Lifting Pipeline Buckling under External Pressure Base on Imperfect Reason

Abstract:

Article Preview

The deep-sea pipe is an important part of mining lifting projects in the ocean floor. The uniqueness of environment conditions and design needs to determine the unforeseeable risks and challenges during the laying of pipeline. Based on extensive studies of loads acted on the pipeline and corresponding possible limit states for each installation method, a series of investigations on load-carrying capacity and buckling response of pipes under different loading combinations and various types defects (such as uniform ovalities)were carried out. In these calculations, the collapse pressure has been associated with the pressure maximum of a uniformly deforming long pipe. In experiments in a stiff pressure lifting pipelines, collapse is always localized as shown in Figures 3 and 4.However,because pipe’s localization takes place after the pressure maximum, the collapse pressure yielded by the 2-D analysis suffices for most cases. Exceptions are pipes with local imperfections, in the form of dents. The adequacy of this important conclusion will be demonstrated in the future application, where such predictions are compared to experiments.

Info:

Periodical:

Edited by:

Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang

Pages:

789-794

DOI:

10.4028/www.scientific.net/AMR.337.789

Citation:

Z. J. Zhou et al., "Lifting Pipeline Buckling under External Pressure Base on Imperfect Reason", Advanced Materials Research, Vol. 337, pp. 789-794, 2011

Online since:

September 2011

Export:

Price:

$38.00

[1] Kyriakides,S., Dyau,J. -Y. and Corona,E. (1994). Pipe collapse Under bending Tension and External Pressure (BEPTICO). Computer Program Manual. University of Texas at Austin, Engineering Mechanics Research Laboratory Report No. 94/4.

[2] American Petrlemu Institute Recommended Practice 1111 (1999). Design, Construction, Operation and maintenance of Offshore Pipelines (limited State Design), 3rd Edn, July.

[3] Assanelli, A.P., Toscano R.G., Johnson D.H. and Dvorkin E.N. (2000). Experimental/numerical analysis of the collapse behavior of steel pipes, Eng. Comput. 17, 459-486S.

DOI: 10.1108/02644400010334856

[4] Wang, C. Y., Wang, C. M., Aung, T. M.: Buckling of a weakened column. ASCE J. Eng. Mech. 130, 1373– 1376 (2004).

DOI: 10.1061/(asce)0733-9399(2004)130:11(1373)

[5] Fryer, M, Tait,P., Kyriakides,S., Timms,C. and DeGeer,D. (2004).

[6] DeGeer,D., Timms,C. and Lobanov,V. (2005). Blue Stream collapse test program. Proc. 24th International Conference. Offshore Mechanics and Arctic Engineering, June 12-17, Halkidiki, Greece, Paper OMAE 2005- 67260.

DOI: 10.1115/omae2005-67260

[7] Kyriakides S, Netto TA. On the dynamic propagation and arrest of buckles in pipe-in-pipe systems[J]. 2004, Int J solids Structure, 2004, 41(20): 5463-5482.

DOI: 10.1016/j.ijsolstr.2004.04.035

[8] Tang DaSheng, Zou WeiSheng, Feasibility Analysis on the Equipment for Deep-sea Lifting Pipeline System [J], MINING AND METALL URGICAL ENGINEERING, 2004, 25(4): 16-19.

[9] Herynk M.D., Kyriakides,S., Onoufriou,A. and YUN,H.D. (2007). Effects of the UOE/UOC manufacturing process on pipe collapse pressure. Int's J. Mechanical Sciences, 49, 533-553.

DOI: 10.1016/j.ijmecsci.2006.10.001

In order to see related information, you need to Login.