COMPOSITES SCIENCE AND ENGINEERING ›› 2023, Vol. 0 ›› Issue (10): 37-46.DOI: 10.19936/j.cnki.2096-8000.20231028.006

• BASIC STUDY • Previous Articles     Next Articles

Study on the effect of layup method and blending ratio of aramid and UHMWPE fiber fabrics on dynamic response to blast loading

FENG Zhenyu1,2, ZHEN Tingting1,2, GAO Binyuan1,2, XIE Jiang1,2*   

  1. 1. College of Safety Science and Engineering, Civil Aviation University of China, Tianjin 300300, China;
    2. Key Laboratory of Civil Aircraft Airworthiness Technology, CAAC, Tianjin 300300, China
  • Received:2022-08-17 Online:2023-10-28 Published:2023-12-13

Abstract: To investigate the blast resistance characteristics of aramid fiber and ultra-high molecular weight polyethylene (UHMWPE) fiber fabric, LS-DYNA R11 was used to establish a fiber fabric blast impact finite element simulation analysis model, and the validity of the model was verified by comparing the dynamic response, failure modes and measured point overpressure curves of the fabric in the test. Numerical analysis of the blast impact was conducted on fabrics with different lamination methods and laination ratios at the same blast distance and equivalent under equal surface density conditions. The analysis of blast resistance from two aspects: failure mode and overpressure decay capacity, the result show that compared with alternate laminated fabric, sequential laminated fabric can better block the shock wave overpressure. Without considering the impact of the blast fireball, the fabric blast resistance increases with the increase of the proportion of UHMWPE fabric. For 12 stacking layers, the anti explosion structure of the mixed fabric adopts a combination of six layers of aramid fabric on the front explosion surface and six layers of UHMWPE fabric on the back explosion surface, which has the best anti explosion performance.

Key words: fiber fabrics, blast impact, dynamic response, stacking method, mixing ratio, composites

CLC Number: