An integrated approach toward digital design and structural integrity analysis of out-of-autoclave composites under fatigue loading

疲劳载荷下非热压罐复合材料的数字设计和结构完整性分析的集成方法

• 批准号: RGPIN-2022-04403
• 负责人: Abdin, Yasmine
• 金额: $ 2.04万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=758186
• 关键词: integrated; approach; toward; digital; design

Fiber reinforced polymer (FRPs) composite materials have gained significant attention in high-performance applications owing to their high specific strength and stiffness benefits. To date, there are no available design tools that can efficiently and accurately predict the fatigue and in-service failure behavior of composite materials based on actual manufacturing conditions. For this reason, current use of composites is based on extensive, lengthy and costly testing which result in significant delays in introducing new composites into the market and their deployment in high-performance applications. The availability of such design tools is urgently needed today with increasing market demands for high-performance composites and the accompanying need for cost-effective and more agile approaches to composite manufacturing to meet those demands. The research will focus on Out-of-Autoclave (OOA) processing of FRPs as an alternative to the traditional high-pressure autoclave curing process commonly used for composites manufacturing. OOA technology enables composites to be produced using only vacuum pressures. These techniques have gained increased attraction in high performance industries. This is because despite autoclave processing advantages in producing high-quality products, it requires a much larger capital investment, complicated maintenance, higher temperatures and cure cycles times. The economic advantages to produce composites at lower cost with the OOA processing increases the utilization of composite components in industries such as aerospace, automotive, marine, wind turbines and leverage their advantages in reducing GHG emissions. However, compared to traditional autoclave components, OOA processing results in additional challenges in part quality control and defect formation, especially uncertainties in part thickness, fiber misalignments, and most importantly voids. The objective of this work is to develop an integrated modelling framework linking the manufacturing of OOA composites and inherent induced defects to the final composite's performance (process-structure-property relationship) under static and fatigue loading. This will facilitate the efficient design of OOA composites and enable the assessment of their structural integrity, and hence will accelerate their integration into industrial applications. 4 HQP (2MASc and 2 PhD) will undertake the proposed research program. The trained HQP will gain expertise in composites manufacturing, characterization and testing methods, damage monitoring, Finite Element modelling, coding and scripting. The HQP will also develop key interdisciplinary skills such as technical writing, presentation, and public speaking skills. Being a part of the Composites Research Network (CRN), HQP will have the unique opportunity to collaborate, and network with world-leading composites industries (e.g. Toray, Boeing, and others) leveraging the CRN's long-standing industrial collaborations.

纤维增强聚合物（FRP）复合材料由于其高比强度和刚度的优点而在高性能应用中获得了显著的关注。迄今为止，还没有可用的设计工具，可以有效地和准确地预测疲劳和在实际制造条件下的复合材料的服务故障行为。出于这个原因，目前复合材料的使用是基于广泛的，漫长的和昂贵的测试，这导致在将新的复合材料引入市场及其在高性能应用中的部署方面的显著延迟。如今，随着市场对高性能复合材料的需求不断增加，以及随之而来的对具有成本效益且更敏捷的复合材料制造方法的需求，迫切需要此类设计工具的可用性来满足这些需求。 该研究将集中在玻璃钢的高压釜外（OOA）加工，作为复合材料制造中常用的传统高压釜固化工艺的替代品。OOA技术使复合材料能够仅使用真空压力生产。这些技术在高性能工业中获得了越来越大的吸引力。这是因为尽管高压釜加工在生产高质量产品方面具有优势，但它需要更大的资本投资，复杂的维护，更高的温度和固化周期时间。利用OOA工艺以较低成本生产复合材料的经济优势增加了复合材料部件在航空航天、汽车、船舶、风力涡轮机等行业的利用率，并利用其优势减少GHG排放。然而，与传统的高压釜组件相比，OOA处理在零件质量控制和缺陷形成方面带来了额外的挑战，特别是零件厚度、纤维错位以及最重要的空隙方面的不确定性。 这项工作的目的是开发一个集成的建模框架，将OOA复合材料的制造和固有的诱导缺陷与静态和疲劳载荷下最终复合材料的性能（工艺-结构-性能关系）联系起来。这将有助于OOA复合材料的有效设计，并能够评估其结构完整性，从而加速其融入工业应用。 4名HQP（2名MASc和2名PhD）将承担拟议的研究计划。经过培训的HQP将获得复合材料制造，表征和测试方法，损伤监测，有限元建模，编码和脚本方面的专业知识。HQP还将培养关键的跨学科技能，如技术写作，演讲和公开演讲技能。作为复合材料研究网络（CRN）的一部分，HQP将有独特的机会与世界领先的复合材料行业（如东丽，波音等）合作，利用CRN的长期工业合作。