Effect of Interlayer Mechanical Properties on Quasi-static and Free Vibration Response of Laminated Glass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00323265" target="_blank" >RIV/68407700:21110/18:00323265 - isvavai.cz</a>

Výsledek na webu

<a href="https://journals.open.tudelft.nl/index.php/cgc/article/view/2170" target="_blank" >https://journals.open.tudelft.nl/index.php/cgc/article/view/2170</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7480/cgc.6.2170" target="_blank" >10.7480/cgc.6.2170</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Interlayer Mechanical Properties on Quasi-static and Free Vibration Response of Laminated Glass

Popis výsledku v původním jazyce

Laminated glass fulfills the demands on safety and security in transparent structural elements used in architecture and other fields of engineering. It can be constructed as forced-entry, bullet, or blast resistant. The basic three-layer configuration consists of two glass panes connected with a polymer or ionomer interlayer; the advanced products contain also other layers. The foil ensures shear coupling and provides post-breakage resistance and damping. For the design of laminated glass structures and their analysis, knowledge of mechanical properties of interlayers is essential. In numerical simulations, the interlayer is most typically described by the generalized Maxwell chain - a classical viscoelastic model which can capture the time/temperature-dependent response of polymers under shear. Its parameters can be found for common interlayer types in the literature. However, they differ even for the same material, because of a slightly different content of additives, different test setups, and different data processing procedures. In this contribution, the dependence of the response of a laminated glass element on the material parameters of the polymer interlayer is studied by means of numerical modelling and experiments. Two examples are shown and discussed, i.e., quasi-static analysis of a simplysupported beam and modal analysis of a free-free beam. Numerical predictions are obtained by a layer-wise model based on the finite element method. These predictions are validated against the detailed experimental data. We demonstrate that using the Maxwell model parameters from the literature determined even for the same material type but not for the concrete foil may lead to unrealistic predictions.

Název v anglickém jazyce

Effect of Interlayer Mechanical Properties on Quasi-static and Free Vibration Response of Laminated Glass

Popis výsledku anglicky

Laminated glass fulfills the demands on safety and security in transparent structural elements used in architecture and other fields of engineering. It can be constructed as forced-entry, bullet, or blast resistant. The basic three-layer configuration consists of two glass panes connected with a polymer or ionomer interlayer; the advanced products contain also other layers. The foil ensures shear coupling and provides post-breakage resistance and damping. For the design of laminated glass structures and their analysis, knowledge of mechanical properties of interlayers is essential. In numerical simulations, the interlayer is most typically described by the generalized Maxwell chain - a classical viscoelastic model which can capture the time/temperature-dependent response of polymers under shear. Its parameters can be found for common interlayer types in the literature. However, they differ even for the same material, because of a slightly different content of additives, different test setups, and different data processing procedures. In this contribution, the dependence of the response of a laminated glass element on the material parameters of the polymer interlayer is studied by means of numerical modelling and experiments. Two examples are shown and discussed, i.e., quasi-static analysis of a simplysupported beam and modal analysis of a free-free beam. Numerical predictions are obtained by a layer-wise model based on the finite element method. These predictions are validated against the detailed experimental data. We demonstrate that using the Maxwell model parameters from the literature determined even for the same material type but not for the concrete foil may lead to unrealistic predictions.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA16-14770S" target="_blank" >GA16-14770S: Pokročilé počítačové a experimentální modelování konstrukcí z laminovaného skla zatížených nízkorychlostním rázem</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Challenging Glass 6 - International Conference on the Architectural and Structural Application of Glass

ISBN

978-94-6366-044-0

ISSN

—

e-ISSN

—

Počet stran výsledku

10

Strana od-do

485-494

Název nakladatele

TU Delft

Místo vydání

Delft

Místo konání akce

Delft

Datum konání akce

17. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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