Material Monitoring of a Composite Dome Pavilion Made by Robotic Coreless Filament Winding

Materials

Götz T. Gresser¹  Pascal Mindermann¹  Bas Rongen²  Jan Knippers²  Drilon Gubetini² 

[1] Institute for Textile and Fiber Technologies, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany;Institute of Building Structures and Structural Design, University of Stuttgart, Keplerstraße 11, 70174 Stuttgart, Germany;

关键词: robotic coreless filament winding;    lightweight dome structure;    on-site inspection;    thermal imaging;    scanning electron microscopy;    outdoor weathering;   

DOI  :  10.3390/ma14195509

来源: DOAJ

【 摘 要 】

A hemispherical research demonstration pavilion was presented to the public from April to October 2019. It was the first large-scale lightweight dome with a supporting roof structure primarily made of carbon- and glass-fiber-reinforced composites, fabricated by robotic coreless filament winding. We conducted monitoring to ascertain the sturdiness of the fiber composite material of the supporting structure over the course of 130 days. This paper presents the methods and results of on-site monitoring as well as laboratory inspections. The thermal behavior of the pavilion was characterized, the color change of the matrix was quantified, and the inner composition of the coreless wound structures was investigated. This validated the structural design and revealed that the surface temperatures of the carbon fibers do not exceed the guideline values of flat, black façades and that UV absorbers need to be improved for such applications.

【 授权许可】

Unknown