Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer

Dynamic mechanical analysis (DMA) is a thermo-analytical technique that is widely used as a part of polymer characterization. One of the most common tests consists of measuring viscoelastic properties as a function of temperature while subjecting the sample to controlled heating rates. In that tests...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Carlos Gracia-Fernández, Ana Álvarez-García, Silvia Gómez-Barreiro, Jorge López-Beceiro, Ramón Artiaga
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Dynamic mechanical analysis DMA 3-Point bending Temperature distribution temperature gradient Simulation Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/89e347e76d884a8ea1496df3be125a39
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:89e347e76d884a8ea1496df3be125a39
record_format	dspace
spelling	oai:doaj.org-article:89e347e76d884a8ea1496df3be125a392021-11-24T04:23:59ZTemperature simulation of three-point bending geometry in a dynamic mechanical analyzer0142-941810.1016/j.polymertesting.2020.106895https://doaj.org/article/89e347e76d884a8ea1496df3be125a392021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321243https://doaj.org/toc/0142-9418Dynamic mechanical analysis (DMA) is a thermo-analytical technique that is widely used as a part of polymer characterization. One of the most common tests consists of measuring viscoelastic properties as a function of temperature while subjecting the sample to controlled heating rates. In that tests, due to sample and instrument geometry and sample size, it is not possible to measure the temperature in all parts of the sample. As a result, the gradient of temperatures between different parts of the sample is unknown. Thus, an accurate estimation of the sample temperature in all its parts and of the temperature gradients between different parts are crucial for setting up experimental conditions and establishing confidence temperature ranges to better interpret the test results. In the present work, a simulation study is performed through the Comsol ™ software, to estimate the temperature distribution of samples of different density and heat capacity that are located inside a typical DMA furnace, which is subjected to different heating rates. The furnace has two gas inlets and three outlets and the sample is attached through standard 3-point bending fixtures. The results show that some of the temperature gradients produced in the sample high enough to significantly affect the viscoelastic response.Carlos Gracia-FernándezAna Álvarez-GarcíaSilvia Gómez-BarreiroJorge López-BeceiroRamón ArtiagaElsevierarticleDynamic mechanical analysisDMA3-Point bendingTemperature distribution temperature gradientSimulationPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106895- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Dynamic mechanical analysis DMA 3-Point bending Temperature distribution temperature gradient Simulation Polymers and polymer manufacture TP1080-1185
spellingShingle	Dynamic mechanical analysis DMA 3-Point bending Temperature distribution temperature gradient Simulation Polymers and polymer manufacture TP1080-1185 Carlos Gracia-Fernández Ana Álvarez-García Silvia Gómez-Barreiro Jorge López-Beceiro Ramón Artiaga Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
description	Dynamic mechanical analysis (DMA) is a thermo-analytical technique that is widely used as a part of polymer characterization. One of the most common tests consists of measuring viscoelastic properties as a function of temperature while subjecting the sample to controlled heating rates. In that tests, due to sample and instrument geometry and sample size, it is not possible to measure the temperature in all parts of the sample. As a result, the gradient of temperatures between different parts of the sample is unknown. Thus, an accurate estimation of the sample temperature in all its parts and of the temperature gradients between different parts are crucial for setting up experimental conditions and establishing confidence temperature ranges to better interpret the test results. In the present work, a simulation study is performed through the Comsol ™ software, to estimate the temperature distribution of samples of different density and heat capacity that are located inside a typical DMA furnace, which is subjected to different heating rates. The furnace has two gas inlets and three outlets and the sample is attached through standard 3-point bending fixtures. The results show that some of the temperature gradients produced in the sample high enough to significantly affect the viscoelastic response.
format	article
author	Carlos Gracia-Fernández Ana Álvarez-García Silvia Gómez-Barreiro Jorge López-Beceiro Ramón Artiaga
author_facet	Carlos Gracia-Fernández Ana Álvarez-García Silvia Gómez-Barreiro Jorge López-Beceiro Ramón Artiaga
author_sort	Carlos Gracia-Fernández
title	Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
title_short	Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
title_full	Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
title_fullStr	Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
title_full_unstemmed	Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
title_sort	temperature simulation of three-point bending geometry in a dynamic mechanical analyzer
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/89e347e76d884a8ea1496df3be125a39
work_keys_str_mv	AT carlosgraciafernandez temperaturesimulationofthreepointbendinggeometryinadynamicmechanicalanalyzer AT anaalvarezgarcia temperaturesimulationofthreepointbendinggeometryinadynamicmechanicalanalyzer AT silviagomezbarreiro temperaturesimulationofthreepointbendinggeometryinadynamicmechanicalanalyzer AT jorgelopezbeceiro temperaturesimulationofthreepointbendinggeometryinadynamicmechanicalanalyzer AT ramonartiaga temperaturesimulationofthreepointbendinggeometryinadynamicmechanicalanalyzer
_version_	1718416045594640384

Temperature simulation of three-point bending geometry in a dynamic mechanical analyzer

Ejemplares similares