System to measure torsion modulus of polymers using the deformation energy method |
title_full |
System to measure torsion modulus of polymers using the deformation energy method |
title_fullStr |
System to measure torsion modulus of polymers using the deformation energy method |
title_full_unstemmed |
System to measure torsion modulus of polymers using the deformation energy method |
title_sort |
System to measure torsion modulus of polymers using the deformation energy method |
author |
Fonzar Pintao, Carlos Alberto [UNESP] |
author_facet |
Fonzar Pintao, Carlos Alberto [UNESP] Piedade, Lucas Pereira [UNESP] Borali, Edgar [UNESP] |
author_role |
author |
author2 |
Piedade, Lucas Pereira [UNESP] Borali, Edgar [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Fonzar Pintao, Carlos Alberto [UNESP] Piedade, Lucas Pereira [UNESP] Borali, Edgar [UNESP] |
dc.subject.por.fl_str_mv |
deformation energy force sensor polytetrafluoroethylene (PTFE) rotational movement sensor torsion modulus |
topic |
deformation energy force sensor polytetrafluoroethylene (PTFE) rotational movement sensor torsion modulus |
description |
This paper presents an alternative method to measure the torsion modulus, G, for samples of polymers. We constructed a measurement system with a force sensor (FS) and a rotational movement sensor (RMS) to obtain a relationship between force (F) and torsion angle (theta). An expression that could return the value of G was deduced using the deformation energy method. This technique is nondestructive and independent of knowing the value of Poisson's ratio. Samples with different diameters of polytetrafluoroethylene (PTFE) were submitted to quasi-static torsion at the same aspect ratio. The aim was to present and validate the use of the technique for a known polymer. The approximate value of 350 MPa of the torsion modulus G was found for PTFE samples. As the values obtained are within the limits found in the literature, the technique can be used to study samples of polymers and other materials. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:42:20Z 2019-10-04T12:42:20Z 2019-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0104-1428.01019 Polimeros-ciencia E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 29, n. 3, 8 p., 2019. 0104-1428 http://hdl.handle.net/11449/186160 10.1590/0104-1428.01019 S0104-14282019000300401 WOS:000484851300001 S0104-14282019000300401.pdf |
url |
http://dx.doi.org/10.1590/0104-1428.01019 http://hdl.handle.net/11449/186160 |
identifier_str_mv |
Polimeros-ciencia E Tecnologia. Sao Carlos: Assoc Brasil Polimeros, v. 29, n. 3, 8 p., 2019. 0104-1428 10.1590/0104-1428.01019 S0104-14282019000300401 WOS:000484851300001 S0104-14282019000300401.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polimeros-ciencia E Tecnologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 application/pdf |
dc.publisher.none.fl_str_mv |
Assoc Brasil Polimeros |
publisher.none.fl_str_mv |
Assoc Brasil Polimeros |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129226796171264 |