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Repositorio de la Universidad de Oviedo > Producción Bibliográfica de UniOvi: RECOPILA > Artículos >

Use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10651/43207

Título : Study of the Time-Temperature-Dependent behaviour of PVB: application to laminated glass elements
Autor(es) y otros: Fernández Fernández, Pelayo
Lamela Rey, María Jesús
Muñiz Calvente, Miguel
López Aenlle, Manuel
Álvarez Vázquez, Adrián
Fernández Canteli, Alfonso Carlos
Fecha de publicación : 2017
Editorial : Elsevier
Versión del editor: https://doi.org/10.1016/j.tws.2017.06.030
Citación : Thin-Walled Structures, 119, p. 324–331(2017); doi:10.1016/j.tws.2017.06.030
Descripción física: p. 324–331
Resumen : The mechanical behavior of laminated glass elements is governed by material properties of the interlayer, the Polyvinyl Butiral (PVB) being the most used interlayer material in these elements. PVB is a viscoelastic material whose mechanical properties (Young’s modulus, shear modulus, etc.) depend mainly on the load application time and the temperature. Thus an adequate mechanical characterization of the PVB must be performed in order to predict the response of laminated glass elements with a good accuracy In this work, PVB specimens were subjected to static relaxation tests and to dynamic experimental tests (frequency domain) at different temperatures from -〖15〗^o C to 〖50〗^o C using a DMTA equipment. Then the curves at different temperatures were related using the William-Landel-Ferry (WLF) Time-Temperature Superposition (TTS) model to obtain the mastercurve of both the time and frequency domain Young’s moduli of the PVB. Finally, a viscoelastic Prony based model was fitted to the experimental data and used, afterwards, to simulate numerically the static and dynamic behaviour of different laminated glass elements at different temperatures. The numerical simulations were compared with the static and dynamic experimental results achieving a good accuracy in both the static deflections and the natural frequencies. With respect to the damping, the discrepancies are less than 22%.
Fecha fin embargo: 2018-10-30
URI : http://hdl.handle.net/10651/43207
ISSN : 0263-8231
Aparece en las colecciones: Construcción e Ingeniería de Fabricación
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