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Abstract:

Data on the damping spectra of commercial poly(methyl methacrylate) (PMMA) are reported, both at low (of the order of 1 Hz) and at intermediate (of the order of 50 Hz) frequencies. It is shown that the damping does not only depend strongly on temperature and frequencies. It is shown that the damping does not only depend strongly on temperature and frequency but also on the strain amplitude applied to the specimen. In other words, the dynamic mechanical behavior of PMMA is nonlinear and cannot be described in terms of linear viscoelasticity. Finally, some aging effects in the damping, measured at low frequencies, are also reported. © 1995 John Wiley & Sons, Inc. Copyright © 1995 John Wiley & Sons, Inc.

Registro:

Documento: Artículo
Título:Nonlinear mechanical spectrometry of poly(methyl methacrylate)
Autor:Povolo, F.; Lambri, O.A.
Filiación:Comisión Nacional de Energía Atómica, Dto. de Materiales, A. del Libertador 8250, Buenos Aires, Argentina
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata, Argentina
Universidad de Buenos Aires, Facultad de Ciencias Exáctas Y Naturales, Dto. de Fisica, Ciudad Universitaria, Pabellón 1, Buenos Aires, Argentina
Palabras clave:Aging of materials; Damping; Frequencies; Numerical methods; Spectrometry; Strain; Thermal effects; Nonlinear mechanical spectrometry; Nonlinearity; Ree-Eyring equation; Strain amplitude; Polymethyl methacrylates
Año:1995
Volumen:56
Número:2
Página de inicio:161
Página de fin:168
DOI: http://dx.doi.org/10.1002/app.1995.070560206
Título revista:Journal of Applied Polymer Science
Título revista abreviado:J. Appl. Polym. Sci.
ISSN:00218995
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00218995_v56_n2_p161_Povolo

Referencias:

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Citas:

---------- APA ----------
Povolo, F. & Lambri, O.A. (1995) . Nonlinear mechanical spectrometry of poly(methyl methacrylate). Journal of Applied Polymer Science, 56(2), 161-168.
http://dx.doi.org/10.1002/app.1995.070560206
---------- CHICAGO ----------
Povolo, F., Lambri, O.A. "Nonlinear mechanical spectrometry of poly(methyl methacrylate)" . Journal of Applied Polymer Science 56, no. 2 (1995) : 161-168.
http://dx.doi.org/10.1002/app.1995.070560206
---------- MLA ----------
Povolo, F., Lambri, O.A. "Nonlinear mechanical spectrometry of poly(methyl methacrylate)" . Journal of Applied Polymer Science, vol. 56, no. 2, 1995, pp. 161-168.
http://dx.doi.org/10.1002/app.1995.070560206
---------- VANCOUVER ----------
Povolo, F., Lambri, O.A. Nonlinear mechanical spectrometry of poly(methyl methacrylate). J. Appl. Polym. Sci. 1995;56(2):161-168.
http://dx.doi.org/10.1002/app.1995.070560206