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Volume 39 Issue 6
Jun 2025
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Chinese Journal of High Pressure Physics  > 2025  >  39(6): 064201.
SHANG Guihao, SHANG Fei, PAN Zhengwei. Analysis and Modeling of Plastic Deformation Characteristics of Sheet Metal under the Combined Action of Overpressure and Impulse[J]. Chinese Journal of High Pressure Physics, 2025, 39(6): 064201. doi: 10.11858/gywlxb.20240958
Citation: SHANG Guihao, SHANG Fei, PAN Zhengwei. Analysis and Modeling of Plastic Deformation Characteristics of Sheet Metal under the Combined Action of Overpressure and Impulse[J]. Chinese Journal of High Pressure Physics, 2025, 39(6): 064201. doi: 10.11858/gywlxb.20240958
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Analysis and Modeling of Plastic Deformation Characteristics of Sheet Metal under the Combined Action of Overpressure and Impulse

doi: 10.11858/gywlxb.20240958

  • School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

  • Received Date: 16 Dec 2024
  • Rev Recd Date: 26 Feb 2025
  • Accepted Date: 28 Mar 2025
    • Available Online: 28 Apr 2025
  • Issue Publish Date: 05 Jun 2025
    Abstract
  • The current research of shock wave pressure testing based on plastic deformation neglects the combined effect of overpressure peak and impulse on metal sheet, and the application range of the model is limited. To solve the above problems, the simulation analysis of three typical metal plates with different thicknesses and diameters under different impact loads is carried out, and the positive and negative correlations between the deformation of the plates and overpressure, impulse, diameter and thickness are revealed. Considering the influence of overpressure and impulse on thin plate deformation, the relationship model of deflection of circular plate deformation-overpressure/impulse is established by using dimensional analysis method. The verification test data show that the average error of the model is 4.84%, which meets the requirement of test accuracy in explosion field and can be used for actual shock wave test. The research provides an effective test method and accurate data support for the evaluation of shock wave damage power of high energy warhead.

     

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