Research of Reinforce Stress on the Pressure Structure of Submersible Vehicle

Abstract:

In order to improve the load-carrying properties of pressure structure, a new method to improve the external bearing limit is put forward and residual stress is used. Based on finite element analysis, finite element models of cylinder pressure structure of submersible vehicle are established to produce hoop residual stress in the process of outward expansion. According to a lot of data of simulation experiments, the result indicates that hoop residual stress is compressive on the outer surface of the pipe and the hoop stress keeps tensile on the inside surface. This kind of stress distribution is helpful to the cylinder structure and can improve its bearing capacity of external pressure. Moreover, the rules of the residual stress are got. The influences of physical dimension, yield strength of material and the expansion rate to the stress distribution are analyzed. The measures to produce the stress distribution are also presented.

• Periodical: Applied Mechanics and Materials (Volumes 496-500)
• Pages: 590-593
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.496-500.590
• Online since: January 2014
• Authors: Guan Nan Chu, Qing Yong Zhang*, Guo Chun Lu
• Keywords: Deep-Sea Submersible, Mechanical Capacity, Pressure Structure, Reinforce Stress, Residual Stress

References

[1] Ming Tang, Youhai Jin, Guijie Yu et. al: Journal of China University of Petroleum Vol. 6(2008), pp.125-128, in Chinese.

[2] Lianjin Li: Research on Iron and Steel Vol. 33(2005), pp.23-26, in Chinese.

[3] Ming Tang, Lulu Wang, Jian Zhong et. al: Journal of Xi'an Jiaotong University Vol. 44(2010), pp.90-94, in Chinese.

[4] Junwei Gao, Guangwei Xie, Houjun Zhou et. al: Mechanical Research & Application Vol. 21(2008), pp.21-23, in Chinese.

[5] Jiachun Wang: Pressure Vessel Technology Vol. 19(2002), pp.1-3, in Chines.

[6] Ya Wang, Ruilin Zhu: Chemical Equipment Technology Vol. 27(2006), pp.29-34, in Chinese.