Experimental investigation of quasi-static behavior of composite and fiber metal laminate panels modified by graphene nanoplatelets

The current study investigated the influence of incorporation graphene nanoplatelets (GNPs) on quasi-static behavior composite and fiber metal laminate (FML) panels. unmodified modified specimens FML panels with 2/1 configuration were fabricated using a hand lay-up method through punch indentation testing. two sets tests conducted flat-ended indenter loading conditions same for all samples, except support spans which varied. Following experimental testing, possible damages at region closely localized global observed. results revealed that adding 0.2 wt% GNPs improved strength fracture toughness by delaying failure modes. On contrary, made bonding between aluminum interface to weaken.