M.F. Arif, E. Nurfani, W.S. Sipahutar, R. Ferdiyanto, K. Rajagukguk, A. Muhyi
Lattice structures have been widely used in engineering applications due to their lightweight properties. In this work, a fused deposition modeling (FDM) type of 3D printer was used to fabricate the lattice structures. Specimens with a unit cell of FCC, FCCZ, BCC, BCCZ, FBCC and FBCCZ were fabricated. A snap-fit joining method was used to obtain the lattice structures with superior mechanical properties. It was observed that the lattice structures with Z strut component showed higher strength and modulus due to the normal force that effectively transferred the compressive load. The specimens without Z strut exhibited lower strength and modulus because the load was dominantly transferred in bending mode. It can be concluded that compress mode was more efficient to absorb the mechanical energy than the bending mode. The current results could open up ways of effective design of lattice structures for mechanical energy absorption applications. © 2023 Author(s).
Materials Engineering Department, Institut Teknologi Sumatera, Lampung Selatan, Indonesia; Mechanical Engineering Department, Institut Teknologi Sumatera, Lampung Selatan, Indonesia
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