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

Yang, Jian; Wang, Yige; Wang, Xing-er; Hou, Xiaonan; Zhao, Chunhua; Ye, Jianqiao

doi:10.1016/j.conbuildmat.2021.125595

Cited by 9 publications

(2 citation statements)

References 37 publications

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“…From previous studies, it is known that the interfacial adhesion property of PVB-laminated glass is strongly affected by adhesion strength (Sha et al 1997, Franz et al 2014, loading rate (Sha et al 1997, Ferretti et al 2012, Elzière et al 2017, Fourton et al 2020, and environmental conditions (Samieian et al2018, Samieian et al 2019, Yang et al 2022. In this study, a series of TCT tests were conducted to systematically investigate the adhesion properties of PVB-laminated glass under high loading rates.…”

Section: Introductionmentioning

confidence: 95%

Adhesion Properties of Polyvinyl-Butyral-Laminated Glass under High-Speed Loading

Chen,

Chen

2024

CGC

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Laminated glass has been widely used as safety glass for decades owing to its remarkable post-breakage load-bearing capacity. The post-breakage behaviour of laminated glass is mainly affected by several key factors such as the interlayer property, the adhesion property of the glass-interlayer interface, and the size of glass fragments. In this study, the adhesion properties of polyvinyl butyral (PVB) laminated glass under high-speed uniaxial tension were studied by through-cracked tensile (TCT) tests. Two adhesion grades (i.e., BG-R15 medium adhesion grade and BG-R20 high adhesion grade) PVB-laminated glass and three loading rates (i.e., 0.1m/s, 0.5m/s, and 5m/s) were considered in the tests. The delamination behaviour of PVB-laminated glass was modelled using a numerical cohesive zone model (CZM) to accurately calibrate the interfacial adhesion properties. It was found that BG-R15 PVB-laminated glass exhibits a progressive delamination behaviour under high-speed loading, which results in a stable but low post-cracking force, whereas the delamination was significantly constrained for BG-R20 PVB-laminated glass, which leads to a higher post-cracking force but very poor deformability. The deformability of high adhesion grade laminated glass increases with the crack number since more PVB participates into the stretching of cracked laminated glass. The interfacial adhesion property shows a significant rate effect, with the bonding strength and energy release rate of BG-R15 PVB-laminated glass increase by nearly 25% and 50%, respectively, as the loading rate increases from 0.1m/s to 5m/s. In general, the energy dissipation capacity of the BG-R15 PVB-laminated glass is much higher than that of the BG-R20 PVB-laminated glass. This study can provide a valuable reference for the design of laminated glass under blast or impact loads.

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Section: Introductionmentioning

confidence: 95%

Adhesion Properties of Polyvinyl-Butyral-Laminated Glass under High-Speed Loading

Chen,

Chen

2024

CGC

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“…Laminated safety glass is composed of two pieces of glass by hot pressing with a layer of functional polymer film, which has extensive application potential in aerospace, automobile, military industry, and other fields. − It can avoid glass shattering, keep the integrity of glass, and extend service life in the case of damage by external forces. − It is significant for the application of laminated glass to study the effect of interlayer materials on its mechanical properties. − Cai et al investigated the impact mechanical parameters and crack spatial propagation of laminated glass under different impact velocities . The results expound that different impact velocities require different elastic moduli of sandwich materials, showing the impact resistance demands of low velocity–high flexibility and high velocity–high rigidity.…”

Section: Introductionmentioning

confidence: 99%

High-Strength Polyurethane Composite Film Reinforced by Cellulose Nanocrystals

Zhan,

Bo,

Liu

et al. 2024

ACS Appl. Polym. Mater.

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In recent years, safety laminated glasses have been widely used in construction, transportation, military, and other fields owing to their safety, comfort, and concealment. In this work, a cellulose nanocrystal was synthesized and blended in a polyurethane (PU) elastomer. Based on this, an aliphatic PU composite (CPU) film with high transparency and excellent mechanical properties has been achieved by stepwise polymerization. The mechanical properties and impact resistance of CPU composites were improved obviously, attributed to the microphase separation and hydrogen bonding. The tensile strength and bonding strength of the CPU film with glass can reach 53 and 3.4 MPa, which were 150 and 280% higher than those of the PU film, respectively. Extremely strong impact resistance of the laminated glass based on the CPU film has been confirmed by the falling ball impact test, which was 2.3 times that of polyvinyl butyral and 3.5 times that of PU. It will be an excellent candidate for safety laminated glass, which can be used in the aerospace, defense, and automotive fields.

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Constitutive models for temperature-, strain rate- and time-dependent behaviors of ionomers in laminated glass

et al. 2023

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

Cited by 9 publications

References 37 publications

Adhesion Properties of Polyvinyl-Butyral-Laminated Glass under High-Speed Loading

Adhesion Properties of Polyvinyl-Butyral-Laminated Glass under High-Speed Loading

High-Strength Polyurethane Composite Film Reinforced by Cellulose Nanocrystals

Constitutive models for temperature-, strain rate- and time-dependent behaviors of ionomers in laminated glass

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