Finite Element Analysis of Stress for Nozzle Zone at Channel of Pressure Vessel

Abstract:

With the development of petrochemical industry, the status of pressure vessel has become increasingly important, and higher requirements are introduced for the security of nozzle zone at the pressure bearing region of pressure vessel. In order to study the stress status of nozzle zone at the channel of pressure vessel, solid modeling for channel and straight pipe was performed with ANSYS software. Through finite element analysis and calculation, the stress concentration region of channel was determined and the reason was analyzed. In addition, the nozzle zones of the model before and after loading were compared. The result reveals that symmetrical stress concentration region lies at the junction of channel and pipe. The maximum stress is located at the inside of nozzle zone of channel and less than the yield stress of material.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 2165-2168
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.2165
• Online since: March 2012
• Authors: Xiao Lv, Shi Jie Wang
• Keywords: Channel, Finite Element Analysis (FEA), Nozzle Zone, Pressure Vessel Steel, Stress Concentration

References

[1] V.N. Skopinsky, A.B. Smetankin: Int. J. of Applied Mechanics and Engineering. Vol. 11(2006), pp.965-979.

[2] Zhimin Lu, Qiang Li, Yunye Xie: Journal of Beijing Jiaotong University. Vol. 4(2008), pp.36-38, in Chinese.

[3] Jianguo Li: Mechanical Foundation of Design for Pressure Vessel and Standard Application (China Machine Press, Beijing 2004), in Chinese.

[4] Jinyang Zheng, Qiwu Dong, Zhifu Sang: Design for Process Equipment (Chemical Industry Press, Beijing 2001), in Chinese.

[5] Weihui Yu, Bingjun Gao: Application of ANSYS in Mechanical and Chemical Equipment (China WaterPower Press, Beijing 2006), in Chinese.

[6] Z. Pammer: Special Issue on the Industrial Use of Finite-element Analysis Vol. 5(1993), pp.208-215.