Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Microscale Discrete Element Model for Simulating Bridging Behavior of Fractured Glass Laminates
AU - Wang, Xing Er
AU - Yang, Jian
AU - Peng, Shennan
AU - Wang, Yige
AU - Hou, Xiaonan
N1 - Publisher Copyright: Copyright © 2022 with the author(s)
PY - 2022/6/20
Y1 - 2022/6/20
N2 - The bridging behavior between fragments is one vital factor in the post-fracture stage of glass laminates. A particle-based discrete element model was developed in this work to simulate the bridging behavior of fractured glass laminates. The model was based on the calibration of hyperelastic PVB material properties using soft-bond model and further validated with the experimental data as well as the observations from through-crack-tensile tests. In order to investigate the bridging performance of fractured glass laminates with multiple fragments under uniaxial tension, three factors encompassing the crack aligning, fragment number and adhesion conditions were considered to perform a parametric study. The results give an exploratory application of the developed discrete element models in the estimation of the post-fracture behaviors. It is found that the smaller fragment size can diminish the tension-stiffening effect in the non-aligned case which might generate an enhancing ratio of initial modulus up to nearly 3.6. The non-aligned cracks can also lead to a very high strength if the adhesion ability can be guaranteed. However, the delamination of fragments is expected to control the post-fracture strength of fractured glass laminates with PVB interlayer.
AB - The bridging behavior between fragments is one vital factor in the post-fracture stage of glass laminates. A particle-based discrete element model was developed in this work to simulate the bridging behavior of fractured glass laminates. The model was based on the calibration of hyperelastic PVB material properties using soft-bond model and further validated with the experimental data as well as the observations from through-crack-tensile tests. In order to investigate the bridging performance of fractured glass laminates with multiple fragments under uniaxial tension, three factors encompassing the crack aligning, fragment number and adhesion conditions were considered to perform a parametric study. The results give an exploratory application of the developed discrete element models in the estimation of the post-fracture behaviors. It is found that the smaller fragment size can diminish the tension-stiffening effect in the non-aligned case which might generate an enhancing ratio of initial modulus up to nearly 3.6. The non-aligned cracks can also lead to a very high strength if the adhesion ability can be guaranteed. However, the delamination of fragments is expected to control the post-fracture strength of fractured glass laminates with PVB interlayer.
KW - Discrete element method
KW - Laminated glass
KW - Post-fracture behaviour
KW - PVB
U2 - 10.47982/cgc.8.451
DO - 10.47982/cgc.8.451
M3 - Conference contribution/Paper
AN - SCOPUS:85171435112
VL - 8
T3 - Challenging Glass Conference Proceedings
BT - Challenging Glass Conference Proceedings
A2 - Belis, Jan
A2 - Bos, Freek
A2 - Louter, Christian
T2 - 8th International Conference on the Architectural and Structural Application of Glass, CGC 2022
Y2 - 23 June 2022 through 24 June 2022
ER -