The influence of interlayer properties on the response of laminated glass to low-velocity hard-object impact

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00354506" target="_blank" >RIV/68407700:21110/22:00354506 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.ijimpeng.2021.104036" target="_blank" >https://doi.org/10.1016/j.ijimpeng.2021.104036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijimpeng.2021.104036" target="_blank" >10.1016/j.ijimpeng.2021.104036</a>

Result language

angličtina

Original language name

The influence of interlayer properties on the response of laminated glass to low-velocity hard-object impact

Original language description

In this combined experimental-numerical study, we intend to clarify how the interlayer properties of laminated glass plates affect their response to the low-velocity impact of a hard object. To this end, we tested twelve large laminated glass plates with polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) interlayers combined with two annealed or heat-strengthened soda-lime-silica glass layers-three testing samples for each combination. In laboratory impact tests, both the laminated glass plate and the impactor were suspended on thin steel wire ropes to minimise the effects of boundary conditions; the velocities of the impactor and the resultant contact force were increased in repeated tests until the glass fractured. Because of the large scatter of fracture strengths, we derived the contact force for all non-destructive and destructive tests using the motion of the impactor and analysed how the contact force evolved. The laboratory impact tests also provided a dataset for validation of numerical simulations that reliably predicted the velocities at measured points and contact forces for both kinds of polymer interlayer foils, thereby validating the viscoelastic parameters of polymers determined in our previous experimental study. Using the validated numerical model, we analysed how the type of interlayer polymer material influences the impact response of laminated glass in terms of contact force and stresses and in relation to surrounding temperature conditions and impactor mass and velocity. Finally, we approximated time/temperaturedependent foil as being an elastic material with different values of constant shear moduli. For laminated glass plates containing PVB, such approximation remained valid only at low temperatures and responses could be estimated using the temperature-independent initial shear modulus. For simulations with EVA-based laminated glass plates, the elastic model with the shear modulus for prescribed temperatures and load durations provided

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/GA19-15326S" target="_blank" >GA19-15326S: Design and advanced modeling of forced-entry and bullet resistant glass structures</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

International Journal of Impact Engineering

ISSN

0734-743X

e-ISSN

1879-3509

Volume of the periodical

159

Issue of the periodical within the volume

104036

Country of publishing house

GB - UNITED KINGDOM

Number of pages

25

Pages from-to

1-25

UT code for WoS article

000718242900001

EID of the result in the Scopus database

2-s2.0-85117795460