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, exc...

The stability analysis of sleeve stiffened pin-ended slender hollow columns of pipe or box section is performed in the present study. This is accomplished by using energy method, employing three terms in the assumed approximate deflection function. The lengthy and tedious algebraic manipulations involved in solving the relevant eigenvalue problem, necessitates employing the "MATHEMATICA" softwa...

Experimental studies were conducted to determine if the stresses occurring during manufacturing process of Fiber Metal Laminates (FML) cause irreversible damage electronic components. This is especially interesting for systems be embedded into such FML later structural health monitoring purposes. Depending on requirements used prepreg material, required temperatures and pressures can quite high...

The in-plane compressive behaviour of thin-skin stiffened composite panels with a stress concentrator in the form of an open hole or low velocity impact damage is examined analytically. A fracture mechanics model, developed initially to predict notched compressive strength, was applied to estimate the compression-after-impact strength of a stiffened panel; in the analysis the impact damage is r...

In this article, the effect of hygrothermal aging on mechanical properties of fiber metal laminates (FMLs) and E-glass/epoxy (GE) composites is investigated. First, FML and GE specimens were built using wet lay-up technique under vacuum pressure. Hygrothermal aging simulation was then carried out on both specimen types in distilled water at a constant temperature of 90 °C for 5 weeks. The resul...

FMLs are considered by many industries, including the aerospace industry, due to their important advantages such as high strength, low weight, corrosion and moisture resistance, good fatigue properties, and so on. The purpose of the present study is to improve the mechanical properties of the panel through the addition of nanoscale by improving the structure of the FML. For this purpose, the pe...