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Δ-Span | Phase Changing Material Behaviour

This research focused on material behaviour using sodium acetate deposition, targeting to build a light, strong bridge of one meter spanning.

Studying the material behaviour, complexity, constraints and parameters were the factors to be considered.

It included in-depth exploration of the various deposition methods used for depositing sodium acetate.

Developing the methods, observing the constraints of the material and designing a truss system which could be used to span a meter-long bridge.

Various methods of material deposition were being implemented. When material was deposited in a vertical stream, it had a tendency to twist after certain height and break. It was working best when it was deposited in certain angles.

The angles of inclination, thickness of the members and the rules considered for constructing the geometry were some of the predominant factors considered. Different level of thickness were used for different areas of the geometry. The thickness kept on reducing as it moved to the center of the geometry.

The main components of the geometry were the base, spine, cross bracing and mesh pattern which supported by cross bracing. The base had the thickest member so as to take the load which is subjected to it. Deposition was done at certain angles so as to form strongest nodes which could take the weight of the profile. The spine was the main membrane which held the whole configuration together.

A tessellation pattern was formatted creating nodes junction at various levels. Various angles of inclination were used for the mesh pattern developed. Tests were performed to derive the angle of inclination to create the profile above. The angle of inclination was showed superior result was 70 degrees inclination. 

Moreover nParticles exploration was done using Maya simulation to explore on the different possible deposition methods digitally, by creating emitters of different numbers, sizes, angles and paths.  


Architectural Association, Design Research Lab

Research Team:

Andreas Y. Kyriakou, Ashwin B. Anandkumar, Jitesh Jadhav




London, UK

Research Development: