Multistep Experimental Calibration of Mechanical Parameters for Modelling Multilayer Antishatter Safety Films in Structural Glass Protection

Glass material is largely used in buildings and facilities due to various motivations. Besides, glass still represents a vulnerable component for building occupants. Careful attention required especially elements that may be subjected extreme design loads, such as impact, vibrations, etc. Among approaches techniques prevent danger people case of breakage, multilayer antishatter safety films (ASFs) are commercially available the retrofit existing monolithic members. In present research study, multistep experimental program presented obtain characterization key input mechanical parameters numerical analysis protected by ASFs. Relevant characteristics derived definition an equivalent tape able reproduce ASF outcomes. On side experiments, artificially aged specimens (healing process) investigated. A major advantage taken from small-scale peel tensile tests on samples, well Operational Modal Analysis (OMA) nondestructive vibration measurements preliminary fractured ASF-bonded elements. Efficient Finite Element (FE) models calibrated with support data Cohesive Zone Modelling (CZM) discussion comparative results, giving evidence rather good estimates possible extension procedure.