Research on ultrasonic-assisted vibration multi-cycle compaction method of flexible guided 3D weaving.

Du, Wudi; Shan, Zhongde; Liu, Feng; Wu, Xiaochuan; Chen, Zhe; Zou, Guisheng

Du, Wudi; Shan, Zhongde; Liu, Feng; Wu, Xiaochuan; Chen, Zhe; Zou, Guisheng.

Afiliación

Du W; Department of Mechanical Engineering, Tsinghua University, Beijing, PR China; State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing, PR China.
Shan Z; State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing, PR China; Nanjing University of Aeronautics and Astronautics, Nanjing, PR China. Electronic address: shanzd@nuaa.edu.cn.
Liu F; State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing, PR China.
Wu X; State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing, PR China.
Chen Z; State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, Beijing, PR China.
Zou G; Department of Mechanical Engineering, Tsinghua University, Beijing, PR China.

Ultrasonics ; 145: 107461, 2024 Sep 14.

Article en En | MEDLINE | ID: mdl-39312857

ABSTRACT

ABSTRACT

The structure of three-dimensional (3D) preforms is the key to the performance of 3D reinforced composites. In order to improve the quality and efficiency of manufacturing, this paper originally proposes the ultrasonic vibration-assisted multi-cycle compaction method. Ultrasonic vibrations are applied, using a resonant 40â¯kHz compactor, to the compaction of 3D carbon fiber preform. Compared to the traditional method, the ultrasonic vibration-assisted multi-cycle compaction method can accelerate stress relaxation and reduce preform springback. The microstructure of preform is observed using x-ray computer tomography imaging. It elucidates the mechanism by which ultrasonic vibration promotes fiber slippage. The compaction forming experiment of preforms has proven that the ultrasonic vibration-assisted multi-cycle compaction method can reduce the compaction time, improving the forming quality. This can improve the technical support for the improvement of the manufacturing level of the 3D preform.

Palabras clave

3D composite; Carbon fiber; Mechanical properties; Ultrasonic compaction

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