Effects of tangential supersonic airflow on the laser ablation of laminated CFRP

Journal of Materials Research and Technology

Ruixing Wang¹  Te Ma¹  Lingling Lu¹  Hongwei Song²  Chenguang Huang³  Wu Yuan⁴  Weina Zhao⁴  Zhe Wang⁴ 

[1] School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China;School of Science, Qingdao University of Technology, Qingdao 266520, China;State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Science, Beijing 100190, China;Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Science, Beijing 100190, China;

关键词: Laminated CFRP;    Laser ablation;    Mechanical erosion;    Supersonic wind tunnel;   

DOI  :  

来源: DOAJ

【 摘 要 】

Ablation behaviors of laminated carbon fiber reinforced plastics (CFRP) subjected to intense continuous wave laser in the supersonic wind tunnel are investigated experimentally. Comparable laser ablation tests in other environments, i.e., static air, static nitrogen and open airflow, are also carried out. Laser ablation rate in the supersonic wind tunnel is significantly larger than those of the other environments, in particular, at least twice of that in an open tangential airflow condition. The ablation morphology can be classified into two regions, coupled ablation zone (CAZ) and downstream affected zone (DAZ). Coupled thermal-fluid-solid analysis including thermochemical ablation and thermomechanical erosion models reveals that the contribution of each laser mechanisms is distinctive at the different positions of the laser ablation pit.

【 授权许可】

Unknown