Description
Structural members can undergo various types of loading during their lifetime, including impact loads. Fiber-reinforced polymer materials (FRPs) have been investigated as enhancing materials for various structural members against impact loading. This study reviews and highlights the impact resistance properties of different composite strengthening materials with a specific focus on vehicle collisions with bridge elements.
While the majority of existing research concentrates on the effectiveness of carbon fiber-reinforced polymer (CFRP) against impact loads, this study explores the performance of alternative materials. Comparative studies, including an assessment of aramid fiber-reinforced polymer (AFRP) versus CFRP, suggest that AFRP exhibits superior anti-impact mechanical properties, including enhanced energy-absorbing capacity. However, contradictory findings necessitate further investigation. Moreover, Dyneema® fiber-reinforced polymer (DFRP) emerges as a promising alternative with superior anti-impact mechanical properties compared to CFRP. Despite this potential, DFRP has not yet found widespread application in structural contexts. Remarkably, there is a lack of research evaluating the performance of axially loaded strengthened structural members. This research aims to bridge existing gaps in understanding practical applications for strengthening materials against impact loading. The presentation will include quantitative insights into the comparative performance of different materials and discuss the potential implications of the findings for future applications in structural engineering.
