Abstract
Carbon fiber reinforced polymers (CFRP) are a widely used composite material applied in both commercial and industrial utilization. Based on the heat conduction theory, a theoretical model for the temperature rise of braided CFRP irradiated by long pulse laser is established in this work, and the time required for the maximum temperature rise of CFRP (with different thicknesses) to be acted by long pulse laser with different energy densities and pulse widths is simulated. At the same time, the temperature rise experiment and damage morphology of a long pulse laser with braided CFRP were carried out. The theoretical simulation results are in good agreement with the experimental results, which verifies the correctness of the theoretical model. The results of this paper will provide a theoretical basis for laser processing of CFRP.
Highlights
Carbon fiber reinforced polymers (CFRP) are a new material with high strength and corrosion resistance
When laser fluence increased from 80 J/cm2 to around 250 J/cm2, the time required to reach the maximum temperature when laser irradiated on CFRP was dropped rapidly
When the laser energy density increases from 250 J/cm2 to 700 J/cm2, the time required for the braided CFRP surface to reach the maximum temperature decreases slowly
Summary
Carbon fiber reinforced polymers (CFRP) are a new material with high strength and corrosion resistance. They are favored by aviation and automobile manufacturing companies because of their good mechanical properties and light weight. Due to the sensitivity of the resin matrix to heat input, and the huge difference in the thermodynamic properties of carbon fiber and resin, etc., it is very easy to produce a heat affected zone (HAZ) when laser processing CFRP [3]. Much research on laser processing of composite materials has been conducted [6]. Carbon floc and fiber burr always occur due to the thermodynamics damage [10,11,12]. The energy required to vaporize or sublimate the carbon fiber is more than one order of magnitude higher than the matrix [20]
Sign-in/Register to view highlights & summary 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.
