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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >LATERAL COMPACTION EFFECTS IN BRAIDED STRUCTURES
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LATERAL COMPACTION EFFECTS IN BRAIDED STRUCTURES

机译：辫状结构中的横向压实效应

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摘要

This paper addresses the phenomenology of strand interaction in biaxial non-embedded braided textile structures under uniaxial tension. The specific interest in the development of new braided textile structures is a result of the shortcomings of current rope, belt, and cable performance under large strain controlled conditions. However, this work also holds particular significance in the area of textile composite preforms. In composites forming, the lateral strand compaction mechanism, which drives braid behavior under tension, may be applied to woven fabrics for predicting wrinkling during forming processes. Additionally, manufacturing models produced in this study may be used to predict shape and size limitations of braided composite preforms. In this paper, a generalized model is developed for these structures with the intent of characterizing and predicting mechanical behavior. The methodology consists of a modular framework, which includes the prediction of manufacturing parameters. Lateral strand compaction tests were performed to generate constitutive material curves for use in analytical geometric models. Model predictions correlate well with data generated from braid uniaxial tension tests. Results suggest that lateral strand strain drives braid tensile behavior.
机译：本文探讨了单轴张力下双轴非嵌入式编织织物结构中股线相互作用的现象。对新型编织纺织结构的特别关注是在大的应变控制条件下当前的绳索，皮带和电缆性能的缺陷所致。但是，这项工作在纺织品复合材料预成型坯方面也具有特殊意义。在复合材料成型中，可在张力下驱动编织行为的横向股线压实机制可应用于机织织物，以预测成型过程中的起皱。此外，本研究中产生的制造模型可用于预测编织复合材料预成型坯的形状和尺寸限制。在本文中，针对这些结构开发了通用模型，旨在表征和预测机械行为。该方法包括一个模块化框架，其中包括制造参数的预测。进行了横向股线压实测试，以生成用于分析几何模型的本构材料曲线。模型预测与编织单轴拉伸试验生成的数据很好地相关。结果表明，横向股应变驱动编织物的拉伸行为。

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