Mechanical response of Ti–6Al–4V octet-truss lattice structures

Mechanical properties of copper octet-truss nanolattices

We investigate the mechanical properties of copper (Cu) octet-truss nanolattices through a combination of classical molecular dynamics (MD) simulations and theoretical analysis. The MD simulations show that Cu nanolattices with high relative density are stronger than bulk Cu, while also achieving higher strength at a lower relative density as compared to Cu meso-lattices. We demonstrate that mo...

Hybrid carbon fiber composite lattice truss structures

Lattice truss structures from expanded metal sheet

Metallic lattice truss structures are usually made by perforating a metal sheet with a periodic diamond pattern followed by folding at node rows to create a plate of 3D interconnected trusses. For low relative density lattices, the initial sheet material is inefficiently utilized, and the node area is small raising concerns about node bond robustness under shear or tensile loading. Here, we exp...

Influence of post-processing on Ti6Al4V lattice structures produced by Selective Laser Melting

Selective laser melting (SLM) is a novel technique being increasingly used for the production of porous structures with a high degree of precision and near net shape. These porous materials are finding their use in the biomedical industry for implants. In this thesis, the effect of post-processing using hot isostatic pressing (HIP) and surface modification techniques, such as chemical etching a...

Planning the reconfiguration of grounded truss structures with truss climbing robots that carry truss elements Citation

In this paper we describe an optimal reconfiguration planning algorithm that morphs a grounded truss structure of known geometry into a new geometry. The plan consists of a sequence of paths to move truss elements to their new locations that generate the new truss geometry. The trusses are grounded and remain connected at all time. Intuitively, the algorithm grows gradually the new truss struct...