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Blast response of laminated glass panels: a critical review of analysis and design methods

Accepted version
Peer-reviewed

Change log

Abstract

jats:p Laminated glass panels are often used to enhance the blast resilience of buildings by replacing the inherently brittle, monolithic glass that has historically been used in building façades. These composite ductile panels offer superior blast resistance and result in reduced glass-related injuries due to the interlayer's ability to provide residual resistance following fracture of the glass layers and to retain glass fragments. The various analysis methods that have been developed to support the blast design of laminated glass panels and reduce the need for expensive blast testing are reviewed in this paper. The focus is on panels with polyvinyl butyral, as this is the most commonly used interlayer in building façades. The methods identified are categorised into empirical design guidance, analytical models, finite-element analysis and equivalent single-degree-of-freedom methods, thereby enabling a comparison of the modelling principles adopted and the material properties assumed within the different categories. This is informed by first presenting a brief overview of the material properties of laminated glass under blast conditions. The consistency of the underlying structural mechanics principles is discussed by comparing the methodologies across the different categories. Finally, the ease of application is considered, highlighting the methods that are often preferred by practitioners. </jats:p>

Description

Keywords

40 Engineering, 4016 Materials Engineering

Journal Title

Proceedings of the Institution of Civil Engineers: Structures and Buildings

Conference Name

Journal ISSN

0965-0911
1751-7702

Volume Title

Publisher

Thomas Telford Ltd.

Rights

All rights reserved
Sponsorship
EPSRC (1817334)
Engineering and Physical Sciences Research Council (EP/L016095/1)
Institution Of Civil Engineers (1901)
The first author gratefully acknowledges the Engineering and Physical Sciences Research Council (EPSRC) for funding this research through the EPSRC Centre for Doctoral Training in Future Infrastructure and Built Environment (FIBE CDT) at the University of Cambridge (EPSRC grant reference number EP/L016095/1). The contribution of the Institution of Civil Engineers, through the ICE Research and Development Enabling Fund, is also gratefully acknowledged.