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Steel and Composite Structures Volume 32, Number 3, August10 2019 , pages 312-323 DOI: https://doi.org/10.12989/scs.2019.32.3.312 |
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Ratcheting boundary of pressurized pipe under reversed bending |
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Xiaohui Chen, Xu Chen and Zifeng Li
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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. | ||
Key Words | ||
pressurized pipe; finite element analysis; constitutive model; ratcheting boundary; elastic modulus adjustment procedure | ||
Address | ||
(1) Xiaohui Chen: School of Control Engineering, Northeastern University, Qinhuangdao, 066004, China; (2) Xiaohui Chen, Zifeng Li: School of Mechanical Engineering & Automation, Yanshan University, Qinhuangdao, 066004, China; (3) Xu Chen: School of Mechanical Engineering & Automation, School of Tianjin University, Tianjin, 300072, China. | ||