Valber A. Perrut

Petrobras (Brazil)

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Irving D. Hernández

Universidade Federal do Rio de Janeiro

Murilo Augusto Vaz

Universidade Federal do Rio de Janeiro

Jorge L. Martinez

Universidade Federal do Rio de Janeiro

Julio Cesar Ramalho Cyrino

Universidade Federal do Rio de Janeiro

Gustavo Gomes de Paula

Petrobras (Brazil)

Luiz Daniel Lana

Petrobras (Brazil)

Victor Daniel Zegarra Torres

Universidade Federal do Rio de Janeiro

Ilson Pasqualino

Universidade Federal do Rio de Janeiro

Rodrigo Ribeiro

Universidade Federal do Rio de Janeiro

Geovana Drumond

Universidade Federal do Rio de Janeiro

Cooperative Institutions

Pontifical Catholic University of Rio de Janeiro

Universidade Federal do Rio de Janeiro

Petrobras (Brazil)

Universidade Federal Fluminense

Federal Center for Technological Education Celso Suckow da Fonseca

Catholic University of America

Universidade de São Paulo

Universidade Federal de Santa Catarina

Centre National de la Recherche Scientifique

Federal Center for Technological Education of Minas Gerais

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

EFFECT OF MARINE ENVIRONMENT ON THE MECHANICAL PERFORMANCE OF FRP-STEEL JOINTS

Zenodo (CERN European Organization for Nuclear Research) (2023)

P.S.C. Vieira Gladstone Alves da Silva J.H.N. Bezerra Pedro Guimarães F.R.G. de

10.5281/zenodo.8199266

Cite

Citations (0)

Use of Fiber Bragg Grating Strain Gages on a Pipeline Specimen Repaired with a CFRE Composite System

Conference proceedings of the Society for Experimental Mechanics (2012)

J. L. F. Freire Valber A. Perrut Arthur M. B. Braga Ronaldo D. Vieira Alexandre S. Ribeiro

Fiber Bragg Grating

Strain gauge

Strain (injury)

10.1007/978-1-4614-4226-4_16

Cite

Citations (2)

Response of Perforated Tubular Members Repaired With CFRP to Bending Moment

Irving D. Hernández Murilo Augusto Vaz Julio Cesar Ramalho Cyrino Victor Daniel Zegarra Torres Jorge L. Martinez

Abstract In corrosive environments, like the ocean, offshore steel tubular structures operate for long periods without proper protection. Therefore, they are susceptible to perforation damage as consequence of concentrated corrosion, which compromises their structural integrity and increases the risk of progressive collapse. As an alternative to traditional hot-works, composite laminates are being considered for strengthening perforated steel tubular members. However, there is a lack of research on the structural capacity recovered for composite laminate repair for given damage dimensions and geometrical characteristics of tubular members subjected to bending loads. Studying the repair performance on structures subjected to bending loads is relevant because tubular members in offshore units constantly experience combinations of loads. Depending on the structure’s slenderness and damage extension, the bending moment may represent the dimensioning load for repair sizing. This study proposes to experimentally repair and test, under bending load, 1:3 scale samples of flare-boom offshore tubular structures with perforation damage using carbon fiber composite laminates. The responses from experiments and numerical models are compared to investigate strengthening performance and define a suitable patch size through a simplified parametric expression. The results indicate that simulated samples, whose repair was sized by the proposed expression, recovered the bending moment capacity, suggesting the feasibility of the repair and dimensioning procedure.

10.1115/omae2024-121316

Cite

Citations (0)

Oil Industry

Springer eBooks (2017)

Sílvio de Barros Luiz C. M. Meniconi Valber A. Perrut Carlos Eduardo Reuther de Siqueira

10.1007/978-3-319-42087-5_60-1

Cite

Citations (1)

EFFECT OF MARINE ENVIRONMENT ON THE MECHANICAL PERFORMANCE OF FRP-STEEL JOINTS

Zenodo (CERN European Organization for Nuclear Research) (2023)

P.S.C. Vieira Gladstone Alves da Silva J.H.N. Bezerra Pedro Guimarães F.R.G. de

10.5281/zenodo.8092092

Cite

Citations (0)

Study of the Efficiency and Reliability of Pressure Vessel Composite Repair

Geovana Drumond Rodrigo Ribeiro Ilson Pasqualino Marcelo Igor de Souza Valber A. Perrut

Abstract The degradation of equipment used in production platforms operating in a maritime environment occurs, in most cases, by corrosion defects. High to low pressure separators remain operational but suffer from a progressive reduction of wall thickness by external corrosion. Repair techniques for tubes and pressure vessels using laminate composite material are widely known and already defined by technical standards. However, there are doubts regarding the effectiveness of these repairs when performed near openings, nozzles or other stress concentrators. The objective of the present work is to verify the efficiency of the composite repair and the influence of the defect thickness. To meet these objectives, four vessels were tested until burst. The results showed that composite repair was efficient since the burst pressure of the repaired vessel was considerably higher than its limit pressure without repair.

Degradation

10.1115/omae2020-18835

Cite

Citations (1)

Composite patch repair of damaged tubular members from flare boom structures subjected to compressive loads

Composite Structures (2020)

Jorge L. Martinez Julio Cesar Ramalho Cyrino Murilo Augusto Vaz Irving D. Hernández Valber A. Perrut

Perforation

10.1016/j.compstruct.2020.113168

Cite

Citations (8)

CFRP repair effectiveness on compressed steel tubular members with circular cutout

Figshare (2023)

Jorge L. Martinez Julio Cesar Ramalho Cyrino Murilo Augusto Vaz Irving D. Hernández Victor Daniel Zegarra Torres

Abstract Welding procedures for repairing corroded tubular structures are commonly used; however, composite material repairs are becoming popular since they do not use heat sources that might cause accidents. This paper provides a detailed description of the CFRP patch repair application in steel tubular members with a circular perforation originated from a prolonged corrosion process. The results of experimental tests on mid-scale unrepaired damaged and repaired steel tubes are reported. The predictions of the maximum loads recovered from a proposed numerical model lie close to the experimental observed values, justifying its usage for analysis of repaired tubular structures with circular cutouts when subjected to axial compression. Compared to unrepaired perforated tubes, the experimental results demonstrate a substantial strength recovery for repaired tubes. The value of this research for the oil and gas industry is that it demonstrates the feasibility of this kind of repair, which means reduced risk to the production unit and a shorter repair period.

10.6084/m9.figshare.22268756

Cite

Citations (0)

CFRP repair effectiveness on compressed steel tubular members with circular cutout

Latin American Journal of Solids and Structures (2023)

Jorge L. Martinez Julio Cesar Ramalho Cyrino Murilo Augusto Vaz Irving D. Hernández Victor Daniel Zegarra Torres

Welding procedures for repairing corroded tubular structures are commonly used; however, composite material repairs are becoming popular since they do not use heat sources that might cause accidents. This paper provides a detailed description of the CFRP patch repair application in steel tubular members with a circular perforation originated from a prolonged corrosion process. The results of experimental tests on mid-scale unrepaired damaged and repaired steel tubes are reported. The predictions of the maximum loads recovered from a proposed numerical model lie close to the experimental observed values, justifying its usage for analysis of repaired tubular structures with circular cutouts when subjected to axial compression. Compared to unrepaired perforated tubes, the experimental results demonstrate a substantial strength recovery for repaired tubes. The value of this research for the oil and gas industry is that it demonstrates the feasibility of this kind of repair, which means reduced risk to the production unit and a shorter repair period.

Perforation

10.1590/1679-78257357

Cite

Citations (3)

Long-term field performance of a composite pipe repair under constant hydrostatic pressure

Engineering Failure Analysis (2021)

H.S. da Costa Mattos J.M.L. Reis Felipe do Carmo Amorim João Fellipe Souza L.D.M. Lana

Hydrostatic test

Hydrostatic pressure

Hydrostatic equilibrium

10.1016/j.engfailanal.2021.105765

Cite

Citations (15)