Zobrazeno 1 - 10
of 56
pro vyhledávání: '"José Renato M. de Sousa"'
Autor:
Luís V. S. Sagrilo, José Renato M. de Sousa, Edison C. P. Lima, Elisabeth C. Porto, Jane V. V. Fernandes
Publikováno v:
Journal of Applied Mathematics, Vol 2012 (2012)
The use of powerful numerical tools based on the finite-element method has been improving the prediction of the holding capacity of fixed anchors employed by the offshore oil industry. One of the main achievements of these tools is the reduction of t
Externí odkaz:
https://doaj.org/article/00833d1e28484ee5a3004c4ff8a1de81
Autor:
José Renato M. de Sousa, Fernando J. M. de Sousa, Marcos Q. de Siqueira, Luís V. S. Sagrilo, Carlos Alberto D. de Lemos
Publikováno v:
Journal of Applied Mathematics, Vol 2012 (2012)
This paper focuses on a theoretical approach to access the fatigue life of flexible pipes. This methodology employs functions that convert forces and moments obtained in time-domain global analyses into stresses in their tensile armors. The stresses
Externí odkaz:
https://doaj.org/article/a2ec1cca0c084f42b1d6f2b8b1f25dc6
Autor:
Charlton O. de Souza, José Renato M. de Sousa, Gilberto B. Ellwanger, Emilio César C. M. da Silva
Publikováno v:
Mathematical Problems in Engineering. 2022:1-23
In this work, the wellhead axial movement of a subsea well was predicted with a previously presented multi-string model modified to account for a possible buckling of the well’s surface casing. This model represented the structural casing with a no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::873e825a8baf29b4a1c274e46df007c2
https://doi.org/10.1155/2022/9591383
https://doi.org/10.1155/2022/9591383
Publikováno v:
Ocean Engineering. 270:113723
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f7795e43b88628f2f6ff821fbfae269
https://doi.org/10.1016/j.oceaneng.2023.113723
https://doi.org/10.1016/j.oceaneng.2023.113723
Autor:
Carlos E. Fonseca, Guilherme Kronemberger Lopes, Filipe A. Rezende, Fernando Jorge Mendes de Sousa, Joseir Gandra Percy, José Renato M. de Sousa
During drilling operations, the wellhead system and top hole casings shall be designed to support dynamic loads from the connected riser through the BOP stack/LMRP. As dynamic motions are associated to stress variations, fatigue becomes a major conce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a0d34f2a0d3f7576ea7da48a42cf93c
https://doi.org/10.1115/1.0001089v
https://doi.org/10.1115/1.0001089v
Numerical investigation of setup effects in the vertical holding capacity of finless torpedo anchors
Publikováno v:
Revista Internacional de Métodos Numéricos para Cálculos y Diseño en Ingeniería. 37
This article presents a numerical based study on the vertical holding capacity of a typical finless torpedo anchor embedded in a pure cohesive isotropic sol considering setup effects. A strategy based on two axisymmetric nonlinear FE models is propos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da87c9273de1b263ad9d3764578e4328
https://doi.org/10.23967/j.rimni.2021.09.002
https://doi.org/10.23967/j.rimni.2021.09.002
Autor:
Marcelo N. R. Miyazaki, Gilberto Bruno Ellwanger, José Renato M. de Sousa, Vinicius R. da Silva
Publikováno v:
Volume 4: Pipelines, Risers, and Subsea Systems.
During the end fitting (EF) assembly, the tensile armors of flexible pipes are folded and then unfolded to allow the assessment to the inner sheath and the activation of the inner sealing system. This procedure leaves residual stresses and plastic de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b46100831d4688d2698459d411f06f15
https://doi.org/10.1115/omae2020-18657
https://doi.org/10.1115/omae2020-18657
Publikováno v:
Volume 4: Pipelines, Risers, and Subsea Systems.
Periodic shutdowns, which decompress service pressure down to atmospheric pressure, are common in offshore flexible pipe systems. In high pressure and high temperature operations, the use of multi-layer barrier flexible pipes is also common. A multi-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f7ede8b21f35252ae28737edbf0d833
https://doi.org/10.1115/omae2020-18842
https://doi.org/10.1115/omae2020-18842
Autor:
Celio Albano da Costa Neto, José Renato M. de Sousa, Sylvia Teixeira, Ingrid Cristina S. Pereira, E.G. Chaves
Publikováno v:
Volume 3: Materials Technology.
Polyvinylidene fluoride (PVDF) is an engineering thermoplastic having a high degree of sensibility to crack, which affects long-term mechanical behavior. This study evaluates the crack-sensitive of PVDF for one commercial-grade through the developmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af61dddc9500cba08efb7cf7fc69e944
https://doi.org/10.1115/omae2020-18861
https://doi.org/10.1115/omae2020-18861
Publikováno v:
Ocean Engineering. 161:350-383
This work investigates the extensional-torsional response of a flexible pipe with one up to ten wires broken in its outer tensile armor. Experimental tests were conducted, and the results obtained are compared to those from a finite element (FE) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0aee2b760836f1416bf6b6a2c416024
https://doi.org/10.1016/j.oceaneng.2018.04.091
https://doi.org/10.1016/j.oceaneng.2018.04.091