Amplitude dependent damping in vinyl polymers

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The damping behaviour of several vinyl polymers-poly(methyl methacrylate) (PMMA), poly(vinyl chloride) (PVC), polystyrene (PS) and impact polystyrene (PSi)-was studied both as a funtion of temperature and strain amplitude. The measurements were performed from room temperature up to the glass transit...

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Autores principales:	Povolo, Francisco, Goyanes, Silvia Nair
Publicado:	1996
Materias:	Damping Internal friction Mechanical testing Polymethyl methacrylates Polystyrenes Polyvinyl chlorides Strain rate Stress relaxation Stresses Temperature Activation volume Impact polystyrene Strain amplitude Vinyl polymer Vinyl resins
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11554339_v6_n8_pC8_Povolo http://hdl.handle.net/20.500.12110/paper_11554339_v6_n8_pC8_Povolo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_11554339_v6_n8_pC8_Povolo
record_format	dspace
spelling	paper:paper_11554339_v6_n8_pC8_Povolo2025-07-30T18:45:09Z Amplitude dependent damping in vinyl polymers Povolo, Francisco Goyanes, Silvia Nair Damping Internal friction Mechanical testing Polymethyl methacrylates Polystyrenes Polyvinyl chlorides Strain rate Stress relaxation Stresses Temperature Activation volume Impact polystyrene Strain amplitude Vinyl polymer Vinyl resins The damping behaviour of several vinyl polymers-poly(methyl methacrylate) (PMMA), poly(vinyl chloride) (PVC), polystyrene (PS) and impact polystyrene (PSi)-was studied both as a funtion of temperature and strain amplitude. The measurements were performed from room temperature up to the glass transition temperature and shows amplitude dependence at frequencies of the order of 50 kHz. The data are interpreted in terms of a hyperbolic sine stress dependence of the strain rate, including an effective stress. The activation volume was found to depend on temperature, with values much larger than those given by the usual mechanical tests (tensile, creep and stress relaxation). It is suggested that the nonlinear effects are related to the a relaxation in these materials, since the activation enthalpy is quite similar to the one obtained from the maxima of this relaxation. Fil:Povolo, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11554339_v6_n8_pC8_Povolo http://hdl.handle.net/20.500.12110/paper_11554339_v6_n8_pC8_Povolo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Damping Internal friction Mechanical testing Polymethyl methacrylates Polystyrenes Polyvinyl chlorides Strain rate Stress relaxation Stresses Temperature Activation volume Impact polystyrene Strain amplitude Vinyl polymer Vinyl resins
spellingShingle	Damping Internal friction Mechanical testing Polymethyl methacrylates Polystyrenes Polyvinyl chlorides Strain rate Stress relaxation Stresses Temperature Activation volume Impact polystyrene Strain amplitude Vinyl polymer Vinyl resins Povolo, Francisco Goyanes, Silvia Nair Amplitude dependent damping in vinyl polymers
topic_facet	Damping Internal friction Mechanical testing Polymethyl methacrylates Polystyrenes Polyvinyl chlorides Strain rate Stress relaxation Stresses Temperature Activation volume Impact polystyrene Strain amplitude Vinyl polymer Vinyl resins
description	The damping behaviour of several vinyl polymers-poly(methyl methacrylate) (PMMA), poly(vinyl chloride) (PVC), polystyrene (PS) and impact polystyrene (PSi)-was studied both as a funtion of temperature and strain amplitude. The measurements were performed from room temperature up to the glass transition temperature and shows amplitude dependence at frequencies of the order of 50 kHz. The data are interpreted in terms of a hyperbolic sine stress dependence of the strain rate, including an effective stress. The activation volume was found to depend on temperature, with values much larger than those given by the usual mechanical tests (tensile, creep and stress relaxation). It is suggested that the nonlinear effects are related to the a relaxation in these materials, since the activation enthalpy is quite similar to the one obtained from the maxima of this relaxation.
author	Povolo, Francisco Goyanes, Silvia Nair
author_facet	Povolo, Francisco Goyanes, Silvia Nair
author_sort	Povolo, Francisco
title	Amplitude dependent damping in vinyl polymers
title_short	Amplitude dependent damping in vinyl polymers
title_full	Amplitude dependent damping in vinyl polymers
title_fullStr	Amplitude dependent damping in vinyl polymers
title_full_unstemmed	Amplitude dependent damping in vinyl polymers
title_sort	amplitude dependent damping in vinyl polymers
publishDate	1996
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11554339_v6_n8_pC8_Povolo http://hdl.handle.net/20.500.12110/paper_11554339_v6_n8_pC8_Povolo
work_keys_str_mv	AT povolofrancisco amplitudedependentdampinginvinylpolymers AT goyanessilvianair amplitudedependentdampinginvinylpolymers
_version_	1840326625051279360

Amplitude dependent damping in vinyl polymers

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