• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 62 ›› Issue (6): 247-256.doi: 10.3901/JME.260191

Previous Articles    

AM-1DCNN Based Automatic Recognition of Mechanical Damage in Composite Material

JIA Kangkang1, DU Junmin2,3, CHEN Feiyu2,3, SHI Jianwei1, HOU Guoyi4, LI Cheng1   

  1. 1. School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001;
    2. Henan Key Laboratory of Underwater Intelligent Equipment, Zhengzhou 450015;
    3. 713th Research Institute of China State Shipbuilding Corporation Limited, Zhengzhou 450015;
    4. College of Mechanical&Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210000
  • Received:2025-05-08 Revised:2025-12-15 Published:2026-05-12

Abstract: In order to solve the bottleneck of automatic identification of mechanical damage of carbon fiber reinforced polymer (CFRP), an attention module (AM) and one dimensional convolutional neural network (1DCNN) damage identification method was proposed, based on the nonlinear ultrasonic detection technique. Firstly, one-dimensional ultrasonic vibration signals of different mechanical damage types of composite materials were obtained by ultrasonic testing platform and finite element simulation method. After the model training was completed, the model was used to judge the damage type of the test data set of carbon fiber composites. Finally, try to identify the signals of different damage types of composites, such as undamaged, perforated, split and low-speed impact damage. The results show that the proposed model has strong scalability and fast convergence, and the recognition accuracy of common mechanical damage types of CFRP is 96.79%, which is 2.07% higher than that of the traditional CNN model, laying a foundation for the automatic diagnosis of damage in CFRP composites in service environment in universities.

Key words: composite material, one-dimensional convolution neural network, attention module, damage identification

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