Effect of Crosshead Displacements Rates on the Out of Plane Mechanical Properties of S2-Glass Fiber Reinforced Polymers

Crosshead displacement rates are significant parameters that alter the mechanical response of fiber reinforced polymeric materials. In this study, we examined the bending behavior of S2-glass fiber reinforced polymeric materials with different crosshead displacement rates under out-of-plane loading condition. Out of plane loading condition is achieved with a three-point bending fixture. Three different crosshead displacement rates, 20 mm/min, 40 mm/min, and 60 mm/min, are chosen. Flexural strength, flexural modulus, and flexural strain at maximum load is analyzed. It is found that as the crosshead displacement rate increases from 20 mm/min to 40 mm/min, both flexural strength and flexural modulus shows an upward trend. However, when the crosshead displacement rate increases from 40 mm/min to 60 mm/min a drop in the flexural strength and modulus is observed.