Laminate Stiffness Tailoring for Improved Buckling Performance

This data item provides supplementary information to an article entitled: Laminate Stiffness Tailoring for Improved Buckling Performance. The article presents a stiffness tailoring approach for improved buckling performance using double angle-ply laminates. These special configurations are either stiffness matched to the extensional stiffness of equivalent balanced and symmetric laminate designs, or standard-ply designs, representing typical aircraft components, such as a spar, skin or stiffener, to identify configurations with improved buckling performance, or matched to specific bending stiffness properties, in order to achieve a buckling performance threshold. Tailored designs with matched isotropic properties in bending are used to demonstrate the influence of variation in axial stiffness on the stability of thin walled sections. Many of the designs can be tapered in thickness, through ply terminations, which permit tailoring of the bending stiffness properties between compression and shear dominant regions. The following electronic appendices are listed below: Appendix 1 - Balanced and Symmetric Standard-Ply Designs Appendix 2 - Double Angle-Ply Designs Derived from Standard-Ply Designs Appendix 3 - Double Angle-Ply Designs Appendix 4 - Tapered Double Angle-Ply Designs

本数据集为题为《面向屈曲性能优化的层合板刚度剪裁》的学术论文提供补充信息。该论文提出了一种采用双角度铺层层合板的刚度剪裁方法，以优化屈曲性能。本研究采用的特殊铺层构型可分为三类：其一刚度与等效平衡对称层合板的拉伸刚度相匹配；其二采用标准铺层设计（代表翼梁、蒙皮、加强筋等典型航空构件），用于筛选屈曲性能更优的构型；其三匹配特定弯曲刚度特性，以实现预设的屈曲性能阈值。采用弯曲方向各向同性特性匹配的剪裁设计，用以探究轴向刚度变化对薄壁截面稳定性的影响。多数设计可通过铺层终止实现厚度渐变，从而可在受压主导与受剪主导区域之间剪裁弯曲刚度特性。本次数据集包含以下电子附录：附录1——平衡对称型标准铺层设计；附录2——由标准铺层设计衍生的双角度铺层层合板；附录3——双角度铺层层合板；附录4——渐变厚度双角度铺层层合板。