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Finite Element Analysis of Hyperbolic Paraboloid Composite Shells for Static Analysis Under Uniform Pressure

机译:均匀压力下静态分析静态分析的双曲抛物面复合壳有限元分析

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Composites are the materials combined from two different materials, cumulative properties of these materials are higher than each material individually. In fibre-reinforced composites, fibres are the primary load carriers enclosed in matrix to keep them in position. Composites have high-strength-to-weight ratio. In the present study orthotropic defined shell element is considered. Orientation of fibres with respect to reference axis defines the lamination as cross-ply or angle-ply. Hyperbolic paraboloids are doubly curved non-developable surfaces, when used in form of shell elements can sustain high stresses. Hyperbolic paraboloid shells have broad applications in civil engineering as they can cover large obstruction free areas. These shells are anticlastic shells and get their strength from their shape as the stresses are distributed in three dimensions.
机译:复合材料是从两种不同材料组合的材料,这些材料的累积性质单独高于各种材料。在纤维增强复合材料中,纤维是以矩阵封闭的主要载荷载体,以使它们保持在位置。复合材料具有高强度重量比。在本研究中,考虑了正交定义的壳元素。纤维相对于参考轴的取向将层压定义为交叉层或角度帘布层。双曲抛物面是双弯曲的非显式表面,当以壳体元素的形式使用时可以维持高应力。双曲抛物面壳在土木工程中具有广泛的应用,因为它们可以涵盖大型障碍区域。这些壳体是背斜弹性壳,并且随着应力分布在三个维度的情况下,它们的形状得到它们的强度。

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