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On the propagating buckle and its arrest


Kyriakides, Stelios (1980) On the propagating buckle and its arrest. Dissertation (Ph.D.), California Institute of Technology.


If an offshore pipeline locally buckles in the presence of sufficiently large external pressure, a propagating buckle is initiated. The buckle propagates along the pipeline until it encounters a region of adverse conditions -- low pressure or an arresting device. The lowest pressure at which a buckle propagates is defined as the Propagation Pressure. An experimental study of this quantity is presented and a semiempirical expression derived by examining various models of the phenomenon. The dynamics of the Propagating Buckle are also examined and a parametric study of the steady state velocity of Propagation is carried out. A systematic way of empirically deriving the parametric dependence of arresting devices is presented and experimental results of two such arrestors are discussed. During this study a unique "flip-flop" mode of propagation was discovered and studied. An explanation of the phenomenon is also attempted.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Restricted to Caltech community only
Research Advisor(s):
  • Babcock, Charles D.
Thesis Committee:
  • Unknown, Unknown
Defense Date:14 April 1980
Funding AgencyGrant Number
US. Dept. of EnergyUNSPECIFIED
American Petroleum InstituteUNSPECIFIED
Record Number:CaltechETD:etd-10292003-134840
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4300
Deposited By: Imported from ETD-db
Deposited On:30 Oct 2003
Last Modified:26 Dec 2012 03:07

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