Influence of interlayer properties on the blast performance of laminated glass panels

• Blast response of laminated glass (LG) has been numerically investigated.
• Influence of interlayer thickness and Young’s modulus (E) were studied.
• Constant adhesion between glass and interlayer was maintained.
• Design target should be critical interlayer thickness or Young’s Modulus (E).
• The safer failure mode enhances energy absorption and reduces support reaction.

This paper investigates the influence of interlayer properties on the blast performance of laminated glass (LG) panels. A parametric study is carried out by varying the thickness and Young’s modulus (E) of the interlayer under two different blast loads. Results indicate the existence of a critical interlayer thickness (or E) that causes the onset of interlayer failure. This should be achieved in the design to enhance energy absorption, reduce support reactions and initiate a safer failure mode. Present findings provide information to achieve such design targets and enable safe and efficient performance of LGs under credible blast loads.