首页> 外文期刊>Journal of Materials Engineering and Performance >Inverse Thermal Analysis of Alloy 690 Laser and Hybrid Laser-GMA Welds Using Solidification-Boundary Constraints
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Inverse Thermal Analysis of Alloy 690 Laser and Hybrid Laser-GMA Welds Using Solidification-Boundary Constraints

机译:用凝固 - 边界约束对合金690激光器和混合激光器-GMA焊缝的逆热分析

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摘要

An inverse thermal analysis of Alloy 690 laser and hybrid laser-GMA welds is presented that uses numerical-analytical basis functions and boundary constraints based on measured solidification cross sections. In particular, the inverse analysis procedure uses three-dimensional constraint conditions such that two-dimensional projections of calculated solidification boundaries are constrained to map within experimentally measured solidification cross sections. Temperature histories calculated by this analysis are input data for computational procedures that predict solid-state phase transformations and mechanical response. These temperature histories can be used for inverse thermal analysis of welds corresponding to other welding processes whose process conditions are within similar regimes.
机译:提出了一种对合金690激光和混合激光器-GMA焊缝的反向热分析,其使用基于测量的凝固横截面的数值分析基函数和边界约束。 特别地,逆分析程序使用三维约束条件,使得计算的凝固边界的二维投影被约束以在实验测量的凝固横截面内进行地图。 通过该分析计算的温度历史是预测固态相变和机械响应的计算过程的输入数据。 这些温度历史可用于对应于其他焊接过程的焊缝的逆热分析,其过程条件在类似的制度内。

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