Laminate Stiffness Tailoring for Improved Buckling Performance

This data item provides supplementary information to a published article: York, C. B. (2021) Laminate stiffness tailoring for improved buckling performance. Thin-Walled Structures, 161, 107482. https://doi.org/10.1016/j.tws.2021.107482 Received 31 July 2020, Revised 18 November 2020, Accepted 20 January 2021, Available online 18 February 2021. 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

本数据集为一篇已发表学术论文提供补充资料：York, C. B.（2021）《用于提升屈曲性能的层合板刚度剪裁》（Laminate stiffness tailoring for improved buckling performance），刊载于《薄壁结构》(Thin-Walled Structures)，第161卷，文章编号107482。DOI链接：https://doi.org/10.1016/j.tws.2021.107482。本文于2020年7月31日收稿，2020年11月18日修订，2021年1月20日录用，2021年2月18日在线发布。

该论文提出了一种采用双角铺层层合板（double angle-ply laminates）的刚度剪裁方法，以优化屈曲性能。这类特殊铺层构型可分为三类应用场景：一是与等效平衡对称层合板设计的拉伸刚度（extensional stiffness）相匹配；二是采用标准铺层设计（standard-ply designs），这类设计可代表翼梁、蒙皮、加强筋等典型航空航天构件，用于识别屈曲性能更优的构型；三是与特定弯曲刚度特性（bending stiffness properties）匹配，以达成既定屈曲性能阈值（buckling performance threshold）。

研究采用弯曲方向匹配各向同性特性（isotropic properties）的剪裁设计，验证了轴向刚度（axial stiffness）变化对薄壁截面（thin walled sections）稳定性的影响。多数设计可通过铺层终止（ply terminations）实现厚度渐变，从而实现受压主导区与受剪主导区之间的弯曲刚度特性剪裁。

下述为配套电子附录：
附录1 — 平衡对称标准铺层设计
附录2 — 由标准铺层设计衍生的双角铺层层合板
附录3 — 双角铺层层合板
附录4 — 厚度渐变双角铺层层合板