科研之友
微信
新浪微博
Facebook
分享链接
摘要
A novel composite wing with Z-pin reinforced foam core sandwich panels was presented. It has high torsional and bending stiffness as well as improved damage tolerance. The collapse modes of Z-pinned core were summarized and developed, and then the failure envelopes under various stress conditions were given based on the Tsai-Wu failure criterion. An analytical approach was developed to assess the bending-twist properties of wing box, and the change of ply orientation of sandwich panel facesheets on the coupling coefficient was demonstrated. The Z-pinning parameter is determined by the applied bending moment and transverse loads. Numerical examples were presented to show the design parameters of Z-pinning for a given load case.
- 出版日期2011-11
