COMPOSITES SCIENCE AND ENGINEERING ›› 2025, Vol. 0 ›› Issue (8): 132-141.DOI: 10.19936/j.cnki.2096-8000.20250828.016

• ENGINEERING APPLICATION • Previous Articles     Next Articles

Analysis of anti-bird strike performance on GLARE laminate structure

TIAN Xiaoyu1, ZHANG Fa1, JI Shengcheng2, SHI Chen2, WU Xiaoguang2, LIN Dakai2   

  1. 1. Beijing Key Laboratory of Commercial Aircraft Structures and Composite Materials, COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, China;
    2. COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, China
  • Received:2024-07-16 Online:2025-08-28 Published:2025-09-23

Abstract: With the development of aeronautical technologies, the speed of aircraft is improved dramatically. The probability of bird impact on aircraft during take-off and landing is greatly increased. It will result in the aircraft crash. In order to guarantee flight safety, CCAR25 airworthiness regulations have made relevant requirements for impact resistance of the leading-edge structure. Glass fiber reinforced aluminum (GLARE) as a kind of material with good impact resistance, it has been applied to the empennage leading-edge structures such as A380. In this paper, firstly, the methods and theory of anti-bird strike for GLARE leading edge structure is introduced. The analytical method has been verified. Secondly, the finite element analysis method and explicit impact software LS-DYNA is used, the four same thickness but different lay-up of GLARE leading edge structure has been studied. Thirdly, the study is conducted on different curvature GLARE laminate structure. According to analysis the failure mode, the results shows that the deformation and failure of GLARE laminate structure, structure energy absorption, stress nephogram and bird strike force. It is found that the GLARE laminate structure with 3/2[A/+45/-45/+45/-45/A/+45/-45/+45/-45/A] and curvature radius of 100 mm has the best impact resistance.

Key words: GLARE material, laminate structure, bird strike analysis, test verification

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