A robotically woven carbon-fibre pavilion based on the lightweight shell encasing the wings and abdomen of a beetle is the second structure revealed this week from the team of architects and engineers at the University of Stuttgart (+ movie).
Like the Landesgartenschau Exhibition Hall unveiled on Tuesday, the ICD/ITKE Research Pavilion 2013-14 is a structure fabricated using a custom-built system of robotics, which were here used to create a series of modular fibre-composite components.
The project was developed by academics from University of Stuttgart's Institute for Computational Design (ICD) and Institute of Building Structures and Structural Design (ITKE), who have previously collaborated a pavilion based on a lobster's exoskeleton and a structure modelled on a sea urchin's skeleton.
"The project presents a novel approach to fibre-composite structures in architecture," explained ICD researcher and team member Marshall Prado.
"It is based on the development of a robotic fabrication process for modular, double layered fibre composite structures, which reduces the required formwork to a minimum while maintaining a large degree of geometric freedom. This enabled the transfer of functional principles of natural lightweight systems to architectural structures," he said.
The result is a double-domed pavilion with web-like walls and ceilings. It covers an area of 50 square metres, but weighs just 593 kilograms.
"It offers not only a unique architectural expression and spatial experience, it is also extremely lightweight and resource efficient," said Prado.
The team of researchers and students used high-resolution 3D models of various beetle shells – known as elytra – to conduct an analysis of the intricate internal structures, working closely alongside biologists and paleontologists from the University of Tuebingen.
"The performance of these lightweight structures relies on the geometric morphology of a double layered system and the mechanical properties of the natural fibre composite," they explained.
"The Elytra morphology is based on a double layered structure which is connected by column-like doubly curved support elements – the trabeculae. The fibre layout within a trabecula merges the upper and lower shell segments with continuous fibres," they said.
These structures were then translated into a series of design principles, realised using glass and carbon-fibre reinforced polymers to give the pavilion an optimum strength-to-weight ratio.
A robotic winding method was developed to fabricate each of the fibrous modules, which were impregnated with resin for addition strength. Two robots wound the fibres around the custom-made steel frames, and could be adapted to suit the propositions of all 36 necessary geometries.
"Coreless filament winding does not only save substantial resources through the needlessness of individual moulds, but in itself is a very material efficient fabrication process since there is no waste or cut-off pieces," said the team.
The project is part of an ongoing programme investigating how natural lightweight structures can be recreated using architecture. Each pavilion is researched and constructed over a period of 18 months.
Here's some additional project data from the University of Stuttgart:
Institute for Computational Design - Prof. Achim Menges
Institute of Building Structures and Structural Design - Prof. Jan Knippers
Research Development and Project Management
Moritz Dörstelmann, Vassilios Kirtzakis, Stefana Parascho, Marshall Prado, Tobias Schwinn
System Development and Realisation
WiSe 2012 – SoSe2013:Desislava Angelova, Hans-Christian Bäcker, Maximilian Fichter, Eugen Grass, Michael Herrick, Nam Hoang, Alejandro Jaramillo, Norbert Jundt, TaichiKuma, OndrejKyjánek, Sophia Leistner, Luca Menghini, Claire Milnes, Martin Nautrup, GerganaRusenova, PetarTrassiev , Sascha Vallon, ShiyuWie
WiSe 2013:Hassan Abbasi, Yassmin Al-Khasawneh, DesislavaAngelova, YuliyaBaranovskaya, Marta Besalu, Giulio Brugnaro, Elena Chiridnik, Eva Espuny, Matthias Helmreich, Julian Höll, Shim Karmin, GeorgiKazlachev, Sebastian Kröner, VangelKukov, David Leon, Stephen Maher, Amanda Moore, Paul Poinet, Roland Sandoval, Emily Scoones, DjordjeStanojevic, Andrei Stoiculescu, Kenryo Takahashi, Maria Yabloninasupportedby Michael Preisack
In cooperation with
Institute of Evolution and Ecology, Evolutionary Biology of Invertebrates, University of Tübingen - Prof. Oliver Betz
Department of Geosciences, Palaeontology of Invertebrates and Palaeoclimatology Universität Tübingen - Prof. James H. Nebelsick
University of Tübingen, Module: Bionics of animal constructions, WiSe 2012: Gerald Buck,
Michael Münster, Valentin Grau, Anne Buhl, Markus Maisch, Matthias Loose, Irene Viola
Baumann, Carina Meiser
ANKA / Institute for Photon Science and Synchrotron Radiation
Karlsruhe Institute of Technology (KIT) – Dr. Thomas van de Kamp, Tomy dos Santos Rolo, Prof. Dr. Tilo Baumbach
Institute for Machine Tools
University of Stuttgart – Dr.-Ing. Thomas Stehle, Rolf Bauer, Michael Reichersdörfer
Institute of Textile Technology and Process Engineering ITV Denkendorf - Dr. Markus Milwich
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