GFRP: 15 microns embedded in polymer matrices leading to

GFRP:Fiberreinforced composite materials are one of the most substantial materials usedfor many applications which include building materials, aerospace industries,automotive industries, prosthetic. The reasons being their high strength toweight ratio, compliance, ease of combination with other materials like metals,accessibility of raw materials, cost efficacy. Out of many fibers available inpresent market, glass fibers are one of the economical materials. GFRP comprisesof tremendously thin long cylindrical milled glass fibers of diameter rangingfrom 10 to 15 microns embedded in polymer matrices leading to low weightassemblies. GFRP can be fabricated using hand lay-up method, rein transfermolding, pultrusion etc. Among these, Pultrusion is an automated procedure inwhich uniformly cross sectioned, long unidirectional composite materials are obtained.Glass Fiber Reinforced Polymers (GFRP) are by far the mostly used commercialcomposite materials.

We can witness their use in many daily used objects toautomotive, aircraft parts such as sanitary ware, water tanks, electricalinsulation pipes, car body panels, dash boards, engine cowlings, luggage racksand not to forget TV parts, radios, computers etc. AA8011:However, real-lifesituations demand more stability and durability from different structures,which cannot be justified by using composite materials alone. Hence, one way toachieve such desirable properties is by effective combination of metals and compositematerials.

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The joining of these two dissimilar materials can be done indifferent conventional ways like mechanical fastening, adhesive bonding etc. Consideringthe effects of stress concentration, reduction in cross sectional area, incompletesealing of surfaces, increase in total structure weight etc. adhesive bondingis preferred to mechanical fastening as a primary joining process for complexstructures. Another effective way of joining is by combining both adhesion and mechanicalfastening which gives more strength and larger life as adhesive may degradeover time.