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Optimized Design of Fiber Architecture for Pultruded Beams

机译:拉挤梁纤维结构的优化设计

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The goal of this paper is to present the design optimization of a reinforced plastic (RP) wide flange (WF) pultruded beam. A commercially available open section, WF 12x12x1/2, was selected to optimize the stiffness to weight ratio and to manufacture through pultrusion process. Two WF beams with optimized fiber architectures that include bi-directional fabrics were pultruded and tested in bending. A simple analytical model that predicts stiffness properties of pultruded sections based on properties of constituents is introduced. Analyticalexperimental correlations are presented. The optimized WF sections increased in bending stiffness by about 40percent over the existing unidirectional WF sections.
机译:本文的目的是提出增强塑料(RP)宽翼缘(WF)拉挤梁的设计优化。选择市售的敞口型材WF 12x12x1 / 2,以优化刚度与重量之比并通过拉挤成型工艺制造。拉挤了两个具有双向结构的优化纤维结构的WF梁,并进行了弯曲测试。介绍了一种简单的分析模型,该模型基于成分的特性预测拉挤型材的刚度特性。提出了分析实验的相关性。与现有的单向WF截面相比,优化的WF截面的弯曲刚度增加了约40%。

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