Building System and Material System Development for Long-Span, Fiber-reinforced Composite Structures

IntCDC Research Project 11-1

Innovating the coreless filament winding building system

The project developed coreless, filament-wound fiber-reinforced composite structures for long-span applications to achieve an increase in overall performance. Central aspects investigated in the project are:
- development of joint systems
- structural design strategies
- environmental impact
- architectural conceptualization

Connections are critical because changes in fiber direction and the accumulation of tension at these locations limit the mechanical performance and efficiency of the entire system. Structural design requires a comprehensive strategy between simulation and structural testing, as simulations cannot fully represent the complexity of the system. The use of fiber optic sensors and equivalent novel methods can provide much more insight into structural behavior. Another challenge is the environmental impact of the traditionally used carbon/fiberglass epoxy materials. Therefore, the project explored alternative materials and identified more sustainable options while quantifying the significance of bio-based epoxy systems. Finally, these challenges were holistically evaluated for architectural integration into the building system. As a result, the project developed methodological strategies to make the conceptual building system a future-proof solution for sustainable and efficient long-field structures.

Project Duration
July 2019 – June 2022 (First Phase of Cluster of Excellence IntCDC)

Project Team
ICD Institute for Computational Design and Construction, University of Stuttgart
Prof. Dipl. AA (Hons) Achim Menges, Niccolò Dambrosio

ITKE Institute of Building Structures and Structural Design, University of Stuttgart
Prof. Dr.-Ing. Jan Knippers, Marta Gil Pérez

ITFT Institute for Textile and Fiber Technologies, University of Stuttgart
Prof. Dr.-Ing. Götz T. Gresser, Pascal Mindermann

Publications within the scope of this project
Integration of fiber optic sensors in the coreless winding process and on the analysis methods for structural analysis can be found here:
Mindermann, P., Gil Pérez, M., Kamimura, N., Knippers, J., & Gresser, G. T. (2022). Implementation of fiber-optical sensors into coreless filament-wound composite structures. Composite Structures, 290, 115558. https://doi.org/10.1016/j.compstruct.2022.115558
Analysis of more sustainable fiber materials and their comparison for the coreless filament winding process can be found here:
Mindermann, P., Gil Pérez, M., Knippers, J., & Gresser, G. T. (2022). Investigation of the Fabrication Suitability, Structural Performance, and Sustainability of Natural Fibers in Coreless Filament Winding. Materials, 15(9), 3260. https://doi.org/10.3390/ma15093260

Funding
This research was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC 2120/1 – 390831618.

Further information
Homepage Cluster of Excellence Research Project 11-1

Contact

This image shows Dr.-Ing. Pascal Mindermann

Dr.-Ing. Pascal Mindermann

 

Research Associate (Postdoc)

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