Linear and nonlinear dynamic analysis of submerged cables

• Grant number: 06/06277-0
• Support type: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): July 01, 2007
• Effective date (End): June 30, 2012
• Field of knowledge: Engineering - Naval and Oceanic Engineering
• Principal Investigator: Clóvis de Arruda Martins
• Grantee: Alfredo Gay Neto
• Home Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The main goal of the project is to develop a nonlinear finite element model that represents the dynamics of submerged cables, taking into account large rotations and the coupling between torsion and bending. This model must be able to represent the dynamic behavior of a cable under dynamic compression, in the post-buckling regime. It will be implemented in a computational tool which must simulate the time-domain dynamic behavior of a flexible pipe or umbilical cable under random loads.The other goal is to linearize that model, studying the linearization hypotheses and to verify the range of validity of those hypotheses and to identify under which situations the linear model is applicable. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GAY NETO, ALFREDO; MARTINS, CLOVIS A.; PIMENTA, PAULO M. Static analysis of offshore risers with a geometrically-exact 3D beam model subjected to unilateral contact. COMPUTATIONAL MECHANICS, v. 53, n. 1, p. 125-145, JAN 2014. Web of Science Citations: 20.

GAY NETO, ALFREDO; MARTINS, CLOVIS DE ARRUDA. Structural stability of flexible lines in catenary configuration under torsion. MARINE STRUCTURES, v. 34, p. 16-40, DEC 2013. Web of Science Citations: 14.

GAY NETO, ALFREDO; MARTINS, CLOVIS DE ARRUDA; PESCE, CELSO PUPO; MEIRELLES, CHRISTIANO ODIR C.; MALTA, EDUARDO RIBEIRO; BARBOSA NETO, TEOFILO FERREIRA; FERREIRA GODINHO, CARLOS ALBERTO. Prediction of Burst in Flexible Pipes. JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, v. 135, n. 1 FEB 2013. Web of Science Citations: 8.

GAY NETO, ALFREDO; MARTINS, CLOVIS DE ARRUDA. A Comparative Wet Collapse Buckling Study for the Carcass Layer of Flexible Pipes. JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, v. 134, n. 3 AUG 2012. Web of Science Citations: 27.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

NETO, Alfredo Gay. Estabilidade estrutural da configuração estática de risers em catenária.. 2012. Doctoral Thesis - Universidade de São Paulo (USP). Escola Politécnica São Paulo.