Through capturing spectral data from a wide frequency range along with the spatial information, hyperspectral imaging (HSI) can detect minor differences in terms of temperature, moisture and chemical composition. Therefore, HSI has been successfully applied in various applications, including remote sensing for security and defense, precision agriculture for vegetation and crop monitoring, food/drink, and pharmaceuticals quality control. However, for condition monitoring and damage detection in carbon fibre reinforced polymer (CFRP), the use of HSI is a relatively untouched area, as existing non-destructive testing (NDT) techniques focus mainly on delivering information about physical integrity of structures but not on material composition. To this end, HSI can provide a unique way to tackle this challenge. In this paper, with the use of a near-infrared HSI camera, applications of HSI for the non-destructive inspection of CFRP products are introduced, taking the EU H2020 FibreEUse project as the background. Technical challenges and solutions on three case studies are presented in detail, including adhesive residues detection, surface damage detection and Cobot based automated inspection. Experimental results have fully demonstrated the great potential of HSI and related vision techniques for NDT of CFRP, especially the potential to satisfy the industrial manufacturing environment. Index Terms-Hyperspectral imaging (HSI); non-destructive inspection; carbon fibre reinforced polymer (CFRP); H2020. I. INTRODUCTIONMany sectors, including aerospace, maritime transportation, sports, and civil engineering, use carbon fiber-reinforced polymer composites (CFRP) as structural materials because of its unique properties of lightweight, high stiffness/strength and damping resistance [1, 2], as illustrated in Fig. 1(a). Components and products based on composites often have a lifespan of fewer than 20 to 30 years, e.g. 20-25 years for a wind turbine [3], and 10 years on average for recreational boats and vehicle bodies [4]. End-of-life (EoL) CFRP waste management is becoming increasingly important due to the rapidly developing demand for composites in industrial manufacturing. Nowadays, landfilling is still the most common waste management technique, which is reasonably inexpensive,

In order to improve the competitiveness on the global machine tool markets, a permanent development of new solutions and optimization of existing technologies is necessary. Besides traditional business areas, like Europe, Asia and the US, emerging countries provide interesting potential. Currently, the setup and operation of precise machine tools in these areas possesses some challenges. As an example, the foundation of the machines is often not as stable as assumed during the layout and design phase. Furthermore, the thermal boundary conditions are often characterized by much higher differences of the ambient temperature during the daily operational time compared to European conditions. These influences affect especially the performance of medium sized machine tools. Within the joint project HYBRIDi, funded by the Federal Ministry of Education and Research (BMBF) supported by the Projektträger Karlsruhe (PTKA), partners from industry and research created, realized and investigated new intelligent lightweight machine slide structures in order to overcome the named challenges. In particular, two variants of a hybrid material z-slide (RAM) with integrated sensors were built and analyzed with respect to advantages in terms of mass reduction, static and dynamic stiffness, dynamic positioning accuracy as well as thermal behavior. This paper presents the developments and results of the project.

No abstract

The design of reusable composite structures for cars needs high constructional effort. The car must be divided into separable modules meeting ecologic and economic requirements. Here, a battery containing platform and a seating structure were selected as large components with high potential for reuse. In a first step the desired car is described setting the basic scenario. A carsharing vehicle shows perfect conditions due to low logistics effort and the business model of the owner. This sets the boundary conditions for the design of the platform. Two different approaches were tested and merged into a concept ready for reuse. Simulations of the stiffness and the crash performance show good values. First large CFRP profiles were produced in a complex pultrusion process. An associated seating structure following similar design principles was constructed using profiles and nods. All load-cases that can occur during the utilization phase could be beared. Both modules together can form the basis of a reusable car. The design principles like detachable joints—in particular the utilization of detachable adhesive connections—can be adapted for any other technical composite product.

Faserverbundkunststoffe (FVK) haben sich längst in der Luft- und Raumfahrt etabliert und erobern zurzeit den Automobilsektor. Doch auch im Maschinen- und Anlagenbau werden die hervorragenden Eigenschaften dieses Materials interessiert beobachtet, was bereits zu ersten Anwendungen in diesem Bereich geführt hat. Hierbei sind Entwicklungen von Produktionsanlagen, welche mit Elementen in Leichtbauweise ausgestattet sind, das vorrangige Ziel von Ausrüstern im Maschinen- und Anlagenbau.