Characterization of GFRP with Juliflora and Ragi as Fillers

Fiber laminates are good candidates for advanced aerospace structural applications due to their high specific mechanical properties especially fatigue resistance. The most important factor in manufacturing of these laminates is the adhesive bonding between prosopis juliflora-RAGI and FRP layers.  In this study several glass-fiber reinforced prosopis juliflora-RAGI laminates with different bonding adhesion were manufactured. Mechanical Tests like Tensile, Compression and Impact tests were carried out based on ASTM standard were then conducted to study the effects of interfacial adhesive bonding on impact behavior of these laminates.  It was observed that the damage size is greater in laminates with poor interfacial adhesion compared to that of laminates with strong adhesion between prosopis juliflora-RAGI and glass layers. In addition, this is a good adhesion bonding show better resistance under low velocity impact and their corresponding contact forces are about 25% higher than that of specimens with a weak bonding. Moreover, maximum central deflections in laminates with strong bonding are about 30% lower than that of with poor adhesion.  These proposed laminate was provided better mechanical properties such and tensile and impact.