Search Results - "Afonso, Silvana M. B."

An efficient procedure for structural reliability-based robust design optimization by Motta, Renato de S., Afonso, Silvana M. B.

“…This paper focuses on the development of an optimization tool with the aim to obtain robust and reliable designs in short computational time. The robustness…”
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A modified NBI and NC method for the solution of N-multiobjective optimization problems by de S. Motta, Renato, Afonso, Silvana M. B., Lyra, Paulo R. M.

“…Multiobjective optimization (MO) techniques allow a designer to model a specific problem considering a more realistic behavior, which commonly involves the…”
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Failure pressure prediction of corroded pipes under combined internal pressure and axial compressive force by Bruère, Vivianne Marie, Bouchonneau, Nadège, Motta, Renato S., Afonso, Silvana M. B., Willmersdorf, Ramiro B., Lyra, Paulo R. M., Torres, Juliana V. S., de Andrade, Edmundo Q., Cunha, Divino J. S.

“…In this work, failure prediction of corroded pipelines under combined loads of internal pressure and axial compressive force is investigated through the Finite…”
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Assessment by finite element modeling of pipelines with corrosion defects based on River-Bottom Profile model by Cabral, Rodolfo M.S., Ferreira, Adriano D.M., Pimentel, Júlio T., da Silva Cabral, Marco A.F., Lyra, Paulo R.M., Afonso, Silvana M.B., Willmersdorf, Ramiro B.

“…This paper presents a new methodology for the prediction of pipelines failure pressure that uses axisymmetric modeling of pipelines which uses the River Bottom…”
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Reliability analysis of ovalized deep-water pipelines with corrosion defects by Motta, Renato de S., Leal, Caroline F., Ferreira, Adriano D., Afonso, Silvana M.B., Lyra, Paulo R.M., Willmersdorf, Ramiro B.

“…The accurate assessment of the remaining strength of corroded pipes is a subject that has been increasingly investigated over the past decades. This is because…”
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Stochastic assessment of burst pressure for corroded pipelines by Marques Ferreira, Adriano Dayvson, de Siqueira Motta, Renato, Afonso, Silvana M. B., Willmersdorf, Ramiro B., Lyra, Paulo R. M., de Andrade, Edmundo Q., Cunha, Divino J. S.

“…Pipeline wall loss is a major concern of the oil and gas industry. The computational simulation through the finite element method is one of the most efficient…”
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The development of a computational tool for generation of high quality FE models of pipelines with corrosion defects by Cabral, Hélder L. D., Motta, Renato S., Afonso, Silvana M. B., Willmersdorf, Ramiro B., Lyra, Paulo R. M., de Andrade, Edmundo Q.

“…Corrosion is one of the most common causes of accidents involving pipelines. Unfortunately, the semi-empirical methods currently available are overly…”
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Dynamic design optimization of an equivalent truncated mooring system by Ferreira, Fábio M.G., Lages, Eduardo N., Afonso, Silvana M.B., Lyra, Paulo R.M.

“…An important part in the development and hydrodynamic verification of new floating production systems involves carrying out testing on ocean basin…”
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Global/local optimization strategies combined for waterflooding problems by de Oliveira, Leonardo Correia, Afonso, Silvana M. B., Horowitz, Bernardo

“…In oil Reservoir Engineering application, a problem of great interest is the dynamic optimization of waterflooding management. In this work, the net present…”
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Corroded pipeline assessment using neural networks, the Finite Element Method and discrete wavelet transforms by Ferreira, Adriano Dayvson Marques, Willmersdorf, Ramiro B., Afonso, Silvana M.B.

“…An essential task in the oil and gas industry is establishing an efficient way to assess corroded pipeline integrity. The literature shows that integrity…”
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Multiresolution analysis and deep learning for corroded pipeline failure assessment by Ferreira, Adriano Dayvson Marques, Afonso, Silvana M.B., Willmersdorf, Ramiro B., Lyra, Paulo R.M.

“…•A parametrization of real corrosion shapes using discrete wavelet transform was proposed.•Synthetic models were created to reproduce real complex corrosion…”
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Probabilistic assessment of complex corrosion in pipelines considering River-Bottom Profile information by de Siqueira Motta, Renato, Marques Ferreira, Adriano Dayvson, Afonso, Silvana M.B.

“…One of the important causes of failure and incidents in pipelines is corrosion. Due to the severe consequences and impact in several social, economic, and…”
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Controlled time series forecasting for oil reservoir management by de Souza, Alexandre, Tueros, Juan A. R., Machado, Mateus G., Santos, Rafael F. V. C., Willmersdorf, Ramiro B., Afonso, Silvana M. B., Oliveira, Leonardo C., Horowitz, Bernardo

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Comparative studies for failure pressure prediction of corroded pipelines by Motta, Renato S., Cabral, Hélder L.D., Afonso, Silvana M.B., Willmersdorf, Ramiro B., Bouchonneau, Nadège, Lyra, Paulo R.M., de Andrade, Edmundo Q.

“…The Finite Element (FE) Method is one of the most efficient approaches to quantify reliably the remaining strength of corroded pipes, by allowing the direct…”
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Structural integrity analysis of pipelines with interacting corrosion defects by multiphysics modeling by Soares, Elder, Bruère, Vivianne Marie, Afonso, Silvana M.B., Willmersdorf, Ramiro B., Lyra, Paulo R.M., Bouchonneau, Nadège

“…To assess the structural integrity of pipelines with corrosion defects for transportation of petroleum, several methods can be applied. The Semi-Empirical…”
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Automatic history matching considering surrogate-based optimization and Karhunen–Loève expansions by de Lira, José Dásio, Willmersdorf, Ramiro B., Afonso, Silvana M. B., Horowitz, Bernardo

“…In oil reservoir engineering one stage of great interest is the production history matching process, in which the numerical model is adjusted to reproduce the…”
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