Fig 6 - uploaded by Barbara Imhof
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Geometries of interlocking building elements from (a) 3D formfitting stackable elements; (b) 3D randomly packed aggregates; (c) 2.5-dimensional elements formfitted for curved and self-supporting vault construction; (d) 2D flat ground stabilizing elements for surface battlement; and (e) 2.5-dimensional elements formfitted for curved and self-supporting vault construction.

Geometries of interlocking building elements from (a) 3D formfitting stackable elements; (b) 3D randomly packed aggregates; (c) 2.5-dimensional elements formfitted for curved and self-supporting vault construction; (d) 2D flat ground stabilizing elements for surface battlement; and (e) 2.5-dimensional elements formfitted for curved and self-supporting vault construction.

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Additive manufacturing (AM) is one of the most promising techniques for on-site manufacturing on extraterrestrial bodies. In this investigation, layerwise solar sintering under ambient and vacuum conditions targeting lunar exploration and a moon base was studied. A solar simulator was used in order to enable AM of interlockable building elements ou...

Contexts in source publication

Context 1
... Elements with three-dimensional interlocking capacities, such as (1) 3D formfitting stackable (e.g., derived from Platonic geometries, comb-shaped) [ Fig. 6(a)]; and (2) 3D randomly packed aggregates [ Fig. ...
Context 2
... Elements with three-dimensional interlocking capacities, such as (1) 3D formfitting stackable (e.g., derived from Platonic geometries, comb-shaped) [ Fig. 6(a)]; and (2) 3D randomly packed aggregates [ Fig. ...
Context 3
... Elements with 2.5-dimensional interlocking capacities, namely those formfitted for curved and self-supporting vault construction elements [ Fig. ...
Context 4
... Elements with two-dimensional (2D) interlocking capacities, specifically flat ground stabilizing elements for surface battlement [ Fig. ...
Context 5
... the developed geometries, the tetrahedron-based geometry was chosen for AM under ambient conditions. The chosen element's center mass [ Fig. 6(d)] remains within the contact area ground projection during the construction phase, while following the appropriate stacking sequence. The center of mass of the dome segment is kept inside its footprint. The aim was to allow the erection of dome structures without the need of scaffolding during ...
Context 6
... was too large to accommodate the necessary resolution for a tetrahedron-based element with acute angles and building volume of 250 × 150 × 100 mm. Therefore, it was decided to develop an amended geometry, avoiding sharp angles. For AM under vacuum, because the chamber had a limited volume, a flat element (volume of 120 × 170 × 15 mm) was selected (Fig. ...