...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Mechanica et Automatica >Analysis of Correlation between Stresses and Fatigue Lives of Welded Steel Specimens Based on Real Three-Dimensional Weld Geometry
【24h】

Analysis of Correlation between Stresses and Fatigue Lives of Welded Steel Specimens Based on Real Three-Dimensional Weld Geometry

机译：基于真实三维焊接几何的焊接钢样应力与疲劳寿命相关性分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Welded joints are areas of increased stresses in construction. The reason for this phenomenon is associated with the nonhomogeneous mechanical, structural and geometrical properties of the weld. In the article the correlations between locally raised stresses due to real geometry and fatigue lives of non-load carrying cruciform joints made from S355J2+N steel are analysed. Stresses were computed using Finite Element Method (FEM) based on real three-dimensional weld geometry obtained by 3D scanning. The specimens were experimentally tested under cyclic push-pull loading with a zero mean value of applied force. The correlation was analysed using Pearson’s correlation coefficient and statistical hypotheses. It was shown that statistically significant correlation exists between maximum values of normal stresses and fatigue lives.
机译：焊接接头是建筑中应力增加的区域。这种现象的原因与焊缝的不均匀的机械，结构和几何特性有关。在本文中，分析了由实际几何形状引起的局部应力与由S355J2 + N钢制成的非承载十字形接头的疲劳寿命之间的相关性。基于通过3D扫描获得的真实三维焊接几何形状，使用有限元方法（FEM）计算应力。在循环推拉载荷下以零均值施加力对样品进行实验测试。使用Pearson的相关系数和统计假设分析了相关性。结果表明，在正应力的最大值与疲劳寿命之间存在统计学上的显着相关性。

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