Propagating buckles in undersea pipelines – A model problem

Autor: Mikael Andersen Langthjem, Henrik Myhre Jensen
Rok vydání: 2022
Předmět:
Zdroj: Langthjem, M A & Jensen, H M 2022, ' Propagating buckles in undersea pipelines – A model problem ', International Journal of Solids and Structures, vol. 257, 111555 . https://doi.org/10.1016/j.ijsolstr.2022.111555
ISSN: 0020-7683
Popis: Steady state propagation of a buckle on an elastic beam resting on a non-linear foundation is studied by analytical methods. Besides serving as a prototype model for propagating instabilities in solids and structures, it may be refined with parameters based on experimental input to serve as a quantitative model for pipeline collapse. An approximate analytical approach based on matched asymptotic expansions is pursued including effects of axial tension in the beam and inertia at steady state propagation of the buckle. The model is in good agreement with numerical results.
Databáze: OpenAIRE