Blast behaviour of fibre reinforced polymers containing sustainable constituents

As the use of more sustainable natural fibres and bio-based resins in fibre reinforced polymers (FRPs) becomes widespread, their susceptibility to damage due explosive detonation needs be evaluated. In this paper, flax jute FRP panels were blast tested compared equivalent mass glass panels. Comparisons made between FRPs manufactured using a synthetic Prime 20 epoxy Super Sap resin containing raw materials. The transient measurements revealed that all exhibited high-peak displacements viscously damped elastic vibrations. results showed predominance strength stiffness, lesser influence system. presented modified non-dimensional analysis approach could extended predict peak displacement during events future. failure mode progression for each panel type was identified, providing unique detailed insights designers protection engineers. work should prove valuable engineers considering effects detonations on structures FRPs.