Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
Weight lighter is an essential technology in the aviation industry. Lattice structure has a very potential as a lightweight. Also Lattice structure has facilitated produced in 3D printers. However, 3D printer is under development, and has left a lot of challenges. In previous paper (2), in a tensile test of the lattice structure manufactured by the 3D printer, the maximum load of the test specimen was less than the maximum load of the analysis model. We predicted that the large surface roughness of the specimen is the cause. For its verification, we created detailed specimen CAD model including the roughness using an X-ray micro-CT scan. As a result of FEM analysis, the maximum load of the specimen manufactured by the 3D printer was found to be reduced.
