| Abstract Scope |
Cellular-based mechanical interface (CMI) for multi-material bonding overcomes various challenges associated with the low compatibility of material pairs for multi-material extrusion processes. By incorporating cellular structure designs in the interface design, tailored mechanical properties could be potentially achieved, which allows for the design of multi-material interfaces with properties that are partially decoupled from the intrinsic material compatibility. In this research, the design characteristics of triply-periodic minimal surface (TPMS)-based CMIs were investigated via both experimental study and numerical simulations. Multiple TPMS designs including the gyroid, Schwartz-D and diamond were investigated, and the relationship between level set field parameters and the resulting interface properties were investigated. The results provide the foundational understanding of the design effectiveness of TMPS-based CMI designs. Furthermore, the results also allowed for the comparison of the differences of design characteristics between surface-based cellular designs and strut-based surface designs that were previously reported. |