In order to study the compressive behavior of flexible pipes, a nonlinear finite element model was developed. This fully tridimensional model recreates a five-layer flexible pipe with two tensile armor layers, an external polymeric sheath, an orthotropic high strength tape, and a rigid inner nucleus. The friction coefficient is known as a key parameter in determining the instability response of flexible pipes’ tensile armor. Since the featured model includes all nonlinear frictional contacts between the layers, it has been used to conduct several experiments in order to investigate its influence on the response. This article includes a description of the finite element model itself and a case study where the friction between the layers of the pipe is changed. The procedure of this analysis is described here, along with the results.
Finite Element Analysis of Flexible Pipes Under Compression: Influence of the Friction Coefficient
Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the Journal of Offshore Mechanics and Arctic Engineering. Manuscript received September 28, 2017; final manuscript received January 21, 2019; published online March 25, 2019. Assoc. Editor: Hagbart S. Alsos.
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Malta, E. R., and Martins, C. D. A. (March 25, 2019). "Finite Element Analysis of Flexible Pipes Under Compression: Influence of the Friction Coefficient." ASME. J. Offshore Mech. Arct. Eng. December 2019; 141(6): 061601. https://doi.org/10.1115/1.4042941
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