This study proposed effective finite element methods for simulating the fillet welding process on T-shaped joints. The T-shaped fillet welded joints were fabricated, and the process was simulated by a Continuous Distributed heat input method (CD method) and combining shell and solid elements. This study compared the models by the Discontinuous Uniform heat input method (DU method) and the CD method. The results showed that the CD method not only simplified the modeling process but also reduced the calculation time compared to the DU method. Furthermore, combining solid and shell elements reduced the number of nodal points in the models. The calculation time of the models by the element combination was significantly reduced. By comparing with experiments, it was shown that the CD heat input method and the combination of solid and shell elements could save calculation time while keeping the analysis accuracy.

中文翻译：

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连续分布式热输入和元件组合角焊过程的有效有限元模拟方法


本研究提出了有效的有限元方法来模拟 T 形接头的角接焊接过程。制作了T形角焊缝接头，并通过连续分布式热输入法（CD法）结合壳和实体单元对过程进行了模拟。本研究比较了不连续均匀热输入法（DU 法）和 CD 法的模型。结果表明，与DU方法相比，CD方法不仅简化了建模过程，而且减少了计算时间。此外，结合实体和壳单元减少了模型中的节点数量。单元组合模型的计算时间显着减少。通过与实验对比表明，CD热输入法和实体与壳单元相结合可以在保证分析精度的同时节省计算时间。