Finite element models for laminated glass units with viscoelastic interlayer for dynamic analysis

Janda, Tomáš; Zemanová, Alena; Zeman, Jan; Šejnoha, Michal

doi:10.2495/hpsm160221

Cited by 4 publications

(2 citation statements)

References 4 publications

(4 reference statements)

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“…(3) in the solution of a certain inverse problem. Details can be found in [2,3]. For illustration, the identified time-dependent shear moduli are plotted in Fig.…”

Section: G G *mentioning

confidence: 99%

On pre- and post-fracture behaviour of laminated glass under bending

Zemanová¹,

Schmidt²,

Šejnoha³

2020

Int. J. CMEM

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The present study is focused on the application of phase-field modelling techniques to fracture simulation in laminated glass samples under bending. A damage model using a phase-field formulation of fracture is introduced and applied to three-layer laminated glass samples. The identification of material parameters of polymer foils and glass is also provided, based on a combined experimental and numerical analysis. Specifically, the results of small scale testing and the calibration of the constitutive models of polymer interlayers are discussed in connection to ethylen-vinyl acetate and polyvinyl butyral foils. The statistical data obtained by the evaluation of tensile strength of glass samples are used for the formulation of the tensile stress criterion. Therefore, a generalisation of the energetic formulation of phase-field models towards the stress-based criterion is employed here to simulate the fracture behaviour of laminated glass. The experimentally measured data are compared with the numerically derived response using the extreme values of tensile strength obtained. Then, the fracture response is analysed for one sample to support the proposed computational model and material parameters.

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“…(3) in the solution of a certain inverse problem. Details can be found in [2,3]. For illustration, the identified time-dependent shear moduli are plotted in Fig.…”

Section: G G *mentioning

confidence: 99%

On pre- and post-fracture behaviour of laminated glass under bending

Zemanová¹,

Schmidt²,

Šejnoha³

2020

Int. J. CMEM

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“…The measured complex moduli were then compared with those provided by eqn (2) together with eqn (3) in the solution of a certain inverse problem. Details can be found in [4] and [5].…”

Section: Dynamic Torsion Tests On Polymer Foilsmentioning

confidence: 99%

Evaluation of Tensile Strength of Glass From Combined Experimental and Numerical Analysis of Laminated Glass

Zemanová

Schmidt

Šejnoha

2018

WIT Transactions on the Built Environment

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This paper is concerned with the evaluation of tensile strength of annealed and heat-strengthened glass from a given set of samples. The values of tensile stresses at failure corresponding to the strengths of samples are determined from experimentally measured strains and also computed numerically using the known value of the critical load and loading scenario only. In contrast to common testing procedures performed on monolithic glass samples, laminated glass specimens are analyzed in our study to account for a potential impact of the process of fabrication. The data sets from two types of experiments are examined. In particular, the measured response from four-point bending tests is complemented with that for simply-supported laminated glass samples loaded in bending by a uniformly distributed pressure. The experimentally measured data are compared with those derived numerically to support the proposed computational model. In this regard, the results of small scale testing needed in calibrating the constitutive model of the polymer interlayer are also discussed in connection to ethylen-vinyl acetate and polyvinyl butyral foils.

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