Experimental study on failure mechanism of point-supported tempered glass panels under fire conditions

Yin, Fanglong; Liu, Meiyu; Bai, Yin; Zhai, Jianlei; Zhang, Youzhen; Liu, Yang

doi:10.1016/j.istruc.2021.01.019

Cited by 3 publications

(1 citation statement)

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“…Owing to the spread of glass structures and non-structural elements [7][8][9][10][11][12][13][14][15][16], many new interlayer materials have been developed and patented to improve the overall behavior, since the interlayer properties affect the performances at different limit states and under different temperature and load duration.…”

Section: Introductionmentioning

confidence: 99%

Review of the Main Mechanical Testing Methods for Interlayer Characterization in Laminated Glass

2023

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In the last decades, the use of structural glass has increased exponentially. The reliability of brittle structural glass elements is considerably improved if laminated glass elements are chosen because, in this case, a redistribution of internal forces is permitted once a limited breakage occurs. Thus, instead of monolithic glass, composite materials consisting of two or more glass plies bonded together using a polymeric film as an interlayer are used. In the event of glass failure, because of the chemical bond between the different materials, the adhesion to the interlayer prevents glass fragments from scattering. To design structural elements, the definition of the mechanical features of the interlayer is necessary. However, several standards and techniques can be applied, considering the characterization of either the interlayer itself or the laminated glass. The paper reviews the main existing methods and focuses on the standard suggested by the CEN/TS 19100:2021, analyzing in detail the effect of the different parameters involved. A numerical model is presented to account for the effect of the stress level, glass, and interlayer thickness. Although the standard leaves a certain degree of freedom in choosing those parameters, in some cases the results can differ.

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