Abstract
The effect of hole machining method on the impact response and damage of CFRP laminates under low-velocity impacts was investigated. An impact test study was carried out on specimens with a hole machined by twist drilling (TD) and abrasive water jet machining (AWJM), and three-dimensional morphology observations were performed to assess the hole quality. The impact load and damage area were measured. Test results showed that, at the maximum impact load, the energy absorbed by the AWJM specimen was 1.6% higher than that absorbed by the TD specimen, and the impact damage area of the AWJM specimen was 6.9% larger than that of the TD specimen. In addition, craters and processing streaks were observed in the AWJM specimen, whereas fiber pull-outs and matrix degradation were found in the TD specimen.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
