Expanding engineering capabilities for technical & reinforcement textiles, towards novel applications

工业用纺织品(TTS)是通过纺织工艺制造的先进材料。它们的独特性能源于将高性能合成纤维组合成复杂的纺织结构。复合材料用增强纺织品(RTS)就是TTS的一个例子。与所有工程材料一样，TTS必须满足严格的性能指标。然而，TTS与其他材料有很大的不同：i)允许大应变和大位移的非线性、非弹性本构行为使宏观结构能够发生巨大变化；ii)可变的微尺度和中尺度结构强烈地改变特性，如电阻；以及iii)特性，如对液体的渗透性是高度方向性的。此外，所有规模的配置的可变性导致性能的可变性更高。这项建议的核心方法是扩大与工业纺织品(TTS)专业领域相关的基本知识，远远超出工业纺织品复合材料制造中出现的更有针对性和更具分界性的问题。该提案以PI的专业知识为基础，探讨了较少受到关注的具有挑战性的问题。提出了一般的申请，并确定了蓝天合作者，但该提议与任何商业案例或TRL考虑无关。这项工作围绕四个主题展开，它们在微观、中观和宏观尺度上探索纺织品结构和物理性能之间的联系。所有主题都有实验工作支持的分析基础。-主题A：具有多个约束的纺织结构的大规模变形和配置。-主题B：使用电阻网络检查变形的碳多层堆栈。主题C：悬浮物在结构化多孔介质中的高速流动。-主题D：结构纺织品和高拉伸载荷下的柔性复合材料的结构。该计划最重要的影响是培训了12名HPQ，他们在多学科的背景下，通过各种方法从事新兴主题和应用的工作，以及体现不同利益相关者不同视角的蓝天合作者。根据NSERC的政策，PI积极致力于积极追求与EDI相关的目标，这进一步加强了该计划。PI之前的发现拨款主要针对与复合材料加工有关的根本性创新，特别是对干式TR结构的IR探测。目前的发现号提案进一步扩大了创新的范围，进入了高负载RR的新兴应用，这是另一种干碳RR的新检查方法，以及没有立即应用于复合材料的具体挑战。该提案的特点是主题不同但又相互关联，它为中期接触不同学科的合作者以及长期接触更广泛的技术转让研究人员和工程师提供了可靠的途径。

Technical textiles (TTs) are advanced materials created through textile processes. Their unique properties arise from combining high performance synthetic fibres into complex textile structures. Reinforcement textiles (RTs) for composites are one example of TTs. Like all engineered materials, TTs must meet stringent performance metrics. However, TTs differ strongly from other materials: i) non-linear, non-elastic constitutive behaviour permitting large strains and displacements enable large changes in macroscale configuration; ii) variable microscale and mesoscale configurations strongly alter properties such as electric resistance; and iii) properties such as permeability to liquids are highly directional. Furthermore, variability in configuration at all scales leads to higher variability in performance. The central approach of this proposal is to expand fundamental knowledge related to the PI's area of expertise on technical textiles (TTs), well beyond more targeted and delimited questions arising from industrial textile composites manufacturing. The proposal builds on the PI's expertise and probes challenging questions that have received less attention. General applications are proposed and blue-sky collaborators are identified but the proposal is not related to any business case or TRL consideration. The work is articulated around 4 themes, related in that they explore links between textile structure and physical properties at the microscale, mesoscale and macroscale. All themes have an analytical foundation supported by experimental work. -Theme A: Large-scale deformations and configurations of textile structures with multiple constraints. -Theme B: Inspection of deformed carbon multilayer stacks using electrical resistive networks. -Theme C: High-speed flow of suspensions through structured porous media. -Theme D: Configuration of structural textiles and flexible composites under high tensile loads. The foremost impact of the program is the training of 12 HPQ working on emerging topics and applications through a wide variety of approaches, in a multidisciplinary context, along with blue-sky collaborators who embody the varied perspectives of different stakeholders. The program is further enhanced by the PI's enthusiastic commitment to active pursuit of EDI-related objectives as promoted under NSERC policy. The PI's previous Discovery grant targeted fundamental innovation primarily related to composites processing, notably IR probing of dry TR structures. The present Discovery proposal widens the scope of innovation much further, into emerging applications of highly loaded TRs, another new inspection method for dry carbon TRs, and specific challenges with no immediate application to composites. The proposal features themes that are distinct yet related, and it offers credible paths for reaching collaborators in different disciplines in the mid-term, and the wider community of TT researchers and engineers in the long-term.