Finite Element Simulation for Laser Ablation of Carbon Fiber Epoxy Composite

Abstract:

In order to predict the size and shape of the laser ablative hole, a 3D finite element model was developed to simulate the Nd:YAG laser ablation of carbon fiber epoxy composite. For given irradiation conditions, good agreement with experimental data relating to hole dimensions. The numerical results and experimental observations indicate that with the irradiation time increasing, the domain under investigation temperature raises rapidly and the further to the spot center, the smaller the temperature raises. After 0.093s the target surface temperature is higher than the critical temperature of composite, so the removal of the material on first composite layer occurs. It also can be observed that heat energy of the laser spread within the material and the isotherm ribbon, as well as crater border, is step-like.

• Periodical: Applied Mechanics and Materials (Volumes 66-68)
• Pages: 715-720
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.66-68.715
• Online since: July 2011
• Authors: Jin Feng Zhang, Lian Chun Long
• Keywords: Carbon-Fiber/Epoxy Composites, Continuous Laser, Finite Element (FE) Simulation, Laser Ablation

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