TY - JOUR
T1 - Dynamic response of deep-water catenary risers made of functionally graded materials
AU - Albino, J. C.R.
AU - Almeida, C. A.
AU - Menezes, I. F.M.
AU - Paulino, G. H.
N1 - Funding Information:
JCRA is thankful for the financial support provided by CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico - Brazil) and the Pontifical Catholic University of Rio de Janeiro. IFMM acknowledges the support provided by CNPq, Tecgraf/PUC-Rio (Institute of Technical-Scientific Software Development), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil ( CAPES ) - Finance Code 001 . GHP acknowledges support from the Raymond Allen Jones Chair at the Georgia Institute of Technology.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/1
Y1 - 2021/1
N2 - This paper examines the structural behavior of a steel catenary riser (SCR) with a segment composed of a functionally graded material (FGM) at the touchdown zone (TDZ). A co-rotational beam formulation is employed to evaluate the influence of material gradation on the static and dynamic nonlinear behavior of the riser. A finite element model is developed to predict the riser response considering environmental and operational conditions such as self-weight, buoyancy, current, soil contact, waves, buoys, and ship motion. Moreover, a comparison of SCR configurations is made between those constructed from FGM and those constructed from standard homogeneous materials. The study indicates that an SCR configuration with an incorporated FGM segment improves the curvatures near the TDZ, where designing to mitigate fatigue damage is critical.
AB - This paper examines the structural behavior of a steel catenary riser (SCR) with a segment composed of a functionally graded material (FGM) at the touchdown zone (TDZ). A co-rotational beam formulation is employed to evaluate the influence of material gradation on the static and dynamic nonlinear behavior of the riser. A finite element model is developed to predict the riser response considering environmental and operational conditions such as self-weight, buoyancy, current, soil contact, waves, buoys, and ship motion. Moreover, a comparison of SCR configurations is made between those constructed from FGM and those constructed from standard homogeneous materials. The study indicates that an SCR configuration with an incorporated FGM segment improves the curvatures near the TDZ, where designing to mitigate fatigue damage is critical.
KW - Finite element
KW - Functionally graded material
KW - Nonlinear dynamic analysis
KW - Steel catenary riser
UR - http://www.scopus.com/inward/record.url?scp=85099810282&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85099810282&partnerID=8YFLogxK
U2 - 10.1016/j.mechrescom.2021.103660
DO - 10.1016/j.mechrescom.2021.103660
M3 - Article
AN - SCOPUS:85099810282
SN - 0093-6413
VL - 111
JO - Mechanics Research Communications
JF - Mechanics Research Communications
M1 - 103660
ER -