Description
With the recent advancements in additive manufacturing, engineers now have the capability to tailor the geometry in harmony with the base material in order to achieve superior performance. This allows for the production of metamaterials with extraordinary properties, such as negative stiffness, negative Poisson's ratio, and enhanced energy absorption capacity, surpassing the capabilities of traditional materials and structures. The adoption of such structures not only aligns with the principles of sustainable development but also promotes multifunctionality and substantial waste reduction. In this study, we evaluated negative stiffness architected materials using Ti6Al4V alloy, employing powder bed fusion 3D printers for manufacturing. Through experimental analysis, the results demonstrate the potential of architected materials for energy absorption and shape recovery. Moreover, by utilizing finite element analysis the tradeoffs between energy absorption, dissipation and shape recovery with respect to the elastic, elastic-plastic, and superelastic base materials are explored.
