GRK 2078: Integrated engineering of continuous-discontinuous long fiber reinforced polymer structures

GRK 2078：连续-不连续长纤维增强聚合物结构的集成工程

• 批准号: 255730231
• 金额: --
• 依托单位: Fraunhofer-Institut für Chemische Technologie (ICT)
• 依托单位国家: 德国
• 项目类别: International Research Training Groups
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/255730231?language=en
• 关键词: GRK; 2078; Integrated; engineering; continuous

In the first funding period, Sheet Molding Compound (SMC) composites, being important representatives of discontinuous long fiber reinforced polymer structures with local continuous fiber reinforcements (CoDiCoFRP), have been systematically analyzed by the doctoral researchers of IRTG. This composite type is of importance for components with large lot sizes. By an intensive interaction of the doctoral researchers at KIT and the cooperation partners in Canada as well as with the PostDoc project for virtual process chain modeling, a first systematic step towards an integrated and experimentally proven concept for the manufacturing, modeling and dimensioning of combinations of discontinuously and continuously reinforced polymer structures has been established. An SMC based demonstrator has been designed, manufactured and analyzed. In the second funding period, the main focus will again lie on SMC but, additionally, also on long fiber reinforced thermoplastics (LFT). The methods developed for SMC will be applied for a more complex SMC demonstrator geometry. Thereby, a) the integrated engineering will be improved by further developing the interfaces between the different projects and methods and b) the physical mechanisms and geometrical microstructures governing the material and structural behavior will be better understood in order to establish robust methods in all research areas. The second generation will begin - in selected projects and subprojects - with research on LFT in order to ensure that the third doctoral generation will have a sufficient amount of data and mature methods to fully focus on LFT, which is also of crucial importance for leightweight structures with large lot sizes. The third generation will benefit from the research of two generations and will methodically work on LFT. The main objective of the third generation is the integrated engineering of continuous-discontinuous long fiber reinforced thermoplastics. Methodically, the more complex physical behavior of the matrix, the different arrangement of fibers and the resulting different matrix fiber interaction will be in the focus within the different research areas. This transfer of methods ensures that the potential of LFT for leightweight structures can be used due to the improved design of the manufacturing processes and structural components.

在第一个资助期间，IRTG的博士研究人员对片状模塑复合材料(SMC)复合材料进行了系统的分析，SMC复合材料是局部连续纤维增强不连续长纤维增强聚合物结构(CoDiCoFRP)的重要代表。这种复合类型对于批量较大的部件非常重要。通过KIT的博士研究人员和加拿大的合作伙伴以及与虚拟过程链建模的博士后项目的深入互动，已经朝着制造、建模和确定不连续和连续增强的聚合物结构组合的集成和实验验证的概念迈出了系统的第一步。设计、制造并分析了一台基于SMC的演示仪。在第二个资金期，主要重点将再次放在SMC上，此外，还将侧重于长纤维增强热塑性塑料(LFT)。为SMC开发的方法将应用于更复杂的SMC演示器几何形状。因此，a)通过进一步发展不同项目和方法之间的接口，将改进综合工程；b)将更好地了解控制材料和结构行为的物理机制和几何微观结构，以便在所有研究领域建立可靠的方法。第二代将在选定的项目和子项目中开始研究LFT，以确保第三代博士将拥有足够的数据和成熟的方法来完全专注于LFT，这对于大批量的轻量级结构也是至关重要的。第三代将受益于两代人的研究，并将有条不紊地研究LFT。第三代的主要目标是连续-不连续长纤维增强热塑性塑料的集成工程。从方法上讲，基质的物理行为越复杂，纤维排列的不同以及由此产生的不同的基质纤维相互作用将是不同研究领域的焦点。由于改进了制造工艺和结构部件的设计，这种方法的转移确保了LFT在轻量级结构中的潜力得以发挥。