薄壁结构3D打印与数值计算统一网格的方法

I3D printing technology, based on digital model files, melts the printed materials in a certain way under the control of computer software and stacks them layer by layer into design objects. Thecommon printing format now is STL format, in which the whole printing object is formed after being covered by triangular blades without topological relations. Finite element numerical simulation is often used to analyze mechanical properties of 3D printed structures, which involves the partitioning of material partition properties of finite element mesh. This paper presents a method to transform 3D printing STL format and finite element calculation into uniform grid for thin-wall structure or complexsheet structure. Satisfactory results have been obtained through a variety of experiments on printing components and finite element calculation, providing a fast and practical technology integrating 3D printing and numerical computing grid.