PVB mechanical constants characterization in laminated glasses using low frequency ultrasound

To predict the behaviour of a partition made of laminated glasses, it's necessary to know the parameters of the layers composing it. These types of devices are composed by monolithic glass and an intermediate muffling layer usually made of PVB. In this study, we present a method to find the mec...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2008-05, Vol.123 (5_Supplement), p.3233-3233
Main Authors: Ramis Soriano, Jaime, Frances Monllor, Jorge, Alba Fernandez, Jesús, Segovia Eulogio, Enrique E., Vera Guarinos, Jenaro
Format: Article
Language:English
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Summary:To predict the behaviour of a partition made of laminated glasses, it's necessary to know the parameters of the layers composing it. These types of devices are composed by monolithic glass and an intermediate muffling layer usually made of PVB. In this study, we present a method to find the mechanical constants of PVB in laminated glasses. Mechanical constants characterization in these materials is studied using a model-based inverse problem and the data obtained from an ultrasonic transmission setup: a numerical simulation of the system is proposed using a lineal finite elements model of the ultrasonic propagation on the multilayered solid. Parameters are obtained by minimizing divergences between experimental and numerically predicted waveform.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.2933467