The authors have proposed an analytical model by which they can simulate the experimental results of a piping system with full circumferential 48% thinning at an elbow or two elbows. A series of elasto-plastic analyses has been carried out in order to investigate the experimental behavior of the piping system. Dynamic analyses describe the ratcheting behavior and the average amplitude of the opening-closing displacement at elbows relatively well. And then static analyses describe ratcheting and ovaling of the cross section of pipes fairy well.
- Pressure Vessels and Piping Division
Study on Estimation Method for Seismic Safety Margin of 3D Piping System With Degradation: Establishing Elasto-Plastic Analysis Model
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Mikami, A, Udagawa, M, & Takada, H. "Study on Estimation Method for Seismic Safety Margin of 3D Piping System With Degradation: Establishing Elasto-Plastic Analysis Model." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. High Pressure Technology: Innovations and Advances in High Pressure Technology; 12th Annual ASME/PVPD 2004 Student Paper Competition. San Diego, California, USA. July 25–29, 2004. pp. 125-134. ASME. https://doi.org/10.1115/PVP2004-2287
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