Transactions of Nanjing University of Aeronautics & Astronautics
Research on High-Velocity Impact Damage Monitoring Method of CFRP Based on Guided Wave
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Abstract:
Carbon fiber-reinforced polymer （CFRP） is widely used in aerospace applications. This kind of material may face the threat of high-velocity impact in the process of dedicated service， and the relevant research mainly considers the impact resistance of the material， and lacks the high-velocity impact damage monitoring research of CFRP. To solve this problem， a real high-velocity impact damage experiment and structural health monitoring （SHM） method of CFRP plate based on piezoelectric guided wave is proposed. The results show that CFRP has obvious perforation damage and fiber breakage when high-velocity impact occurs. It is also proved that guided wave SHM technology can be effectively used in the monitoring of such damage， and the damage can be reflected by quantifying the signal changes and damage index （DI）. It provides a reference for further research on guided wave structure monitoring of high/hyper-velocity impact damage of CFRP.
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This work was supported by the National Natural Science Foundation of China （Nos.51921003， 52275153）， the Fundamental Research Funds for the Central Universities（No.NI2023001）， the Research Fund of State Key Laboratory of Mechanics and Control for Aerospace Structures （No.MCAS-I-0423G01）， the Fund of Prospective Layout of Scientific Research for Nanjing University of Aeronautics and Astronautics， and the Priority Academic Program Development of Jiangsu Higher Education Institutions of China.
Clc Number:
TB553
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