期刊
FINITE ELEMENTS IN ANALYSIS AND DESIGN
卷 197, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.finel.2021.103607
关键词
Additive manufacturing; Fused deposition; Thermomechanical coupling; Finite elements
The novel finite element-based simulation method proposed in this study achieves full coupling between mechanical and thermal responses under the assumptions of infinitesimal deformation and finite temperature variation. The method deposits new elements on the current configuration to account for continuous temperature-induced changes in geometry, while solving governing equations on a reference configuration based on the desired shape. Representative simulations were conducted to evaluate the predictive capacity of the method and the impact of thermomechanical coupling on the final shape of the printed solid.
A novel finite element-based simulation method is proposed for fused deposition modeling in two dimensions. The method assumes full coupling between the mechanical and thermal response under the assumptions of infinitesimal deformation and finite temperature variation. To account for continuous temperature-induced changes in the geometry, new elements are deposited on the current configuration, while the governing equations are solved on a reference configuration generated based on the desired shape. Representative simulations are conducted to assess the predictive capacity of the method, as well as the effect of thermomechanical coupling on the final shape of the printed solid.
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