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首页> 外文期刊>International Journal of Sustainable Materials and Structural Systems >Effects of corrugation on the stiffness properties of composite beams for structural applications
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Effects of corrugation on the stiffness properties of composite beams for structural applications

机译：波纹对结构应用复合梁刚度特性的影响

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摘要

The primary goal of this research was to investigate the stiffness characteristics of trapezoidal corrugated composite laminates under tensile and flexural load. Stiffness was calculated experimentally, analytically, and numerically in two directions. The longitudinal direction was defined as perpendicular to the corrugations and transverse direction along the corrugations. The stiffness ratio is the ratio of longitudinal stiffness to transverse stiffness. The effects of corrugations were measured by comparing changes to the stiffness ratios of flat and corrugated composite beams in tension and bending. For corrugated fibreglass coupons, the extensional stiffness ratio was increased from 1.0 to 49 and the flexural stiffness ratio was increased from 0.3 to 187. For carbon fibre coupons, the extensional stiffness ratio increased from 0.7 to 61.3 and the flexural stiffness ratio increased from 0.3 to 81.4. Corrugation of composite beams has shown a significant increase in stiffness for tensile and bending applications.
机译：该研究的主要目的是研究拉伸和弯曲载荷下梯形波纹复合材料层压板的刚度特性。实验，分析和数值在两个方向上计算刚度。纵向被定义为沿波纹的波纹和横向垂直。刚度比是纵向刚度与横向刚度的比率。通过将扁平和挥发性复合梁的刚度比的变化比较张力和弯曲来测量波纹的影响。对于波纹玻璃纤维试样，延伸刚度比从1.0升增加到49，抗弯曲刚度比从0.3〜187增加。对于碳纤维试样，延伸刚度比从0.7增加到61.3，抗弯刚度比从0.3增加到61.3。 81.4。复合梁的波纹显示出拉伸和弯曲应用的刚度显着增加。

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