Opto-Electronic Engineering, Volume. 49, Issue 1, 210314-1(2022)

Study on multi-layered CFRP patch bonding joint based on laser 3D engraving technology

Xiaowei Zhu1... Zhehao Pan1, Wenfeng Yang2, Shaolong Li2 and Yu Cao1,* |Show fewer author(s)
Author Affiliations
  • 1International Science & Technology Cooperation Base for Laser Processing Robot, Wenzhou University, Wenzhou, Zhejiang 325035, China
  • 2Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan, Sichuan 618307, China
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    To repair structural damage of carbon fiber reinforced polymers (CFRP) for aircrafts, the patch bonding technology is an ideal process to obtain a high-performance CFRP laminate joint. This study proposed a multi-ladder patch bonding adhesive joint design for CFRP laminates. The Yin and Yang film of patch bonding joint was designed and constructed. The code generation algorithms for the layered slice laser 3D engraving and scanning process were explored. The laser ablation processes of CFRP ladder layer interface and the bonding mechanism were investigated, which verified that the tensile strength and impact toughness of the adhesive joint were effectively improved. The failure mode of the joint is consistent with the designed adhesive failure. This study provides a design and fabrication technology to realize high-performance patch bonding joints for CFRP components, which can be applied in aviation, aerospace, and transportation etc.

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    Xiaowei Zhu, Zhehao Pan, Wenfeng Yang, Shaolong Li, Yu Cao. Study on multi-layered CFRP patch bonding joint based on laser 3D engraving technology[J]. Opto-Electronic Engineering, 2022, 49(1): 210314-1

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    Paper Information

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    Received: Sep. 26, 2021

    Accepted: --

    Published Online: Apr. 6, 2022

    The Author Email: Cao Yu (yucao@wzu.edu.cn)

    DOI:10.12086/oee.2022.210314

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