The Impact of Fiber Architecture on the Mechanical Properties of Hand Lay-up Reinforced Polyester Resin

This work aimed to improve the mechanical properties of a glass fiber-reinforced polyester resin composite material. The research evaluated the effect of glass fiber architecture on these properties by using fibrous-like and sheet-like glass fibers to reinforce polyester resins via a hand lay-up method. The prepared specimens were analyzed for various mechanical properties, including tensile, hardness, and flexural, according to ASTM standards. The results showed that glass fiber reinforcement in both fibrous-like and sheet-like forms enhanced the mechanical properties of polyester resin. Specifically, polyester resin composites reinforced with fibrous-like glass fibers exhibited superior mechanical properties. The hardness was ۲۸.۰۳±۳.۴۹ HV, the tensile strength was ۷۶.۳۱±۱۱.۳۸ MPa, the tensile modulus was ۲۲۹۳.۹۲±۱۱۶.۶۸ MPa, and the percent elongation at break was ۵.۹۲%, with a flexural resistance of ۱۱۴.۴۹±۲۲.۲۱ MPa and a flexural modulus of ۵۳۷۷.۳۷±۵۹۶.۶۲ MPa. Additionally, a simulation model using SIMCENTER ۳D software was utilized to assess the stress application on a large water tank fabricated by the as-prepared composites. The simulation confirmed the performance of these composites.

کلیدواژه ها:

Composite materials ، Polyester resin ، Glass fiber