Zhang Yongqiang, Pan Jinwu, Zhou Shuhan, Yin Qianfeng, Zhang Jialei, Xie Wenbo, Tan Fuli, Zhang Wei
Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, China.
Department of Astronautic Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China.
Polymers (Basel). 2022 Nov 23;14(23):5082. doi: 10.3390/polym14235082.
In order to understand the ablation behaviors of CFRP laminates in an atmospheric environment irradiated by continuous wave laser, CFRP laminates were subjected to a 1080-nm continuous wave laser (6-mm laser spot diameter), with different laser power densities carried out in this paper. The internal delamination damage in CFRP laminates was investigated by C-Scan. The rear- and front-face temperature of CFRP laminates were monitored using the FLIR A 655 sc infrared camera, and the rear-face temperature was monitored by K type thermocouples. The morphology of ablation damage, the area size of the damaged heat affected zone (HAZ), crater depth, thermal ablation rate, mass ablation rate, line ablation rate, etc., of CFRP laminates were determined and correlated to the irradiation parameters. It is found that the area size of the damage HAZ, mass ablation rate, line ablation rate, etc., increased as the laser power densities. The dimensionless area size of the damaged HAZ decreased gradually along the thickness direction of the laser irradiation surface.
为了了解连续波激光辐照下大气环境中碳纤维增强塑料（CFRP）层压板的烧蚀行为，本文对CFRP层压板进行了1080纳米连续波激光（激光光斑直径6毫米）辐照，采用了不同的激光功率密度。通过C扫描研究了CFRP层压板内部的分层损伤。使用FLIR A 655 sc红外热像仪监测CFRP层压板的背面和正面温度，并用K型热电偶监测背面温度。测定了CFRP层压板的烧蚀损伤形态、损伤热影响区（HAZ）的面积尺寸、坑深、热烧蚀率、质量烧蚀率、线烧蚀率等，并将其与辐照参数相关联。研究发现，损伤HAZ的面积尺寸、质量烧蚀率、线烧蚀率等随激光功率密度的增加而增大。损伤HAZ的无量纲面积尺寸沿激光辐照面厚度方向逐渐减小。
