Structural analysis of 3D printing parts

Abstract eng:
3D printing is a promising way for product manufacturing. However, some problems rising during 3D printing processes could decrease the accuracy and quality of the printed parts. In order to solve those problems, the printing processes need to be evaluated in advance to avoid likely defects. Although FEM is well adopted to do engineering simulations, finite element meshes for irregular objects always are irregularly distributed that the element meshes cannot match the horizontally-growing shapes of the parts during the additive process. Hence, FEM cannot be easily adopted for this type of simulation. On the contrary, the proposed method based on ... need element meshes, so its analysis models can be designed to match the horizontally-growing shapes to simulate ... printing processes. Furthermore, the proposed method adopts STL geometry, which is the main format used in 3D printing industry, as the only analysis model.

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