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Applied mathematical modelling v.55, 2018년, pp.616 - 636   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Transient impact response analysis of an elastic–plastic beam

Zhang, Lin (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Yin, Xiaochun (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Yang, Jun (New United Group Co. Ltd., Changzhou 213166, China ) ; Wang, Hui (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Deng, Qingming (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Yu, Bo (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Hao, Qiming (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Ding, Huaiping (Department of Mechanics and Engineering Science, Nanjing University of Science and Technology, Nanjing 210094, China ) ; Qi, Xiaoli (School of Mechanics Engineering, Anhui University of Technology, Ma'anshan 243002, China ) ; Jin, Tengfei (Department of Mechanics ) ; Dong, Xiaoyun ;
  • 초록  

    Abstract A hybrid, numerical–analytical model is presented to investigate the transient response of a simply supported elastic–plastic beam subjected to impact of a sphere. The model couples a finite difference model based on the Rayleigh's beam theory with a theoretical contact model, named refined Stronge's model. The elastic–plastic transient impact responses of the beam and the wave propagation are solved by the finite difference model. The local elastic–plastic contact behavior is analyzed by the refined Stronge's model. The presented model is verified by the experiments. The comparisons of the numerical results with the experimental results show that the presented model is valid and can predict accurately the transient impact response and impact-induced wave propagation. The comparison of the calculating efficiency with the 3D finite element model shows that the presented model is highly efficient and suitable for parametric study. The effects of the various impact parameters, such as impactor mass, velocity, plasticity and impact location on the impact response, the energy loss and the coefficient of restitution are investigated. It has been found that the impact-induced wave propagation influences significantly the impact force response, the contact time, the energy loss and the coefficient of restitution. A jumping phenomenon of the energy loss and the Newton coefficient of restitution has been found, and it is resulted from the impact-induced wave propagation. The presented model appears to be suitable and convenient for the impact response analysis of elastic–plastic beam, especially for the study of impact-induced wave effects. Highlights A hybrid numerical–analytical model is presented for elastic–plastic beam impact. The experiment of sphere-beam impact has been conducted. The model has been verified by the experiments. The impact-induced waves have been detected by the experiments and the model. Effects of various impact parameters are investigated by the present model.


  • 주제어

    Rayleigh beam .   Elastic–plastic impact .   Transient response .   Finite difference method .   Contact model.  

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