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

Pascal Mindermann,Bas Rongen,Götz T Gresser,Drilon Gubetini,Jan Knippers

doi:10.3390/ma14195509

Pascal Mindermann, Bas Rongen + Show 3 more

Open Access

https://doi.org/10.3390/ma14195509

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Abstract

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.

Highlights

The use of fiber-reinforced composite materials, such as carbon- and glass-fiberreinforced plastics (C/GFRPs), in construction has grown in popularity recently [1]
Based on the visual inspections related to the monitoring, the validity of the structural design can be confirmed
The monitoring concept could be effective and necessary for future projects. This verification will help to include robotic corelessoffilament winding The (RCFW) buildings in official regulations in the future, which is beneficial from a material point of view

Summary

Introduction

The use of fiber-reinforced composite materials, such as carbon- and glass-fiberreinforced plastics (C/GFRPs), in construction has grown in popularity recently [1]. They are extensively used in aerospace engineering [2] due to their superior mass-specific mechanical performance [3]. In times of resource scarcity [4], significant population growth [5], and increasing demand for building floor space [6], a material system that exhibits efficiency and sustainability will allow us to keep up with the required productivity of future decades. Composite reinforcement bars for concrete construction benefit from this. Flat textile composite patches are a promising alternative in the repair of existing buildings [7]

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