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CHOPPED PREPREGS - A COMPELLING PERFORMANCE AND COST ALTERNATIVE MATERIAL FORM

机译:切碎的预浸料 - 一种引人注目的性能和成本替代材料形式

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Chopped prepregs offer another material form for the composite engineers to consider. Some compelling reasons are performance parity, lower total costs, and easier transition from aluminum than continuous fiber composites. Structure - Parts made from chopped unidirectional prepreg will yield similar performance to hand layup continuous fiber composites when knockdown effects are considered. Much of the performance gain for the chopped prepreg material form comes from its low sensitivity to traditional knock down effects. Since the chopped prepreg form has inherent flaws due to stress concentrations at the ends of the short fibers, additional property losses due to holes for attachments, moisture absorption, etc., are minimal. In addition, this chopped material form can be made into complex geometrical shapes that use geometrical stiffening to give it a competitive advantage.
机译:切碎的预浸料坯为复合工程师提供另一种材料形式,以考虑。一些令人兴奋的原因是性能奇偶校验,较低的总成本,并且比连续纤维复合材料更容易地过渡。结构 - 由切碎的单向预浸料坯制成的零件将在考虑敲打效应时产生类似的手动叠层连续纤维复合材料。切碎的预浸料表局的大部分性能增益来自其对传统淘汰效应的低敏感性。由于切碎的预浸形形具有由于短纤维末端的应力浓度导致固有的缺陷,因此由于附着物,吸湿等的孔引起的额外性损失是最小的。此外,这种切碎的材料形式可以制成复杂的几何形状,这些形状使用几何加强来使其成为竞争优势。

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