1.江苏科技大学船舶与海洋工程学院，江苏镇江 212003； 2.江苏科技大学海洋装备研究院，江苏镇江 212003
Experiment on Strength of Ship Model based on FDM
Xia Tian1, Liu Kefeng1, Guo Qiao1, Yao Zhenqiu2
1. School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; 2. Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Abstract：The ship models which manufactured with a reduced scale was an important method of ship performance experimental researches. Using fused deposition molding (FDM) technology to manufacture ship models had the advantages of high precision, short cycle and low cost. Polylactide (PLA) was a mainstream material which was environmental protective and has the stable performance. However, due to the limitation of the molding size of mainstream equipment, segmented printing and then splicing is generally needed. Using samples of common thickness of 2, 3, 4 mm, which were manufactured in typical molding condition, the tensile strength and tensile modulus of PLA material and two spliced schemes were measured by tensile test. Further, the fracture reason of samples was analyzed by finite element simulation, and the experiment conclusion was confirmed, and the optimization suggestion was put forward. Through the practical application, it is proved that FDM technology can meet the strength requirements of ship model, and has greater advantages in manufacturing time and forming accuracy than traditional technology.
Keywords：fused deposition molding; polylactide; ship model; tensile strength; finite element simulation
Xia Tian，Liu Kefeng，Guo Qiao，et al. Experiment on Strength of Ship Model based on FDM[J]. Engineering Plastics Application，2019，47(9)：121-126.