An effective thickness to estimate stresses in laminated glass beams under dynamic loadings. (1st December 2015)

• Record Type: Journal Article
• Authors: Aenlle, Manuel L.; Pelayo, F.; Ismael, G.
• Is Part Of: Composites. Volume 82(2015)
• Page Start: 1
• Page End: 12
• Publication Date: 2015-12-01
• Subjects: A. Layered structures -- B. Vibration -- C. Analytical modelling -- D. Thermal analysis; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2015.08.001
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Finite element models for estimating stresses and displacements in laminated glass elements under dynamic loadings are very time-consuming because (1) many small 3D elements are needed to model accurately all the layers of the sandwich element and (2) the core usually shows a time and temperature dependent behaviour. In the last years, the concept of effective thickness using a quasi-elastic solution has got the attention of the research community because of its simplicity and reasonable level of accuracy achieved in the calculation of laminated glass elements under static loadings. In this paper, a dynamic effective thickness to estimate stresses in laminated glass beams under dynamic loadings in the frequency domain is derived using the correspondence principle. The analytical equations are validated by experimental tests carried out on simply supported and free–free laminated glass beams at different temperatures in the range 20–40 °C.