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The non-circular section fuselage of Blended Wing Body (BWB) civil aircraft has poor ability to withstand normal pressure load. If the BWB fuselage structure is designed according to the typical stiffened panel, the fuselage weight will increase sharply. Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) has the advantage of loss/crack arrest, which provides a solution for the weight increase of BWB fuselage. In view of the absence of calculation methods for the bearing capacity of PRSEUS stiffened panels and the dearth of test data, the current information is insufficient to underpin the structural design of PRSEUS fuselage. The investigation of the load-carrying capacity evaluation method for PRSEUS stiffened panel and typical stiffened panel structures is conducted, along with a comprehensive analysis of the load-carrying efficiency and failure modes of these two types of stiffened panel structures. The computed results demonstrate a notable enhancement in the axial compressive load efficiency of PRSEUS stiffened panels by 29.11%, along with a significant improvement in the normal compressive load efficiency of 36.41% when compared to typical stiffened panel.

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Study on Compressive Strength of PRSEUS Configuration Panel

  • 会议论文

  • 发表日期：

    2025年

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  • Rui Tian,
  • Haiyan Wang,
  • Liang Chang,
  • Xiaohua Nie,
  • Chunhua Wang,
  • Lilong Luo

摘要

The non-circular section fuselage of Blended Wing Body (BWB) civil aircraft has poor ability to withstand normal pressure load. If the BWB fuselage structure is designed according to the typical stiffened panel, the fuselage weight will increase sharply. Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) has the advantage of loss/crack arrest, which provides a solution for the weight increase of BWB fuselage. In view of the absence of calculation methods for the bearing capacity of PRSEUS stiffened panels and the dearth of test data, the current information is insufficient to underpin the structural design of PRSEUS fuselage. The investigation of the load-carrying capacity evaluation method for PRSEUS stiffened panel and typical stiffened panel structures is conducted, along with a comprehensive analysis of the load-carrying efficiency and failure modes of these two types of stiffened panel structures. The computed results demonstrate a notable enhancement in the axial compressive load efficiency of PRSEUS stiffened panels by 29.11%, along with a significant improvement in the normal compressive load efficiency of 36.41% when compared to typical stiffened panel.