Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Marcos A. D. Martins"'
Autor:
Marcos A. D. Martins, Aldemir Cavalini Júnior, Hélio Ribeiro Neto, Ludimar L. Aguiar, Marcelo Maia Ribeiro Damasceno, Tatiane Bento da Costa
Publikováno v:
Volume 8: CFD and FSI.
Fluid-structure interaction modeling tools based on computational fluid dynamics (CFD) produce interesting results that can be used in the design of submerged structures. However, the computational cost of simulations associated with the design of su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1ed770fa157e200a04b1b1f6a1b9e9
https://doi.org/10.1115/omae2020-18915
https://doi.org/10.1115/omae2020-18915
Autor:
Luis Manoel Paiva Nunes, Marcelo dos Santos, Ludimar L. Aguiar, Marcos A. D. Martins, Stael Ferreira Senra, Alexandre G. Garmbis, Eduardo Hippert
Publikováno v:
Volume 5B: Pipelines, Risers, and Subsea Systems.
One of the main challenges in rigid riser design for Brazilian Pre-salt is the fatigue limit state. At this new production frontier, some key points are imposed as a challenge for riser designers, mainly due to the high level of motions imposed by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f43140023640ad6c12cf891b033c2b78
https://doi.org/10.1115/omae2019-96592
https://doi.org/10.1115/omae2019-96592
Publikováno v:
International Journal for Numerical Methods in Engineering. 72:1095-1110
A distance field is a representation of the closest distance from a point to a given surface. Distance fields are widely used in applications ranging from computer vision, physics and computer graphics and have been the subject of research of many au
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f00df4117a618c3fd8700d2623e1fd0d
https://doi.org/10.1002/nme.2079
https://doi.org/10.1002/nme.2079
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 195:3145-3167
In this work we evaluate the performance of inexact Newton-type schemes to solve the nonlinear equations arising from the SUPG/PSPG finite element formulation of steady viscoplastic incompressible fluid flows. The flow through an abrupt contraction a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9fcf181b51ca0b49adccb431741e82
https://doi.org/10.1016/j.cma.2004.08.015
https://doi.org/10.1016/j.cma.2004.08.015
Publikováno v:
International Journal for Numerical Methods in Engineering. 66:431-460
SUMMARY Several performance improvements for finite-element edge-based sparse matrix–vector multiplication algorithms on unstructured grids are presented and tested. Edge data structures for tetrahedral meshes and triangular interface elements are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0139bfd703f02821c54fe538d5080e1
https://doi.org/10.1002/nme.1557
https://doi.org/10.1002/nme.1557
Autor:
Marcos A. D. Martins, José L. D. Alves, Luiz Landau, Alvaro L. G. A. Coutinho, Rubens M. Sydenstricker
Publikováno v:
Finite Elements in Analysis and Design. 42:171-188
A new a posteriori error estimate for finite element stress analysis is proposed. This engineering approach is characterized by using local reference systems that allows establishing which stress components must be continuous and which may not be con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6496740f244bf148280d6bd1cbb90418
https://doi.org/10.1016/j.finel.2005.06.007
https://doi.org/10.1016/j.finel.2005.06.007
Publikováno v:
Computational Mechanics. 38:365-381
A parallel edge-based solution of three dimensional viscoplastic flows governed by the steady Navier–Stokes equations is presented. The governing partial differential equations are discretized using the SUPG/PSPG stabilized finite element method on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c741c176dff01f8b44efa1ec985b01a7
https://doi.org/10.1007/s00466-005-0012-y
https://doi.org/10.1007/s00466-005-0012-y
Autor:
Alvaro L. G. A. Coutinho, Rubens M. Sydenstricker, José L. D. Alves, Luiz Landau, Marcos A. D. Martins
Publikováno v:
Computers and Geotechnics. 30:347-374
Interface finite elements have been used in many geotechnical and engineering applications. Essentially, these elements must allow relative displacements between two bodies in contact, or separated by a thin material layer. Frequently, interface elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbb9e68b3c776d1bc051e20ee6a800a6
https://doi.org/10.1016/s0266-352x(03)00013-2
https://doi.org/10.1016/s0266-352x(03)00013-2
Autor:
Marcos A. D. Martins, José L. D. Alves, Daniel Fonseca de Carvalho e Silva, Marcos D. Ferreira, Renato N. Elias, Nestor O. Guevara, Alvaro L. G. A. Coutinho, Carlos Silva, Fernando A. Rochinha
Publikováno v:
Volume 4: Offshore Geotechnics; Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics.
This work presents the development of EdgeCFD-ALE, a finite element system for complex fluid-structure interactions designed for offshore hydrodynamics. Sloshing of liquids in tanks, wave breaking in ships, offshore platforms motions and green water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbb8bfcf49e20eed1181f0cc3db2b3eb
https://doi.org/10.1115/omae2012-83176
https://doi.org/10.1115/omae2012-83176
Autor:
Renato N. Elias, Marcos D. Ferreira, Marcos A. D. Martins, Alvaro L. G. A. Coutinho, Milton A. Gonc¸alves, Paulo T. T. Esperanc¸a
Publikováno v:
29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6.
Flows involving waves and free-surfaces occur in several problems in hydrodynamics, such as sloshing in tanks, waves breaking in ship and motions of offshore platforms. The computation of such wave problems is challenging since the water/air interfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa672df5f85bb03e993f3050162964a1
https://doi.org/10.1115/omae2010-21138
https://doi.org/10.1115/omae2010-21138