...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of steel structures >A simplified FE simulation method with shell element for welding deformation and residual stress generated by multi-pass butt welding
【24h】

A simplified FE simulation method with shell element for welding deformation and residual stress generated by multi-pass butt welding

机译：壳单元有限元模拟的简化方法，用于多道对接焊接产生的焊接变形和残余应力

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

In order to propose a simplified simulation method using finite element (FE) model for predicting deformation and residual stress generated by multi-pass butt welding, a series of experiments and numerical analyses were carried out. 3-pass butt welding of steel plates was simulated by the thermal elasto-plastic analysis with shell elements and with solid elements respectively. A heat input model for considering the temperature distribution in the thickness direction in shell elements was proposed. The validity of the heat input model was verified by comparing analytical results with experimental results or other analytical results using solid elements. Furthermore, the effectiveness for saving computing time by using shell elements was confirmed from the comparison with the case using solid elements. It was confirmed that the welding out-of-plane deformation and residual stress could be predicted with high accuracy by the proposed method. The computing time was around 14% of that by the precise model with solid elements.
机译：为了提出一种简化的模拟方法，使用有限元（FE）模型来预测多道次对接焊产生的变形和残余应力，进行了一系列实验和数值分析。通过热弹塑性分析分别以壳单元和实体单元对钢板进行三遍对接焊接。提出了一种考虑壳单元厚度方向温度分布的热输入模型。通过将分析结果与实验结果或其他使用固体元素的分析结果进行比较，验证了热输入模型的有效性。此外，与使用实体元素的情况相比，通过使用壳元素节省了计算时间的有效性得到了证实。证实了通过该方法可以高精度地预测焊接面外变形和残余应力。具有实体元素的精确模型的计算时间约为其的14％。

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