...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Parameter Optimization of Thermal Shrinkage Technique for Simple Numerical Simulation of Welding Angular Distortion
【24h】

Parameter Optimization of Thermal Shrinkage Technique for Simple Numerical Simulation of Welding Angular Distortion

机译：焊接角度失真简单数值模拟的热收缩技术参数优化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The thermal shrinkage technique, which uses shrinkage strain to determine weld distortion, shows promise as a simple simulation for predicting the weld distortion of large welded structures. To date, there has not been adequate research on how to set input data based on welding conditions. In this work, we perform a parametric study using thermal shrinkage technique in which we vary the input data to investigate the optimum setting method. To compare angular distortion obtained by the thermal shrinkage technique, Metal active gas welding was conducted under five welding conditions and thermal elastic-plastic analysis was conducted under the same welding condition. Under all five conditions, the angular distortion obtained by the thermal shrinkage technique accurately reproduced that obtained by experiments and by thermal elastic-plastic analysis. We found that the optimum input data settings were the shrinkage strain of -0.012 and a shrinkage zone in which the maximum temperature reached 500°C or more. From the results, the similarity and the difference between the characteristics of angular distortion in the thermal shrinkage technique and that in the thermal elastic-plastic analysis was discussed based on the inherent strain and the moment. Moreover, the way in which inherent strain based on the both-ends-fixed-bar analogy occurred can explain the agreement in angular distortion in the case of the optimum input data settings. Our results demonstrate that a suitable setting method of input data has been established.
机译：使用收缩应变来确定焊接失真的热收缩技术，示出了作为预测大焊接结构的焊接变形的简单模拟。迄今为止，还没有关于如何根据焊接条件设置输入数据的足够研究。在这项工作中，我们使用热收缩技术进行参数研究，其中我们改变输入数据来研究最佳设置方法。为了比较通过热收缩技术获得的角度失真，在五个焊接条件下进行金属活性气体焊接，并在相同的焊接条件下进行热弹性塑料分析。在所有五种条件下，通过热收缩技术获得的角度变形，准确地再现通过实验获得的和通过热弹性塑性分析获得的。我们发现最佳输入数据设置是-0.012的收缩应变和收缩区，其中最大温度达到500°C或更多。从结果，基于固有应变和矩的热收缩技术中角度变形特征与热弹性分析中的相似性和差异。此外，基于两端固定条比的固有菌株发生的方式可以在最佳输入数据设置的情况下解释角度失真的协议。我们的结果表明，已经建立了一个合适的输入数据的设置方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号