Abstract Scope |
Many structure and component designs require the use of multiple materials, which is currently a challenge for many additive manufacturing (AM) processes. One of the often noted issues with multi-material AM processes is the lack of interfacial strength with the structures caused by material incompatibility. In this work, the concept of mechanical interface design utilizing 3D cellular structures was explored for the design of interfaces for a simple bi-material beam structure. Various cellular unit cell topologies that represent different design rules were designed and evaluated. From the perspective of structure design, the effectiveness of different cellular topology designs for such purpose was investigated, which include criteria such as maximum failure strength, interface efficiency, ductility and toughness. The results aim to provide both feasibility and structural design guideline information for this interesting concept. |