Simulation analysis and experimental research of 3D printing self-positioning titanium mesh

doi:10.19438/j.cjoms.2023.05.002

Abstract

Abstract: PURPOSE: To validate the feasibility of 3D printing self-positioning individual titanium mesh, establish an efficient standardized self-positioning titanium mesh simulation model and perform fracture simulation analysis. METHODS: A standard self-positioning titanium mesh model was built by using 3D modeling design software SolidWorks. The details of the connection between the two ends of the titanium mesh and the locating wing were highlighted. Simulation software ANSYS Workbench was used to conduct fracture simulation analysis on the standardized self-positioning titanium mesh model indicated above, including deformation, strain, stress. Self-positioning titanium mesh for 3D printing was standardized and mechanical performance tests were performed. To verify the viability of the simulation model establishment, compare the fracture simulation analysis results were compared with mechanical performance test results, and the rationality of the self-positioning titanium mesh design and the feasibility of clinical application based on the results were further objectively evaluated. RESULTS: The mechanical test results were basically consistent with the simulation results, with an error of 13.4%-14.5%. According to the results of fracture simulation, the maximum equivalent total strain for a 40 N vertical load on titanium mesh was 4.275 2e-003; for a 45°bending force on the locating wing, the maximum equivalent total strain was 1.133 4e-002, less than the fracture strain (0.17) for TC4 titanium alloy material. In both cases, the maximum deformation was 0.190 55 mm and 1.111 80 mm. CONCLUSIONS: It is successful to create a standard self-positioning titanium mesh simulation model. An extensive analysis of the model's fracture simulation results revealed that titanium mesh would not fracture or deform excessively at the connection when subjected to a 40 N load coming from different directions, and the maximum deformation was within acceptable limits. Strong practicality exists for self-positioning individual titanium mesh.

Key words: Individuation titanium mesh, Self-positioning, Fracture simulation analysis, Finite element analysis, Design method

CLC Number:

R782

ZHANG Jia-yuan, YU De-dong, JI Min, LIN Hai-yan. Simulation analysis and experimental research of 3D printing self-positioning titanium mesh[J]. China Journal of Oral and Maxillofacial Surgery, 2023, 21(5): 432-438.

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