Steel and Composite Structures

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Ratcheting boundary of pressurized pipe under reversed bending

  • Chen, Xiaohui (School of Control Engineering, Northeastern University) ;
  • Chen, Xu (School of Mechanical Engineering & Automation, School of Tianjin University) ;
  • Li, Zifeng (School of Mechanical Engineering & Automation, Yanshan University)
  • Received : 2018.11.07
  • Accepted : 2019.06.10
  • Published : 2019.08.10
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Abstract

Ratcheting boundary is firstly determined by experiment, elastic-plastic finite element analysis combined with C-TDF and linear matching method, which is compared with ASME/KTA and RCC-MR. Moreover, based on elastic modulus adjustment procedure, a novel method is proposed to predict the ratcheting boundary for a pressurized pipe subjected to constant internal pressure and cyclic bending loading. Comparison of ratcheting boundary of elbow pipe determined by the proposed method, elastic-plastic finite element analysis combined with C-TDF and linear matching method, which indicates that the predicted results of the proposed method are in well agreement with those of linear matching method.

Keywords

Acknowledgement

Supported by : Natural Science Foundation of Hebei Province of China, China Postdoctoral Science Foundation, Central Universities

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