...
  • 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 >Fatigue Life Prognosis Study of Welded Tubular Joints in Signal Support Structures
【24h】

Fatigue Life Prognosis Study of Welded Tubular Joints in Signal Support Structures

机译：信号支撑结构中焊接管接头的疲劳寿命预测

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

Welded tubular joints have exhibited vulnerability to fatigue cracks. This paper presents the research on fatigue life prognosis study of steel welded tubular joints from traffic signal support structures. Fatigue testing results of six full-scale steel welded tubular joint specimens of signal support structures are first discussed. In order to predict the fatigue behavior for welded tubular structure and estimate its fatigue life, a fatigue life prognosis procedure based on Bayesian updating of the stochastic coefficients of the fatigue growth model is employed. Bayesian updating allows the use of dynamic diagnostic information with prior knowledge for improved prognosis. Surface fatigue crack growth data are recorded during fatigue tests of three specimens and the experimental data is used to demonstrate the fatigue life prognosis procedure for welded tubular structures. The prognosis results of this study provide insight into how fatigue hazard evolves in welded tubular joints of signal support structures.
机译：焊接的管状接头对疲劳裂纹表现出脆弱性。本文提出了交通信号灯支撑结构钢制焊接钢管接头疲劳寿命预测研究。首先讨论了六个信号支撑结构全尺寸钢制焊接管状接头试样的疲劳测试结果。为了预测焊接管状结构的疲劳行为并评估其疲劳寿命，采用了基于疲劳增长模型随机系数的贝叶斯更新的疲劳寿命预测程序。贝叶斯更新允许使用具有先验知识的动态诊断信息来改善预后。在三个样品的疲劳测试过程中记录了表面疲劳裂纹扩展数据，并使用实验数据来证明焊接管状结构的疲劳寿命预测程序。这项研究的预后结果提供了对信号支撑结构的焊接管状接头中疲劳危险如何演变的见解。

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