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Bending stiffness of laminated glass elements in structural applications: influence of a elasto-viscoplastic ionomer interlayer on the pre-breakage behaviour

Dieter Callewaert (UGent) , Jan Belis (UGent) , Didier Delincé (UGent) , Delphine Sonck (UGent) and Rudy Van Impe (UGent)
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Abstract
To investigate the mechanical behaviour of laminated glass with the elasto-viscoplastic ionomer interlayer SentryGlas® by DuPont, an experimental program was executed on full-scale glass laminates. The results of this research improved the insight in the complex mechanical behaviour of this stiff interlayer. More specifically, a clear influence of load duration and temperature could be observed for both creep and relaxation setups during bending experiments. The stiffness reduction due to the load duration and the temperature raise was most significant for the smaller specimens - with a span of 1 m - while for the largest specimen - with a span of almost 3 meter - the reduction remained less than 25 % of the monolithic bending stiffness, even after a load duration of 48 hours at 65 °C.
Keywords
Elasto-viscoplastic, Experimental, Laminated glass, Interlayer, Shear transfer

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Chicago
Callewaert, Dieter, Jan Belis, Didier Delincé, Delphine Sonck, and Rudy Van Impe. 2011. “Bending Stiffness of Laminated Glass Elements in Structural Applications: Influence of a Elasto-viscoplastic Ionomer Interlayer on the Pre-breakage Behaviour.” In Advances in Engineering Plasticity and Its Applications : Proceedings of 10th Asia-Pacific Conference on AEPA 2010, ed. Yunhui Huang, 79–83. World Scientific.
APA
Callewaert, D., Belis, J., Delincé, D., Sonck, D., & Van Impe, R. (2011). Bending stiffness of laminated glass elements in structural applications: influence of a elasto-viscoplastic ionomer interlayer on the pre-breakage behaviour. In Yunhui Huang (Ed.), Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010 (pp. 79–83). Presented at the 10th Asia-Pacific conference on Engineering Plasticity and its Applications (AEPA 2010), World Scientific.
Vancouver
1.
Callewaert D, Belis J, Delincé D, Sonck D, Van Impe R. Bending stiffness of laminated glass elements in structural applications: influence of a elasto-viscoplastic ionomer interlayer on the pre-breakage behaviour. In: Huang Y, editor. Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010. World Scientific; 2011. p. 79–83.
MLA
Callewaert, Dieter, Jan Belis, Didier Delincé, et al. “Bending Stiffness of Laminated Glass Elements in Structural Applications: Influence of a Elasto-viscoplastic Ionomer Interlayer on the Pre-breakage Behaviour.” Advances in Engineering Plasticity and Its Applications : Proceedings of 10th Asia-Pacific Conference on AEPA 2010. Ed. Yunhui Huang. World Scientific, 2011. 79–83. Print.
@inproceedings{1085414,
  abstract     = {To investigate the mechanical behaviour of laminated glass with the elasto-viscoplastic ionomer interlayer SentryGlas{\textregistered} by DuPont, an experimental program was executed on full-scale glass laminates. The results of this research improved the insight in the complex mechanical behaviour of this stiff interlayer. More specifically, a clear influence of load duration and temperature could be observed for both creep and relaxation setups during bending experiments. The stiffness reduction due to the load duration and the temperature raise was most significant for the smaller specimens - with a span of 1 m - while for the largest specimen - with a span of almost 3 meter - the reduction remained less than 25 \% of the monolithic bending stiffness, even after a load duration of 48 hours at 65 {\textdegree}C.},
  author       = {Callewaert, Dieter and Belis, Jan and Delinc{\'e}, Didier and Sonck, Delphine and Van Impe, Rudy},
  booktitle    = {Advances in engineering plasticity and its applications : proceedings of 10th Asia-Pacific conference on AEPA 2010},
  editor       = {Huang, Yunhui},
  isbn         = {9789814324045},
  keyword      = {Elasto-viscoplastic,Experimental,Laminated glass,Interlayer,Shear transfer},
  language     = {eng},
  location     = {Wuhan, PR China},
  pages        = {79--83},
  publisher    = {World Scientific},
  title        = {Bending stiffness of laminated glass elements in structural applications: influence of a elasto-viscoplastic ionomer interlayer on the pre-breakage behaviour},
  year         = {2011},
}