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Compression and shear buckling performance of finite length plates with bending-twisting coupling

机译：弯扭耦合有限长板的压缩和剪切屈曲性能

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This article investigates the compression and shear buckling performance of finite length Bending-Twisting coupled laminated plates with simply supported edges. New contour maps are developed, representing non-dimensional buckling factors, which are superimposed on the lamination parameter design spaces for laminates with standard ply orientations. Changes in buckling mode for finite length plates complicate the contour maps, which are shown to be continuous only within discrete regions of the lamination parameter design space and are strongly influenced by plate aspect ratio. The contour maps also serve to demonstrate the degrading effect of Bending-Twisting coupling on compression buckling performance as well as providing new insights into shear buckling performance improvements, including optima that are non-intuitive. The adoption of two recently developed laminate databases, to which common design rules are now applied, including ply percentages and ply contiguity constraints, ensure that the conclusions drawn are based on practical rather than hypothetical designs.
机译：本文研究了具有简单支撑边的有限长弯扭耦合层压板的压缩和剪切屈曲性能。开发了新的等高线图，表示无量纲的屈曲因子，这些等高线图叠加在具有标准层定向的层压板的层压参数设计空间上。有限长板屈曲模式的变化使轮廓图复杂化，这些轮廓图仅在层压参数设计空间的离散区域内是连续的，并且受板长宽比的影响很大。等高线图还可以证明弯曲-扭曲耦合对压缩屈曲性能的退化作用，并提供有关剪切屈曲性能改进的新见解，包括非直觉的最优解。采用两个最近开发的层压板数据库（现在应用了通用的设计规则，包括层数百分比和层连续性约束）可以确保得出的结论基于实际设计，而不是假设设计。

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