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Abstract:

Some results on the amplitude-dependent dynamical behavior of poly(methyl methacrylate) are presented. Both the loss tangent (internal friction) and the storage Young’s modulus are strain-amplitude-dependent, when measured between room temperature and approximately 400 K, at a frequency of the order of 50 kHz. The data are interpreted in terms of an hyperbolic sine stress dependence of the strain rate, including an effective stress. The activation volume was found to depend on the temperature, with values much larger than those obtained through the usual mechanical tests (tensile, creep, or stress relaxation). © 1994, The Society of Polymer Science, Japan. All rights reserved.

Registro:

Documento: Artículo
Título:Amplitude-dependent dynamical behavior of poly(methyl methacrylate)
Autor:Povolo, F.; Goyanes, S.N.
Filiación:Universidad de Buenos Aires, Departamento de Física, Ciudad Universitaria, Pabellón 1, Buenos Aires, 1428, Argentina
Comisión Nacional de Energía Atómica, Departamento de Materiales, Ciudad Universitaria, Del Libertador 8250, Buenos Aires, 1429, Argentina
Palabras clave:Dynamic mechanical behavior; Loss tangent; Poly(methyl methacrylate); Storage young’s modulus; Strain amplitude-dependent damping and modulus; Damping; Internal friction; Mechanical testing; Strain; Stresses; Thermal effects; Viscoelasticity; Dynamic mechanical testing; Hyperbolic sine stress; Loss tangent; Storage Young's modulus; Strain amplitude; Strain rate; Polymethyl methacrylates
Año:1994
Volumen:26
Número:9
Página de inicio:1054
Página de fin:1062
DOI: http://dx.doi.org/10.1295/polymj.26.1054
Título revista:Polymer Journal
Título revista abreviado:Polym J
ISSN:00323896
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00323896_v26_n9_p1054_Povolo

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Citas:

---------- APA ----------
Povolo, F. & Goyanes, S.N. (1994) . Amplitude-dependent dynamical behavior of poly(methyl methacrylate). Polymer Journal, 26(9), 1054-1062.
http://dx.doi.org/10.1295/polymj.26.1054
---------- CHICAGO ----------
Povolo, F., Goyanes, S.N. "Amplitude-dependent dynamical behavior of poly(methyl methacrylate)" . Polymer Journal 26, no. 9 (1994) : 1054-1062.
http://dx.doi.org/10.1295/polymj.26.1054
---------- MLA ----------
Povolo, F., Goyanes, S.N. "Amplitude-dependent dynamical behavior of poly(methyl methacrylate)" . Polymer Journal, vol. 26, no. 9, 1994, pp. 1054-1062.
http://dx.doi.org/10.1295/polymj.26.1054
---------- VANCOUVER ----------
Povolo, F., Goyanes, S.N. Amplitude-dependent dynamical behavior of poly(methyl methacrylate). Polym J. 1994;26(9):1054-1062.
http://dx.doi.org/10.1295/polymj.26.1054