Surface impact damage observations in random glass fiber-reinforced polymers using a penetrant-assisted imaging technique

摘要

Random glass fiber-reinforced polymers, random GFRP, are now widely used in industry for secondary structural components, especially for transportation applications. One of the most important properties for such applications concerns the impact resistance which is often characterized through drop-weight impact tests and post-fracture analysis using various nondestructive testing (NDT) techniques [1-3].