Polynomial‐basis response surface method has some shortcomings for truss structures in structural optimization, concluding the low fitting accuracy and the great computational effort. Based on the theory of approximation, a response surface method based on Multivariate Rational Function basis (MRRSM) is proposed. In order to further reduce the computational workload of MRRSM, focusing on the la...

In the present study, the dynamic compressive behavior of aluminum-alloy-based tetrahedral-core truss structures is investigated as a function of impact velocity using a split Hopkinson pressure bar. The results are used to understand the phenomenon of buckling in truss structures as a function of loading rates and test temperatures, and its implication on the dynamic crush resistance of tetrah...

The most effective scheme of truss optimization considers the combined effect of topology, shape and size (TSS); however, most available studies on truss optimization by meta-heuristics concentrated on one or two of the above aspects. The presence of diverse design variables and constraints in TSS optimization may account for such limited applicability of meta-heuristics to this field. In this ...

On-orbit assembly technology is a key for future large-scale structure construction. For several decades, many concepts of space structures have been proposed and some of them have the idea of robotic construction systems. Authors have developed a concept of a truss joint system for largescale orbital structures and worked for space robotics research. Participating aJapanese space robotics expe...

Topology optimization is a fertile area of research that is mainly concerned with the automatic generation of optimal layouts to solve design problems in Engineering. The classical formulation addresses the problem of finding the best distribution of an isotropic material that minimizes the work of the external loads at equilibrium, while respecting a constraint on the assigned amount of volume...

Tessellating a periodic unit cell of lattice material to fill design space in complex geometries has many challenges arising from their computer-aided (CAD) modeling intricacy. A solution this difficulty is the use trimmed micro-truss structures with conformal net. This paper presents novel algorithm for constructing net as wireframe one-dimensional line segments suitable Bravais cubic symmetri...

3D printing technology has revolutionized and gradually transformed manufacturing across a broad spectrum of industries, including healthcare. Nowhere is this more apparent than in orthopaedics with many surgeons already incorporating aspects of 3D modelling and virtual procedures into their routine clinical practice. As a more extreme application, patient-specific 3D printed titanium truss cag...