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Methods to increase structural performance, strength and durability of fabric-reinforced composite materials by pre-stressing

机译：通过预应力提高织物增强复合材料的结构性能，强度和耐久性的方法

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摘要

Methods to increase structural performance, strength, and durability of textile-reinforced composite materials are provided. The textile reinforcement may be knitted, for example, in a flat bed weft knitting machine. The method may include pre-stressing a textile reinforcement preform by applying tension. A polymeric precursor may be introduced to the pre-stressed textile reinforcement preform. The polymeric precursor may then be cured or consolidated, followed by releasing of the applied tension to form the composite article comprising polymer and the pre-stressed textile reinforcement. In other aspects, a composite article is provided that has a pre-stressed textile reinforcement structure and a cured polymer. The textile reinforcement may be a knitted, lightweight, seamless, unitary structure. The knitted reinforcement structure may have distinct first and second knitted regions with different levels of pre-stress, thus providing enhanced control over strength, rigidity, and flexibility of the composite article.

机译：提供了提高织物增强复合材料的结构性能，强度和耐久性的方法。织物增强物可以例如在平板纬编机中编织。该方法可以包括通过施加张力对织物增强预成型件进行预应力。可以将聚合物前体引入到预应力织物增强预成型件中。然后可以将聚合物前体固化或固结，随后释放所施加的张力以形成包含聚合物和预应力织物增强材料的复合制品。在其他方面，提供了一种复合制品，其具有预应力的织物增强结构和固化的聚合物。织物增强件可以是编织的，轻质的，无缝的整体结构。所述编织增强结构可以具有不同的第一编织区域和第二编织区域，所述第一编织区域和第二编织区域具有不同的预应力，因此提供了对所述复合制品的强度，刚度和柔韧性的增强控制。

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公开/公告号US10576670B2

专利类型
公开/公告日2020-03-03

原文格式PDF
申请/专利权人 THE REGENTS OF THE UNIVERSITY OF MICHIGAN;
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申请/专利号US201514854175
发明设计人 ANTHONY M. WAAS;SEAN AHLQUIST;JONATHAN WESLEY MCGEE;
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申请日2015-09-15
分类号B29C45/14;D06M15/19;D06M15/507;D04B15/66;D06M15/59;D06M15/564;B29C45/72;D06B1/10;D06M10/10;D06M15/55;B29C70/48;B29C70/56;B29B11/16;D04B37/02;D04B1/10;D04B1/22;B29C70/22;D06M15/70;D06M15/41;D06M101/40;D06M101/36;B29K63;B29K105/08;B29K709/08;D06M101/20;
国家 US
入库时间 2022-08-21 11:27:31

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