Numerical Study on Structural Performance of 3-Ply Bellows Expansion Joint consigering Structural Uncertainty

doi:10.15683/kosdi.2024.12.31.991

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2024 Vol.20, Issue 4 Preview Page Next Page

Original Article

Numerical Study on Structural Performance of 3-Ply Bellows Expansion Joint consigering Structural Uncertainty 구조적 불확실성을 고려한 3중 적층 벨로우즈 신축이음관의 구조성능에 관한 해석적 연구: 손호영¹ㆍ전법규²ㆍ주부석³*
Ho-Young Son¹, Bub-Gyu Jeon², Bu-Seog Ju³*; ¹Research Doctor, Department of Civil Engineering, Kyung Hee University, Yongin, Republic of Korea
²Senior Researcher, Seismic Research and Test Center, Pusan National University, Yangsan, Republic of Korea
³Professor, Department of Civil Engineering, Kyung Hee University, Yongin, Republic of Korea

31 December 2024. pp. 991-997

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Abstract

Purpose: This study aims to analyse the effect of wall thinning on the structural performance of bellows expansion joints under monotonic bending loads based on a finite element model. Method: Monotonic bending loading experiments of 3-ply bellows expansion joints were performed on 200A pipe to develop the finite element model, and the finite element model was validated based on the experimental results. FE analysis was performed by increasing the wall-thinning rate by 10% from a minimum of 10% to a maximum of 50% based on previous studies, and the load-displacement relationship with wall-thinning rate was compared. Result: The overall trends were similar in the experimental test and the FE analysis, and the maximum force were in good agreement by a difference of about 6%. In addition, the location of damage in the experimental test and the location of the plastic strain concentration in the FE analysis were the same. The maximum force decreased by about 5% to 6% for every 10% decrease in wall thinning. Conclusion: Since the load-displacement relationship was in good agreement and the location of the concentrated plastic strain was consistent, the finite element model developed in this study is suitable for simulating the bending load behaviour of the 200A 3ply bellows expansion joint. In addition, wall-thinning under the bending load affects the structural performance. Future research will analyse the effect of wall-thinning on the structural behaviour of bellows expansion joints under cyclic loading.

Keywords

3-Ply Bellows Expansion Joint

200A Piping System

Monotonic Bending Loading

Ground Subsidence

Large Relative Displacement

연구목적: 본 연구는 회선의 벽두께 감소가 단조 휨 하중 하에서 벨로우즈 신축이음관의 구조적 성능에 미치는 영향을 유한요소 모델 기반의 해석적 연구를 통해 분석하고자 한다. 연구방법: 해석적 연구를 위해 200A 배관을 대상으로 3중 적층 벨로우즈 신축이음관의 단조 휨 하중 실험을 수행하고 실험 결과를 기반으로 유한요소 모델을 구축 및 검증하였다. 연구결과: 실험 및 해석결과를 비교하였을 때 전체적인 경향성은 유사하였으며 최대 하중은 약 6%차이로 잘 일치하였다. 또한 실험에서 손상이 발생한 위치와 유한요소 해석에서 소성변형률이 집중된 위치는 동일하였다. 벽두께 감소율이 10%씩 감소할 때 최대 하중은 약 5%~6%씩 감소하는 것으로 나타났다. 결론: 하중-변위 관계는 잘 일치하였으며 소성 변형이 집중되는 위치는 동일하였으므로 본 연구에서 구축된 유한요소 모델은 200A 3중 적층 벨로우즈 신축이음관의 단조 휨 하중 거동을 모사하기에 적합하다. 또한 단조 휨 하중하에서 벽두께 감소는 구조적 성능에 영향을 미치는 것으로 나타났다. 추후연구는 반복하중 하에서 벽두께 감소가 벨로우즈 신축이음관의 구조적 거동에 미치는 영향을 분석하고자 한다.

키워드

3중 적층 벨로우즈 신축이음관

200A 배관 시스템

단조 휨 하중

지반침하

큰 상대변위

References

Donald, B. (2013). Understanding the Seismic Vulneravility of Water System. https://docplayer.net/7985651-ofWaterUnderstanding-the-seismic-vulnerability-of-water-systems.html
Dassault Systems (2021). ABAQUS Analysis User's Guide, Ver. 2021. France.
Dassault Systems (2021). ABAQUS Ver. 2021. France.
Jeon, B.-G., Kim, S.-W., Yun, D.-W., Ju, B.-S., Son, H.-Y. (2022). "An experimental study on seismic performance evaluation of multi-ply bellows type expansion joint for piping system." Sustainability, Vol. 14, No. 22, 14777.10.3390/su142214777
Liu, J., Liu, Y., Li, L., Liu, J. (2021). "Numerical investigation of the effect of material properties on forming metal bellows." The International Journal of Advanced Manufacturing Technology, Vol. 116, pp. 2425-2436.10.1007/s00170-021-07551-z
Liu, J., Lv, Z., Liu, Y., Li, L. (2020). "Deformationa behaviors of four-layered U-shaped metallic bellows in hydroforming." Chinese Journal of Aeronautics, Vol. 33, No. 12, pp. 3479-3494.10.1016/j.cja.2020.02.007
Lv, Y., Liang, L.R., Li, Y.W., Chen, Y. (2021). "Experimental and finite element study of buried pipes connected by bellow joint under azial cyclic loading." Journal of Pipeline Systems Engineering and Practice, Vol. 12, No. 1, pp. 1-12.10.1061/(ASCE)PS.1949-1204.0000524
Ministry of the Interioi and Safety (2018). The White Paper of Pohang Earthquake. Central Disaster and Safety Countermeasures Headquarters, Sejong.
Son, H.Y., Jeon, B.G., Yu, J.S., Ju, B.S. (2023). "Surrogate model-based global sensitivity analysis of multi-ply bellows expansion joint subjected to structural uncertainty under monotonic loading." Journal of the Korean Society for Advanced Composite Structures, Vol. 14, No. 6, pp. 63-70.10.11004/kosacs.2023.14.6.063
Zhao, Y., Sheng, F., Yang, B. (2023). "Failure analysis of a bellows expansion joint in flue gas pipeline of catalytic cracking unit." Engineering Failure Analysis, Vol. 153, 107622.10.1016/j.engfailanal.2023.107622

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 20
No :4
Pages :991-997
DOI :https://doi.org/10.15683/kosdi.2024.12.31.991

[1] Donald, B. (2013). Understanding the Seismic Vulneravility of Water System. https://docplayer.net/7985651-ofWaterUnderstanding-the-seismic-vulnerability-of-water-systems.html

[2] Dassault Systems (2021). ABAQUS Analysis User's Guide, Ver. 2021. France.

[3] Dassault Systems (2021). ABAQUS Ver. 2021. France.

[4] Jeon, B.-G., Kim, S.-W., Yun, D.-W., Ju, B.-S., Son, H.-Y. (2022). "An experimental study on seismic performance evaluation of multi-ply bellows type expansion joint for piping system." Sustainability, Vol. 14, No. 22, 14777.10.3390/su142214777

[5] Liu, J., Liu, Y., Li, L., Liu, J. (2021). "Numerical investigation of the effect of material properties on forming metal bellows." The International Journal of Advanced Manufacturing Technology, Vol. 116, pp. 2425-2436.10.1007/s00170-021-07551-z

[6] Liu, J., Lv, Z., Liu, Y., Li, L. (2020). "Deformationa behaviors of four-layered U-shaped metallic bellows in hydroforming." Chinese Journal of Aeronautics, Vol. 33, No. 12, pp. 3479-3494.10.1016/j.cja.2020.02.007

[7] Lv, Y., Liang, L.R., Li, Y.W., Chen, Y. (2021). "Experimental and finite element study of buried pipes connected by bellow joint under azial cyclic loading." Journal of Pipeline Systems Engineering and Practice, Vol. 12, No. 1, pp. 1-12.10.1061/(ASCE)PS.1949-1204.0000524

[8] Ministry of the Interioi and Safety (2018). The White Paper of Pohang Earthquake. Central Disaster and Safety Countermeasures Headquarters, Sejong.

[9] Son, H.Y., Jeon, B.G., Yu, J.S., Ju, B.S. (2023). "Surrogate model-based global sensitivity analysis of multi-ply bellows expansion joint subjected to structural uncertainty under monotonic loading." Journal of the Korean Society for Advanced Composite Structures, Vol. 14, No. 6, pp. 63-70.10.11004/kosacs.2023.14.6.063

[10] Zhao, Y., Sheng, F., Yang, B. (2023). "Failure analysis of a bellows expansion joint in flue gas pipeline of catalytic cracking unit." Engineering Failure Analysis, Vol. 153, 107622.10.1016/j.engfailanal.2023.107622

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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