Mechanical characterization of polyvinil butyral from static and modal tests on laminated glass beams

Aenlle, Manuel López; Noriega, Á.; Pelayo, F.

doi:10.1016/j.compositesb.2019.03.077

Cited by 28 publications

(20 citation statements)

References 18 publications

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“…The isotropic glass can be illustrated with adequate precision owing to the linear-elastic stress-strain behaviour. In contrast, there is the complex, primarily non-linear behaviour of the polymer interlayers, which is the subject of numerous investigations (Schneider et al 2016;Kraus et al 2019;López-Aenlle et al 2019;Schuster 2021). For this reason, innovations in terms of experimental investigations for capturing the deformation values are helpful when trying to improve the illustration of the behaviour of polymer interlayers, particularly in the laminated state.…”

Section: Generalmentioning

confidence: 99%

Determination and evaluation of the interlaminar shear modulus of polyvinyl butyral using fibre optic sensors

Weimar

Hammer

2022

Glass Struct Eng

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The method of fibre optic strain measurement based on Rayleigh signal analysis enables the detection of the deformation behaviour of laminated glass and the modelling of its load-bearing characteristics. The measurement system is already calibrated for glass surfaces by studies of Chair of Building Structure at Universität Siegen. In addition to discretely measuring systems, such as strain gauges, the distributed measurement system is particularly suitable for the determination of the interlaminar shear modulus. The sensors used in bending tests on laminated glass supplement the deformation measurements taken with strain gauges and inductive displacement sensors. The study describes the results of the shear modulus of viscoelastic interlayers made of polyvinyl butyral and provides the basis to define and evaluate a model for the finite element analysis.

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Section: Generalmentioning

confidence: 99%

Determination and evaluation of the interlaminar shear modulus of polyvinyl butyral using fibre optic sensors

Weimar

Hammer

2022

Glass Struct Eng

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“…Existing techniques for damping measurement using logarithmic decrement decreasing free vibrations of beams are reported [60,[78][79][80][81][82]. The test configuration is important: several aspects are discussed in the literature, such as the location of the excitation, boundary conditions, adhesion of the accelerometers, and interference of the measurement [70,77,78,83,84]. Specific techniques for composite structures are proposed for beams on complex shapes [85][86][87][88].…”

Section: Low To Mid-frequency Characterization: Modal Analysismentioning

confidence: 99%

Damping behavior of plant fiber composites: A review

Liu

Butaud

Placet

et al. 2021

Composite Structures

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“…As far as the interlayer composition and the test method both modify; however, different mechanical properties can be derived for a given interlayer material [31]. The study reported in [32] also emphasized that the mechanical properties of the interlayer samples (i.e., material test), or interlayer foils belonging to small portions of LG sections (i.e., section test), can result in markedly different stiffness estimates, due to variation of the actual boundary conditions. Finally, for in-service glass structures, it is generally recognized that the degradation of interlayers can affect several material features, including the shear stiffness, but also the adhesion properties, and other thermo-mechanical parameters that could indirectly affect the overall structural performance of a given LG section (see [33][34][35]).…”

Section: Beammentioning

confidence: 99%

Issues on the Vibration Analysis of In-Service Laminated Glass Structures: Analytical, Experimental and Numerical Investigations on Delaminated Beams

Bedon

2019

Applied Sciences

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Load-bearing laminated glass (LG) elements take the form of simple members in buildings (i.e., columns, beams, and plates) or realize stand-alone assemblies, where glass and other traditional constructional materials can interact. Among several relevant aspects, the dynamic response of LG structures requires dedicated methods of analysis, towards the fulfilment of safe design purposes. A combination of multiple aspects must be taken into account for dynamic calculations of even simple LG elements when compared to static conditions, first of all the sensitivity of common interlayers to the imposed vibration frequency. The challenge is even more complex for the vibration serviceability assessment of in-service LG structures, where the degradation of materials and possible delamination effects could manifest, hence resulting in structural performances that can markedly differ from early-design conditions. Major uncertainties can be associated to the actual mechanical characterization of materials in use (especially the viscoelastic interlayers), as well as the contribution of restraints (as compared to ideal boundaries) and the possible degradation of the bonding layers (i.e., delaminations). All of these aspects are examined in the paper, with the support of extended analytical calculations, on-site experimental measurements, and parametric Finite Element (FE) numerical analyses. When compared to literature efforts accounting for ideal boundaries only, an analytical formulation is proposed to include the effects of flexible restraints in the dynamic performance of general (double) LG beams. Special care is also spent for the presence of possible delaminations, including size and position effects. In the latter case, existing formulations for composite laminates are preliminarily adapted to LG beams. Their reliability and accuracy is assessed with the support of test predictions and parametric FE simulations.

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Mechanical characterization of polyvinil butyral from static and modal tests on laminated glass beams

Cited by 28 publications

References 18 publications

Determination and evaluation of the interlaminar shear modulus of polyvinyl butyral using fibre optic sensors

Determination and evaluation of the interlaminar shear modulus of polyvinyl butyral using fibre optic sensors

Damping behavior of plant fiber composites: A review

Issues on the Vibration Analysis of In-Service Laminated Glass Structures: Analytical, Experimental and Numerical Investigations on Delaminated Beams

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