Buckle propagation occurs when initial local pipeline deformation attains a characteristic shape that advances in the longitudinal direction, flattening the pipe, at a velocity dependent on external pressure. This paper presents an analytical formulation that can accurately compute the propagation pressure, the propagating profile of deformation, and the associated state of stress. The formulation combines the finite-element method, a plasticity theory for modeling material behavior, and a convected-coordinate system for the treatment of large deformation. Parametric studies can be conducted easily for a wide range of values of the diameter-to-thickness ratio. The technique, its implementation, and results for stainless steel pipes are presented, which are in excellent agreement with experimental data.


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  • Accession Number: 00667433
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 30 1994 12:00AM