WrapToR composite truss joints: Concept introduction and coaxial joint analysis and demonstration

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2024-11-09 DOI:10.1016/j.compositesa.2024.108573

Mengzhou Zhao, Terence Macquart, Benjamin K.S. Woods

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引用次数: 0

Abstract

This study focuses on the development of coaxial continuously wound joint structures for Wrapped Tow Reinforced (WrapToR) trusses, which are carbon fibre composite lattice beams fabricated through a unique winding process. WrapToR truss beams have shown very high levels of performance as beam-like structures, but their usefulness can be greatly extended by using them as members within hierarchical space frames, which can be made into more geometrically complex and generally useful structures. However, the key challenge lies in creating effective joint structures able to connect together multiple WrapToR beams of different sizes and orientations. This paper addresses this challenge by presenting a modified WrapToR winding process which enables three-dimensional winding of arbitrary space frame joints, with an initial focus here on a proof of concept coaxial joint. This includes the design and manufacturing of a coaxial joint demonstrator and the development of a finite element analysis tool to predict its mechanical performance. A cantilevered beam structure combining this joint with two different sizes of WrapToR truss is built and tested, showing high levels of bending rigidity and good agreement with numerical prediction. Following this, the analysis tool is used to explore the achievable design space for coaxial WrapToR joints.

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WrapToR 复合材料桁架接头：概念介绍和同轴接头分析与演示

本研究的重点是开发用于缠绕缆索加固（WrapToR）桁架的同轴连续缠绕连接结构，这种桁架是通过独特的缠绕工艺制造的碳纤维复合材料格构梁。WrapToR 桁架梁作为梁状结构已显示出极高的性能，但如果将其用作分层空间框架内的构件，则可大大扩展其用途，使其成为几何结构更复杂、用途更广泛的结构。然而，关键的挑战在于如何创建有效的连接结构，将多个不同尺寸和方向的 WrapToR 梁连接在一起。本文针对这一挑战，介绍了一种经过改进的 WrapToR 卷绕工艺，该工艺可对任意空间框架接头进行三维卷绕，最初的重点是同轴接头的概念验证。这包括同轴接头演示器的设计和制造，以及预测其机械性能的有限元分析工具的开发。我们建造并测试了一个悬臂梁结构，该结构结合了该接头和两种不同尺寸的 WrapToR 桁架，显示出较高的弯曲刚度，并与数值预测结果十分吻合。随后，分析工具被用于探索同轴 WrapToR 接头的可实现设计空间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.