Double-lap shear test on laminated glass specimens under diverse ageing conditions

Centelles, Xavier; Castro, J. Ramon; Cabeza, Luisa F.

doi:10.1016/j.conbuildmat.2020.118784

Cited by 10 publications

(9 citation statements)

References 30 publications

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“…The main test procedures available in the literature are summarized in Table 1, on the basis of the above-mentioned classifications. LG S T I A Four-point creep bending test [30,31] LG S S C M Single-lap shear test [32,33] LG S S I M Double-lap shear test [34,35] LG S S I M Compression shear test [36] LG S S I A…”

Section: Test Methods For Lg Interlayers Characterizationmentioning

confidence: 99%

“…LG S S I M Double-lap shear test [34,35] Although the characteristics of the interlayer itself are very important (e.g., evaluated according to ISO 6721-1), the process of lamination at high pressure/temperature could change the mechanical properties of the material [21,25]. For this reason, to evaluate the shear modulus, which is the most important parameter to assess the structural behavior of LG, laminated specimens should be preferred.…”

Section: Test Methods For Lg Interlayers Characterizationmentioning

confidence: 99%

“…The ASTM D638 [22] and the ISO 6721-1 [23] are standards developed for plastics, and thus do not account for the lamination process. Due to this reason, several researchers [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] have proposed different test methods to assess the mechanical properties of the interlayer in the laminated glass. However, these different procedures are still at the research level and have not been standardized.…”

Section: Introductionmentioning

confidence: 99%

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Review of the Main Mechanical Testing Methods for Interlayer Characterization in Laminated Glass

2023

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In the last decades, the use of structural glass has increased exponentially. The reliability of brittle structural glass elements is considerably improved if laminated glass elements are chosen because, in this case, a redistribution of internal forces is permitted once a limited breakage occurs. Thus, instead of monolithic glass, composite materials consisting of two or more glass plies bonded together using a polymeric film as an interlayer are used. In the event of glass failure, because of the chemical bond between the different materials, the adhesion to the interlayer prevents glass fragments from scattering. To design structural elements, the definition of the mechanical features of the interlayer is necessary. However, several standards and techniques can be applied, considering the characterization of either the interlayer itself or the laminated glass. The paper reviews the main existing methods and focuses on the standard suggested by the CEN/TS 19100:2021, analyzing in detail the effect of the different parameters involved. A numerical model is presented to account for the effect of the stress level, glass, and interlayer thickness. Although the standard leaves a certain degree of freedom in choosing those parameters, in some cases the results can differ.

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Section: Test Methods For Lg Interlayers Characterizationmentioning

confidence: 99%

Section: Test Methods For Lg Interlayers Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of the Main Mechanical Testing Methods for Interlayer Characterization in Laminated Glass

2023

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“…Among others, for example, it is known that temperature (but also humidity, loading time, and strain rate, etc.) can have severe degradation effects on the actual mechanical capacities and thus on the structural performance of bonded elements [19][20][21][22].…”

Section: Influencing Parameters For Mechanical Characterization Of Petmentioning

confidence: 99%

Multistep Experimental Calibration of Mechanical Parameters for Modelling Multilayer Antishatter Safety Films in Structural Glass Protection

Bedon

Mattei

2021

Mathematical Problems in Engineering

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Glass material is largely used in buildings and facilities due to various motivations. Besides, glass still represents a vulnerable component for building occupants. Careful attention is required especially for glass elements that may be subjected to extreme design loads, such as impact, vibrations, etc. Among various approaches and techniques to prevent danger for people in case of glass breakage, multilayer antishatter safety films (ASFs) are commercially available for the retrofit of existing monolithic glass members. In the present research study, a multistep experimental program is presented to obtain the characterization of key input mechanical parameters that are required for the numerical analysis of glass elements protected by ASFs. Relevant characteristics are derived for the definition of an equivalent material and monolithic tape able to reproduce the ASF experimental outcomes. On the side of experiments, artificially aged specimens (healing process) are investigated. A major advantage is taken from small-scale peel and tensile tests on ASF samples, as well as Operational Modal Analysis (OMA) techniques for nondestructive vibration measurements on preliminary fractured specimens of ASF-bonded glass elements. Efficient Finite Element (FE) numerical models calibrated with the support of experimental data and Cohesive Zone Modelling (CZM) techniques are presented for discussion of comparative results, giving evidence of rather good estimates and possible extension of the multistep experimental procedure.

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“…It is well known that both the adhesives and adhesive interfaces are highly sensitive to weathering actions. For example, PVB material and its adhesion to glass were found to have significant strength degradation and even delamination under moisture [23,36]. Delamination of other composites using glass, plastic and polymeric interlayer in service condition was also reported, in particular, under moisture and thermal cycles [37].…”

Section: Introductionmentioning

confidence: 99%

Local bridging effect of fractured laminated glass with EVA based hybrid interlayers under weathering actions

Yang

Wang

et al. 2022

Construction and Building Materials

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Double-lap shear test on laminated glass specimens under diverse ageing conditions

Cited by 10 publications

References 30 publications

Review of the Main Mechanical Testing Methods for Interlayer Characterization in Laminated Glass

Review of the Main Mechanical Testing Methods for Interlayer Characterization in Laminated Glass

Multistep Experimental Calibration of Mechanical Parameters for Modelling Multilayer Antishatter Safety Films in Structural Glass Protection

Local bridging effect of fractured laminated glass with EVA based hybrid interlayers under weathering actions

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