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Proceedings Paper

Numerical study of pyrolysis behavior of carbon-fiber/epoxy composite under the laser
Author(s): Zhi-liang Ma; Min-bo He; Cheng-hua Wei; Wei-ping Liu; Meng-lian Zhou; Tao-tao Wu
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Paper Abstract

Considered the pyrolysis and the internal gas convection, a three-dimensional mathematical model based on the conservation of energy, had been developed for predicting the pyrolysis behavior of composite subjected to laser. By taking carbon-fiber /epoxy composite for examples, the effects of irradiation time and power density on the mass loss and the thermal ablation rate were obtained from an irradiation experiment with the tangential nitrogen and low power density. The numerical results agree well with the experimental results on the whole. The results reveal that as the irradiation time continues, the thermal ablation rate begins to decrease gradually and then tends to be steady after a rapid increase. The oxidation can be effectively restrained due to a nitrogen protection. However, laser power density will enhance the oxidation effect, which causes that the mass loss approximately shows a linear rise and the thermal ablation rate tends to be steady after 180 W/cm2.

Paper Details

Date Published: 12 May 2017
PDF: 6 pages
Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101730J (12 May 2017); doi: 10.1117/12.2266767
Show Author Affiliations
Zhi-liang Ma, Northwest Institute of Nuclear Technology (China)
Min-bo He, Northwest Institute of Nuclear Technology (China)
Cheng-hua Wei, Northwest Institute of Nuclear Technology (China)
Wei-ping Liu, Northwest Institute of Nuclear Technology (China)
Meng-lian Zhou, Northwest Institute of Nuclear Technology (China)
Tao-tao Wu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 10173:
Fourth International Symposium on Laser Interaction with Matter
Yongkun Ding; Guobin Feng; Dieter H. H. Hoffmann; Jianlin Cao; Yongfeng Lu, Editor(s)

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