Dynamic plastic response of a submarine oil pipeline to an underwater explosion bubble is studied in this paper. A detailed fluid-structure analysis is given to find the fluid forces acting on the pipeline. Assuming the pipeline is made from rigid, perfectly plastic material, we obtain the hydroplastic equation governing the dynamic plastic deflection of such a pipeline. The equation is analytically solved. Three examples are given to discuss the features of the dynamic plastic response and the applicability range of the present analysis. The relation between the half pipe length and maximum permanent plastic deflection is also given. [S0021-8936(00)01004-7]

Issue Section:
Technical Papers
Keywords:
plastic deformation, bubbles, explosions, shock waves, stress-strain relations
Topics:
Bubbles, Deflection, Explosions, Fluids, Pipelines, Pipes, Underwater vehicles
1.
Zong
,
Z.
,
Lam
,
K. Y.
, and
Liu
,
G. R.
,
1999
, “
Probabilistic Risk Prediction of Submarine Pipelines Subjected to Underwater Shock
,”
ASME J. Offshore Mech. Arct. Eng.
,
121
, pp.
251
–
254
.
2.
Zong
,
Z.
, and
Lam
,
K. Y.
,
2000
, “
The Flexural Response of a Submarine Pipeline to an Underwater Explosion Bubble
,”
ASME J. Offshore Mech. Arct. Eng.
,
122
, pp.
194
–
199
.
3.
Prosperetti, A., 1993, “Bubble Dynamics: Some Things We Did Not Know 10 Years Ago,” Bubble Dynamics and Interface Phenomena, J. B. Blake, J. M. Boulton-Stone, and N. H. Thomas, eds., Kluwer, Dordrecht, The Netherlands, pp. 3–16.
4.
Cole, R. H., 1948, Underwater Explosion, Princeton University Press, Princeton, NJ, pp. 228–269.
5.
Duncan, J. H., and Milligan, C. D., 1993, “Numerical Simulation of the Interaction of an Explosion Bubble With a Submerged Spherical Pressure Vessel,” Bubble Dynamics and Interface Phenomena, J. B. Blake, J. M. Boulton-Stone, and N. H. Thomas, eds., Kluwer, Dordrecht, The Netherlands, pp. 437–444.
6.
Hicks, A. N., 1986, “Explosion Induced Hull Whipping,” Advances in Marine Structures, C. S. Smith and J. D. Clarke, eds., Elsevier, New York, pp. 390–410.
7.
Jones, N., 1989, Structural Impact, Cambridge University Press, Cambridge, UK, pp. 1–109.
8.
Hodge, P. G., 1959, Plastic Analysis of Structures, McGraw-Hill, New York, pp. 50–100.
9.
Vermon, T. A., 1986, “Whipping Response of Ship Hulls From Underwater Explosion Bubble Loading,” Technical Memorandum 86/225, Defense Research Establishment Atlantic, pp. 1–41.
10.
Jones
,
N.
,
1971
, “
A Theoretical Study of the Dynamic Plastic Behavior of Beams and Plates With Finite Deflections
,”
Int. J. Solids Struct.
,
7
, pp.
1007
–
1029
.
Copyright © 2000
 by ASME
You do not currently have access to this content.