Carbon fibre textile composite for automotive applications

用于汽车应用的碳纤维纺织复合材料

• 批准号: 1834948
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1834948
• 关键词: Carbon; fibre; textile; composite; automotive

A JLR body structure must perform a significant number of functions including all of thoserequired for crash, NVH & durability attributes. JLR aspiration is that all of these attributesare assessed using virtual methods e.g. finite element models. The accuracy of these modelsdepends on 2 main inputs 1. Geometry (a true representation of the design) & 2. Materialmodels (how the design responds when loaded) - get either wrong & significant risk (timing,cost etc.) is added into a programme.Carbon Fibre Composites are a highly anisotropic material where effectively a new materialproperty is created every time a fibre angle, fibre size or fibre/resin ratio is changed, evenwithin the same nominal material grade. In order to optimise the usage of these textilematerials, their material properties must be understood.Rather than adopting a traditional test & measure approach to materials characterisation(which typically costs thousands of pounds per material, takes weeks to complete, and needsto be repeated if there is any change to any of the vast number of variables in the format ofthe composite material), we propose developing innovative virtual models of the material atthe micro-scale and then using these models to extract the macro-scale material propertiesrequired for vehicle attribute model inputs.

捷豹路虎车身结构必须执行大量的功能，包括碰撞、NVH和耐久性属性所需的所有功能。捷豹路虎的愿望是，所有这些属性都使用虚拟方法进行评估，例如有限元模型。这些模型的准确性取决于2个主要输入1.几何（设计的真实表现）& 2.材料模型（加载时设计如何响应）-错误和重大风险（时间，成本等）碳纤维复合材料是一种高度各向异性的材料，每当纤维角度、纤维尺寸或纤维/树脂比例发生变化时，即使在相同的标称材料等级内，也会有效地产生新的材料特性。为了优化这些纺织材料的使用，必须了解它们的材料特性。而不是采用传统的测试和测量方法来表征材料（通常每种材料花费数千磅，需要数周才能完成，并且如果复合材料的格式中的大量变量中的任何一个发生任何变化，则需要重复），我们建议在微观尺度上开发创新的材料虚拟模型，然后使用这些模型来提取车辆属性模型输入所需的宏观尺度材料属性。

项目成果

Accounting for sheared textile composite unit cell properties in macro FE simulations

在宏观有限元模拟中考虑剪切纺织复合材料晶胞特性

• 发表时间: 2019
• 作者: Song M

Multi-scale modelling of woven composites accounting for manufacturing deformations

考虑制造变形的编织复合材料的多尺度建模

• 发表时间: 2022
• 作者: Song Meng Yi

Mechanical modelling of a sheared textile composite unit cell

剪切纺织复合材料单元的机械建模

• DOI: 10.1088/1757-899x/406/1/012028
• 发表时间: 2018
• 期刊: Materials Science and Engineering
• 作者: Song M