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Mechanical behavior in compression of skin-added X-lattice composite panel with corrugated ribs

机译:波纹肋添加蒙皮X格复合板的压缩力学行为

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摘要

This study proposes a skin-added X-lattice composite structure consisting of corrugated ribs and a very thin skin, as an alternative form of anisogrid composites, for the efficient light weight structural concept under compression loading. The high mechanical capability of skin-added X-lattice structures is numerically analyzed, followed by introduction of the related manufacturing method. This manufacturing process is composed of preparation of corrugation units and co-curing of the units with a thin skin. The results of compression tests of fabricated X-lattice panels agree with numerical predictions in terms of buckling loads and buckling modes, while skin-added X-lattice panels exhibited somewhat lower buckling load than the prediction. Feasibility of the proposed skin-added X-lattice is demonstrated in this work by fabrication and mechanical characterization. (C) 2017 Elsevier Ltd. All rights reserved.
机译:这项研究提出了一种由波纹状肋骨和非常薄的皮肤组成的蒙皮X晶格复合结构,作为各向异性网格复合材料的替代形式,以实现压缩载荷下的高效轻质结构概念。数值分析了添加蒙皮的X晶格结构的高机械性能,然后介绍了相关的制造方法。该制造过程由瓦楞单元的制备和薄皮肤单元的共固化组成。制成的X晶格板的压缩测试结果与屈曲载荷和屈曲模式方面的数值预测吻合,而蒙皮X晶格板的屈曲载荷比预测值低。通过制造和机械表征证明了建议的添加皮肤的X晶格的可行性。 (C)2017 Elsevier Ltd.保留所有权利。

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