Glass–GFRP Laminate: A Proof of Concept Experimental Investigation

Feyza Yildirim, Mithila Achintha

Research output: Contribution to journalArticlepeer-review


This paper presents a proof of concept experimental validation of a novel Glass–Glass Fibre Reinforced Polymer (GFRP) laminate. The Glass–GFRP laminate specimens were fabricated by combining two thin annealed glass sheets (i.e. top and bottom skins of the laminate) with a dry, porous three-dimensional (3D) GFRP core. Vacuum Infusion Process (VIP) was used to impregnate the dry 3D GFRP core as well as to connect the glass sheets and the GFRP core using a clear, acrylic resin in a single-step fabrication step. The paper shows that choosing right materials and fabrication parameters, VIP-based methods can be used to fabricate Glass–GFRP laminates. Although Glass–GFRP laminate shows less light transmittance at ~60-70% compared to annealed and PVB-based laminated glass at ~90-100%, the new laminate still ensured notable light transmittance capability. Bending test results showed the Glass–GFRP laminate ensured higher load capacity (~1000% and ~210% increase compared to annealed monolithic and PVB-based annealed laminated glass, respectively), and higher flexural stiffness (~10 times and ~4 times high compared to annealed monolithic and PVB-based annealed laminated glass, respectively). More importantly, compared to the reference glasses, the glass–GFRP laminate demonstrated significant load resistance in the post-cracked regime of the glass sheets and unlike the reference glasses, Glass– GFRP laminates did not fail in brittle manners.
Original languageEnglish
Article number108733
Number of pages13
JournalJournal of Building Engineering
Publication statusPublished - 4 Feb 2024


  • GFRP
  • Glass
  • Laminate
  • Vacuum infusion process


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