Abstract
Carbon-fiber-reinforced polymer (CFRP) composite is widely used in aerospace industry. The protective paint on the CFRP of aircraft needs to be removed after reaching a certain useful life. Laser cleaning has the advantages of high efficiency and environmental protection. However, the main obstacle to the application of laser cleaning on CFRP is the thermal damage caused by the laser radiation absorbed on the surface or inside of the substrate. In order to understand the interaction between laser and each layer of material, and the influence of laser parameters on the substrate temperature rise. Based on the ‘element death’ technique of the finite element (FE) method, a numerical model of material removal on a heterogeneous fiber–matrix mesh was established, which can accurately simulate the heat transfer process between carbon fiber and resin matrix. The effects of laser energy density, spot overlap rate and adjacent scanning line interval on material removal and the peak temperature of the substrate were investigated. The results show that the pulsed laser paint removal process will produce two high temperature zones on the resin layer and the heterogeneous material, and the superposition of adjacent pulse energy can significantly increase the temperature rise of the substrate.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
