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

扩大技术工程能力

• 批准号: RGPIN-2020-04147
• 负责人: Robitaille, Francois
• 金额: $ 1.97万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=739475
• 关键词: Expanding; engineering; capabilities; technical; reinforcement

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.

技术纺织品（TTS）是通过纺织过程创建的高级材料。它们的独特特性是将高性能合成纤维结合到复杂的纺织结构中。复合材料的增强纺织品（RTS）是TT的一个例子。像所有工程材料一样，TT必须符合严格的性能指标。但是，TT与其他材料有很大的不同：i）非线性的，非弹性的本构行为，允许大型菌株和位移可实现宏观构型的巨大变化； ii）可变微观和中尺度构型强烈改变了诸如电阻之类的特性； iii）诸如渗透性之类的特性是高度方向性的。此外，在所有尺度上的配置变异性都会导致性能的差异更高。该提案的核心方法是扩大与PI技术纺织品专业领域（TTS）有关的基本知识，远远超出了工业纺织品复合材料制造业引起的更有针对性和划界的问题。该提案建立在PI的专业知识上，并探讨了受到较少关注的挑战性问题。提出了一般应用程序，并确定了蓝色的合作者，但该提案与任何业务案例或TRL的考虑无关。这项工作围绕4个主题阐明，因为它们探讨了微观，中尺度和麦克索尔的纺织结构与物理特性之间的联系。所有主题均具有实验性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：通过结构化多孔介质的悬浮液的高速流动。 - 主题D：在高拉伸载荷下结构纺织品和柔性复合材料的配置。该计划的最大影响是通过在多学科背景下通过多种方法与12种HPQ一起在新兴主题和应用程序上工作的培训，以及体现不同利益相关者的各种观点的蓝天合作者。根据NSERC政策促进的，PI对积极追求与EDI相关目标的积极追求的热情承诺进一步增强了该计划。 PI先前的Discovery Grant针对的基本创新主要与复合材料加工有关，尤其是对干燥TR结构的IR探测。目前的发现提案将创新的范围扩大到了高度负载TR的新兴应用，另一种针对干碳TR的新检查方法以及没有立即应用复合材料的特定挑战。该提案的主题具有与众不同但相关的主题，并且为在中期与不同学科的合作者以及TT研究人员和工程师的更广泛社区提供了可靠的途径。