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Basic research on intrinsically produced FRP-/metal-composites - from embedded inserts to load-bearing hybrid structures

固有生产的 FRP/金属复合材料的基础研究 - 从嵌入式插入物到承载混合结构

基本信息

批准号：
255854000
负责人：
Professor Dr.-Ing. Jürgen Fleischer
金额：
--
依托单位：
Fraunhofer-Institut für Chemische Technologie (ICT)
依托单位国家：
德国
项目类别：
Priority Programmes
财政年份：
2014
资助国家：
德国
起止时间：
2013-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/255854000?language=en
关键词：
Basic research intrinsically produced FRP

项目摘要

Phase II of the project "basic research of intrinsically made FRP-/metal composites - from the embedded insert to load-bearing hybrid structure" deals with the production, the characterisation and the simulation of a CFRP/steel structural component. All project participants first transfer the knowledge gained in phase I of the project on load introducing elements, which are punctual and linear, to a differential design. This is based on the combination of several inserts and a subsequently attached metallic hat profile so as to obtain a hybrid component with a metallic, supporting component. An integral hybrid structure is to be derived from this. The CFRP/steel structural components should be intrinsically hybridised, i.e. in a direct production process. This hybridization is based on the use of a steel blade in the form of a hat profile, which is to be inserted by fiber in such a way that a structural load is optimally introduced into the CFRP laminate. Thus, the metallic component accepts a load-bearing function in the component, which provides by the intrinsic manufacturing advantages in terms of load capacity. By combining the advantages of both materials, the specific energy absorption capacity and the light construction potential can be increased. Possible applications are, for example, automobile body components, such as side impact carriers, B-pillars or transverse or longitudinal carriers. The wbk - Institute for Production Engineering deals with the production of differential and integral designs. The intrinsic production of the integral structure involves a systematic study of the associated process parameters in order to achieve a reproducible and high sample quality and thus to build up a comprehensive process understanding for complex components. Moreover, different introduction concepts and installation positions and an optimum ratio of FRP and metal are to be investigated. The institute for applied materials (IAM-WK) is concerned with the study of the integral and differential bearing structures under stresses close to the structural part, including the investigation according to the respective damage evolution, in order to obtain a comprehensive understanding of the process-structure-property relations. The institute of vehicle system technology (FAST) deals with the prediction of mold filling, residual stresses and failure behavior of the hybrid component under quasi-static bending stress, taking into consideration the production effects. Material behavior is characterized by using full-field optical measurement of the displacement and expansion field of samples exposed to thermal and mechanical loads. Furthermore, the structure simulation is coupled with the process simulation in order to be able to optimize the hybrid structure and the manufacturing process in a holistic way.

项目的第二阶段“FRP/金属复合材料的基础研究--从嵌入式嵌入物到承重混合结构”涉及CFRP/钢结构部件的生产、表征和模拟。所有项目参与者首先将项目第一阶段中获得的关于荷载引入元素的知识（这些元素是准时的和线性的）转移到差异设计中。这是基于几个插入件和随后附接的金属帽形轮廓的组合，以便获得具有金属支撑部件的混合部件。一个完整的混合结构是从这个衍生。CFRP/钢结构部件应在本质上混合，即在直接生产过程中。这种混合是基于使用一个钢刀片的形式，一个帽子的轮廓，这是插入纤维的方式，结构负载被最佳地引入到CFRP层压板。因此，金属部件在部件中接受承载功能，这通过内在的制造优势在承载能力方面提供。通过结合两种材料的优点，可以提高比能量吸收能力和轻质建筑潜力。可能的应用例如是汽车车身部件，例如侧面碰撞承载件、B柱或横向或纵向承载件。wbk -生产工程研究所处理微分和积分设计的生产。整体结构的内在生产涉及相关工艺参数的系统研究，以实现可再现的高样品质量，从而建立对复杂组件的全面工艺理解。此外，还将研究不同的引入概念和安装位置以及FRP和金属的最佳比例。应用材料研究所（IAM-WK）关注的是在接近结构部分的应力下的整体和差动轴承结构的研究，包括根据各自的损伤演化进行调查，以获得对过程-结构-性能关系的全面理解。车辆系统技术研究所（FAST）负责预测混合部件在准静态弯曲应力下的模具填充、残余应力和失效行为，并考虑生产影响。材料行为的特点是使用全场光学测量的位移和膨胀领域的样品暴露于热和机械负荷。此外，结构仿真与工艺仿真相结合，以便能够以整体的方式优化混合结构和制造工艺。