In-situ impact analysis during fatigue tests of open-hole carbon fibre reinforced polymer specimens

This paper presents the results for an experimental campaign of in-situ impact during tension-tension fatigue loading open-hole carbon fibre reinforced polymer specimens. High-speed low energy was introduced to specimen with use a canon, which attached testing bench enabling without need remove specimens from test bench. Digital Image Correlation, C-scan and Acoustic Emission were utilized record health monitoring data damage diagnostics. A strain-based criterion used identify common threshold timing ensuring fair comparison between different tests. The indicate that while causes total amount increase as one would expect, it does not necessarily level in critical area where final fracture occurs. dependence on moment failure found subjected before initiation loading. In contrast, impacting presence had no detrimental effect life, although observed damaged enlarged. Overall, showcases study systemically life order understand better implications may be integrity composite structure.