Computational design for WAAM elements

Computational design and manufacturing of a diagrid column

A computational design process (from the concept to the final design) of a WAAM-produced diagrid column has been developed. The conceptual design has been guided by solutions found in the scientific and technical literature. The final design is then fabricated half-scaled and presented in several important exhibitions.

Explorations of optimal layouts for planar elements

The WAAM orthotropic material model calibrated can be exploited in topology optimization algorithms to study optimal layouts depending upon the relative printing direction. Among different structural optimization procedures, a topology optimization (TO) algorithm has been adapted to the design of WAAM planar elements. The algorithm takes into account the particular features of the printed plates, especially with reference to the variation of stiffness with respect to the relative orientation to the printing direction.

Blended structural optimization for WAAM beams

A new approach called “blended” structural optimization, which blends topology optimization with basic principles of structural design and manufacturing constraints proper of WAAM technology, towards the realization of new efficient structural elements. The approach is applied to a case study of a I-type stainless steel beam on a multi-storey frame building.