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Volume 37 Issue 1
Feb 2023
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Chinese Journal of High Pressure Physics  > 2023  >  37(1): 014104.
WANG Yiping, WANG Wei, YANG Jianchao, WANG Jianhui, WANG Xing. Blast Resistant Performance of Steel/POZD Composite Structures under Close-Range Air Blast Loading[J]. Chinese Journal of High Pressure Physics, 2023, 37(1): 014104. doi: 10.11858/gywlxb.20220650
Citation: WANG Yiping, WANG Wei, YANG Jianchao, WANG Jianhui, WANG Xing. Blast Resistant Performance of Steel/POZD Composite Structures under Close-Range Air Blast Loading[J]. Chinese Journal of High Pressure Physics, 2023, 37(1): 014104. doi: 10.11858/gywlxb.20220650
shu

Blast Resistant Performance of Steel/POZD Composite Structures under Close-Range Air Blast Loading

doi: 10.11858/gywlxb.20220650
  • 1.

    Key Laboratory of Impact and Safety Engineering, Ningbo University, Ministry of Education, Ningbo 315211, Zhejiang, China

  • 2.

    Institute of Defense Engineering, Academy of Military Sciences, PLA, Luoyang 471023, Henan, China

  • Received Date: 08 Sep 2022
  • Rev Recd Date: 30 Sep 2022
    • Available Online: 24 Feb 2023
  • Issue Publish Date: 05 Feb 2023
    Abstract
  • To study the improvement mechanism of polyisocyanate oxazodone (POZD) on the blast resistance of steel plate, and analyze the dynamic response of steel/POZD composite structure, close-range air blast tests and finite element numerical simulations were conducted. Deformation failure modes of steel/POZD composite structures were studied and analyzed by observing the damage of tested structures and dealing with related date statistics. The accuracy of numerical simulation method was verified by comparing the results of numerical simulations with those of tests. The mid-span displacement change and energy absorption characteristics of steel/POZD composite structures were analyzed. Results show that steel/POZD composite structures have better blast resistant performance than single steel plates. Steel plates exhibit three different deformation failure modes. In the case of a steel/POZD composite structure with no crevasse, the plastic strain energy of steel layer gives a most contribution to the total energy absorption. The maximum central displacement of steel/POZD composite structure gradually increases, and meanwhile, its deformation velocity first increases and then decreases. The research results can provide references for the anti-explosion protection design of steel/POZD composite structures in engineering field.

     

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