Freely hanging multi-layer laminated glass subjected to near-field blast

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00376462" target="_blank" >RIV/68407700:21110/24:00376462 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/s40940-024-00275-y" target="_blank" >https://doi.org/10.1007/s40940-024-00275-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s40940-024-00275-y" target="_blank" >10.1007/s40940-024-00275-y</a>

Result language

angličtina

Original language name

Freely hanging multi-layer laminated glass subjected to near-field blast

Original language description

Laminated glass, known for its enhanced strength and safety features, is an advanced building material composed of multiple layers bonded together, providing superior durability and resilience compared to traditional float glass. This study investigates the dynamic response of freely hanging laminated glass to near-field blast loading. Our aim is to introduce a setup for testing unsupported specimens under blast conditions, facilitating the collection of data for future application. Experimental trials were conducted, examining two laminated glass configurations: a 5-layer setup and a 7-layer setup. Panels were designed using the sacrificial glass ply concept, comprising alternating layers of glass panels and polyvinyl butyral interlayers. The experimental methodology involved two types of explosives: semtex 1A and granulated TNT. The samples were suspended on wire rope slings to eliminate support influences, enabling comparison with numerical models while reducing the number of unknown parameters from boundary conditions in the simulations. Samples were incrementally loaded with explosive weights to estimate the minimum impact energy required for glass failure. The overpressure from the blast was recorded and the response of the panels in terms of the acceleration, as well as crack formation and propagation, was studied. Accelerometers were affixed to each panel, whereas the crack development was examined after each test. The experimental results were compared to a numerical model. The study explores cracks based on numerous parameters like number of blasts and glass configuration. It also shows how different parameters impact panel velocity under blast and how damage affects their natural frequency. Comparison with numerical models shows that the setup accurately replicates the absence of supports.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA22-15553S" target="_blank" >GA22-15553S: Experimental study and advanced modelling of multilayer glass panels exposed to explosive blasts and ballistic impact</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Glass Structures & Engineering

ISSN

2363-5142

e-ISSN

2363-5150

Volume of the periodical

9

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

25

Pages from-to

499-523

UT code for WoS article

001294919700001

EID of the result in the Scopus database

2-s2.0-85201627198