In this research, we investigated the effect of temperature variation on low velocity impact response of woven carbon fiber
reinforced polymer (CFRP) composites. Carbon fibers were weaved in twill 2/2 type and they reinforced the composite
performance. We applied epoxy as composite matrix and then fabricated CFRP plates by using vacuum assisted resin infusion
molding (VARIM) method. We performed thermal cycling shock experiment between – 40 and + 120 °C for 20, 40,
60 and 80 cycles. Then, we exposed specimens to the low velocity impact test for various thermal cycling numbers. The
results showed that thermal cycling shock can improve or degrade the impact behavior based on post curing and debonding
processes. Debonding possibly occurred since there was a coefficient of thermal expansion (CTE) mismatch between composite
components. We also observed that the (room temperature tested) RT samples and the samples exposed to 80 cycles
between – 40 and + 120 °C had the best and weakest performance, respectively. Finally, the increase of cycle numbers in
thermal shock cycling process degraded the composite structure and decreased the impact performance of CFRPs.