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Numerical Analysis On Failure Pressure Of Pipelines With Multi Corroded Region
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Book Synopsis Numerical Analysis on Failure Pressure of Pipelines with Multi-corroded Region by : Yew Keong Ng
Download or read book Numerical Analysis on Failure Pressure of Pipelines with Multi-corroded Region written by Yew Keong Ng and published by . This book was released on 2013 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The underground gas pipeline is vulnerable which can explode any time. The percentage of the pipeline fails due to the pressure may cause fatal destruction. Hence, the predictions of pipeline burst pressure in the early stage are very important in order to provide assessment for future inspection, repair and replacement activities. This thesis is to study the effect of multiple corrosion defects on failure pressure for API X42 steel and validate the results with available design codes. The project implicates analysis by using MSC Patran 2008 r1 software as a pre-processor and MSC Marc 2008 r1 software as a solver. Half of the pipe was simulated by fully applying symmetrical condition. The pipe is modeled in 3-D with outer diameter 381 mm, wall thickness of 17.5 mm and different defect parameter. In this analysis, SMCS and von Mises stress used to predict the failure pressure. The result shows that the failure pressure increases when the distance between defect increases but decreases when the defect length increases. SMCS always shows a higher value compared to von Mises. The design codes applied only when the distance between defect is small enough that multiple defects acts as a single defect. Meanwhile, value of FEA is the highest among all the design codes.
Book Synopsis Defect Assessment for Integrity Management of Pipelines by : Y. Frank Cheng
Download or read book Defect Assessment for Integrity Management of Pipelines written by Y. Frank Cheng and published by John Wiley & Sons. This book was released on 2024-01-31 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: DEFECT ASSESSMENT FOR INTEGRITY MANAGEMENT OF PIPELINES Make energy pipelines safer by improved defect assessment for integrity management Pipelines provide an effective and efficient mode for transportation of energies, including both conventional fossil fuels and renewable energies and fuels such as hydrogen, biofuels and carbon dioxide, over wide ranges and long distances, meeting economic development and civilian needs. While the integrity and safety of in-service pipelines is paramount to pipeline operators, there are many factors which can adversely affect the pipeline integrity and potentially result in pipeline failures and, sometimes, serious consequences. Defect Assessment for Integrity Management of Pipelines provides a thorough and detailed overview of various techniques that can be used to assess corrosion defects, the most common defects on pipelines, and other mechanical defects such as dents, buckles and winkles, all of which constitute essential threats to pipeline integrity. In addition to widely used standards and codes for defect assessment, readers can obtain the latest progress in development of advanced techniques for improved accuracy in defect assessment. From early-stage Level I methods to the newest Level III method integrating with the mechano-electrochemical interaction, Defect Assessment for Integrity Management of Pipelines has everything you need to improve safety of your pipelines. Defect Assessment for Integrity Management of Pipelines readers will also find: Evolution of defect assessment techniques and limitations to be overcome with improved techniques Detailed analysis of defect assessment for determination of fitness-for-service of the pipelines, and prediction of their failure pressures Both theoretical and practical aspects of the defect assessment methods applied on pipelines Defect Assessment for Integrity Management of Pipelines is ideal for pipeline professionals, researchers and graduate students to improve personal knowledge, research expertise, and technical skills.
Book Synopsis Numerical Failure Pressure Prediction of Crack-in-corrosion Defects in Natural Gas Transmission Pipelines by : Badr Bedairi
Download or read book Numerical Failure Pressure Prediction of Crack-in-corrosion Defects in Natural Gas Transmission Pipelines written by Badr Bedairi and published by . This book was released on 2010 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this study was to use the finite element method to model crack, corrosion, and Crack-in-Corrosion defects in a pipeline.
Book Synopsis Manual for Determining the Remaining Strength of Corroded Pipelines by : American Society of Mechanical Engineers
Download or read book Manual for Determining the Remaining Strength of Corroded Pipelines written by American Society of Mechanical Engineers and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical evaluation of load capacity of corroded pipes by :
Download or read book Numerical evaluation of load capacity of corroded pipes written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Dutos são sistemas amplamente utilizados para o transporte de óleo e gás. Desta forma, é importante que o mesmo opere com eficiência e segurança. Com o passar do tempo os dutospodem sofrer danos que podem causar prejuízos à sua integridade estrutural e, consequentemente, prejuízo financeiro às indústrias que os operam. Uma das formas mais comuns de danos presentes nos dutos é a corrosão. Esta podecomprometer a sua capacidade de carga. Com isto, a determinação da resistência remanescente de dutos corroídos tornou-se objeto de estudo de vários pesquisadores em todoo mundo. Métodos empíricos utilizados para esta determinação foram desenvolvidos e estão disponíveis na literatura, e muitos deles são aplicáveis apenas em dutos submetidos à pressão interna. Entretanto estes métodos se mostram, em geral, bastante conservadores nesta determinação. Assim, métodos alternativos têm sido desenvolvidos baseados no método dos elementos finitos. Este trabalho tem como objetivo avaliar a capacidade de carga de dutos corroídos submetidos a carregamentos combinados que tentam simular os que ocorrem no campo. Estescarregamentos são: pressão interna, momento fletor e cargas axiais. Carregamentos axiais são provenientes da variação de temperatura e do efeito Poisson existente nas extremidades dos dutos devido à pressão interna. Neste trabalho realizou-se a modelagem de dutos submetidos à carregamentos combinados, onde se tentou reproduzir ao máximo as condições de ensaio. Tomou-se como base ensaiosexperimentais e numéricos encontrados na literatura. Aspectos globais sobre a modelagem são detalhados. A modelagem dos exemplos aqui apresentados foi desenvolvida no programa comercial ABAQUS Versão 6.1.
Book Synopsis Handbook of Materials Failure Analysis with Case Studies from the Oil and Gas Industry by : Abdel Salam Hamdy Makhlouf
Download or read book Handbook of Materials Failure Analysis with Case Studies from the Oil and Gas Industry written by Abdel Salam Hamdy Makhlouf and published by Butterworth-Heinemann. This book was released on 2015-09-01 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Materials Failure Analysis: With Case Studies from the Oil and Gas Industry provides an updated understanding on why materials fail in specific situations, a vital element in developing and engineering new alternatives. This handbook covers analysis of materials failure in the oil and gas industry, where a single failed pipe can result in devastating consequences for people, wildlife, the environment, and the economy of a region. The book combines introductory sections on failure analysis with numerous real world case studies of pipelines and other types of materials failure in the oil and gas industry, including joint failure, leakage in crude oil storage tanks, failure of glass fibre reinforced epoxy pipes, and failure of stainless steel components in offshore platforms, amongst others. Introduces readers to modern analytical techniques in materials failure analysis Combines foundational knowledge with current research on the latest developments and innovations in the field Includes numerous compelling case studies of materials failure in oil and gas pipelines and drilling platforms
Book Synopsis Safety, Reliability and Risks Associated with Water, Oil and Gas Pipelines by : Guy Pluvinage
Download or read book Safety, Reliability and Risks Associated with Water, Oil and Gas Pipelines written by Guy Pluvinage and published by Springer Science & Business Media. This book was released on 2007-10-25 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Springer has here produced a major debut in English-language publications. It’s the first book to describe very recent methods for pipe defect assessment such as notch fracture mechanics and critical gross strain. Pipelines remain the least expensive transcontinental mean of transport compared to the rail-bound or terrestrial transport. It has become increasingly paramount to ensure the safe utilization of such plant in order to prevent economical, social and ecological losses. This book adds much to the body of knowledge in this area.
Book Synopsis Reliability and Maintainability of In-Service Pipelines by : Mojtaba Mahmoodian
Download or read book Reliability and Maintainability of In-Service Pipelines written by Mojtaba Mahmoodian and published by Gulf Professional Publishing. This book was released on 2018-06-13 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliability and Maintainability of In-Service Pipelines helps engineers understand the best structural analysis methods and more accurately predict the life of their pipeline assets. Expanded to cover real case studies from oil and gas, sewer and water pipes, this reference also explains inline inspection and how the practice influences reliability analysis, along with various reliability models beyond the well-known Monte Carlo method. Encompassing both numerical and analytical methods in structural reliability analysis, this book gives engineers a stronger point of reference covering both pipeline maintenance and monitoring techniques in a single resource. Provides tactics on cost-effective pipeline integrity management decisions and strategy for a variety of different pipes Presents readers with rational tools for strengthening and rehabing existing pipelines Teaches how to optimize materials selection and design parameters for designing future pipelines with a longer service life
Book Synopsis Underground Pipeline Corrosion by : Mark Orazem
Download or read book Underground Pipeline Corrosion written by Mark Orazem and published by Elsevier. This book was released on 2014-02-17 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underground pipelines transporting liquid petroleum products and natural gas are critical components of civil infrastructure, making corrosion prevention an essential part of asset-protection strategy. Underground Pipeline Corrosion provides a basic understanding of the problems associated with corrosion detection and mitigation, and of the state of the art in corrosion prevention. The topics covered in part one include: basic principles for corrosion in underground pipelines, AC-induced corrosion of underground pipelines, significance of corrosion in onshore oil and gas pipelines, numerical simulations for cathodic protection of pipelines, and use of corrosion inhibitors in managing corrosion in underground pipelines. The methods described in part two for detecting corrosion in underground pipelines include: magnetic flux leakage, close interval potential surveys (CIS/CIPS), Pearson surveys, in-line inspection, and use of both electrochemical and optical probes. While the emphasis is on pipelines transporting fossil fuels, the concepts apply as well to metallic pipes for delivery of water and other liquids. Underground Pipeline Corrosion is a comprehensive resource for corrosion, materials, chemical, petroleum, and civil engineers constructing or managing both onshore and offshore pipeline assets; professionals in steel and coating companies; and academic researchers and professors with an interest in corrosion and pipeline engineering. Reviews the causes and considers the detection and prevention of corrosion to underground pipes Addresses a lack of current, readily available information on the subject Case studies demonstrate how corrosion is managed in the underground pipeline industry
Book Synopsis Failure Pressure of Internally Corroded Line Pipe Using Finite Element Method by : Nordin Yahaya
Download or read book Failure Pressure of Internally Corroded Line Pipe Using Finite Element Method written by Nordin Yahaya and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Risk and Reliability Analysis: Theory and Applications by : Paolo Gardoni
Download or read book Risk and Reliability Analysis: Theory and Applications written by Paolo Gardoni and published by Springer. This book was released on 2017-02-24 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unique collection of contributions from some of the foremost scholars in the field of risk and reliability analysis. Combining the most advanced analysis techniques with practical applications, it is one of the most comprehensive and up-to-date books available on risk-based engineering. All the fundamental concepts needed to conduct risk and reliability assessments are covered in detail, providing readers with a sound understanding of the field and making the book a powerful tool for students and researchers alike. This book was prepared in honor of Professor Armen Der Kiureghian, one of the fathers of modern risk and reliability analysis.
Book Synopsis Failure Pressure Prediction of Pipelines Steel in the Presence of Corrosion Defects and Pre-strain by : Prakash Raj Subramaniam
Download or read book Failure Pressure Prediction of Pipelines Steel in the Presence of Corrosion Defects and Pre-strain written by Prakash Raj Subramaniam and published by . This book was released on 2013 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This projects explains the methods used in predicting the failure pressure of defective pipelines. The failure pressure of defective was estimated for the pipe with the different types of defects. APIX42 steel is chosen for this studies and it must undergoes few machining steps to design a tensile test specimen according to ASTM E8-08M-11. Data obtained from tension test (engineering stress strain) must convert into true stress strain in order to transfer it during simulation (field). Power law is the formula used to convert engineering stress strain to true stress strain. Ultimate strength of APIX42 is predicted at 612 MPa. For modelling part, one quarter of pipeline geometry need to design in MSCPatran software. This study is only focussed on single type of defect. Meshing (element) steps continues after one quarter of geometry is designed. Modelling and simulation is repeated for the different depth (25%, 50% and 75%) of defects and increment in pre-strain. Result obtained after the simulation process must be interpolated to get more accurate failure pressure. Predicted failure pressure is higher for pipeline without presence of pre-strain. Pipeline with the presence of pre-strain, predicted failure pressure is reducing as the amount of pre-strain applied is increases. Three industry models are compared with the finite element result (FEA) for validation. For the lower depth, FEA failure prediction is the highest followed by DNV-RP-F101. ASME B31G and Modified B31G predicted almost same failure pressure but less than FEA and DNV-RPF101. When the depth increases, DVN-RP-F101 predicted higher value of burst pressure compared to FEA. Whereas Modified B31G and ASME B31G predicted lower failure pressure but getting closer to FEA and DVN-RP-F101. The same phenomena happened when various amount of pre-strain (1kN, 3kN and 5kN) applied, but predicted failure pressure is lower than without pre-strain. By referring to the result, presence of pre-strain is really effected value of failure pressure. Increase in pre-strain will cause losing balance strength in pipelines and leads failure in short time compare to pipelines without pre-strain.
Book Synopsis The Effect of Corrosion Defects on Burst Pressure of Pipelines by : Khairul Anwar Ibrahim
Download or read book The Effect of Corrosion Defects on Burst Pressure of Pipelines written by Khairul Anwar Ibrahim and published by . This book was released on 2012 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: The predictions of pipeline burst pressure in the early stage are very importance in order to provide assessment for future inspection, repair and replacement activities. The failure of oil and gas pipelines contribute to economic implications and also constitute a serious hazards to the environment due to leakage. This thesis deals with the study on the effect of corrosion defect on the burst pressure of pipelines for API 5L X42 steel. The objectives for this project are to determine the burst pressure of corroded pipelines using Finite Element Analysis (FEA) and to compare the results with the available pipelines design code. This project implicates analysis of the API X42 steel by using MSC Patran 2008 r1 software as pre-processor and MSC Marc 2008 r1 software as a solver. A quarter of pipe was simulated by fully applying the symmetrical condition. The pipe is modeled in 3-D with outer diameter of 60 mm, wall thickness of 6 mm and different defect parameters. In this analysis, stress modified critical strain used as failure criterion to predict the failure of defective pipe. Result shows that the burst pressure decreases when both defect depth and length increases. The defect depth appear as a most influence parameter that affect the burst pressure. The circumferential extent has a less influence on the burst pressure. The results have been compared to available design codes for corroded pipelines such as ASME B31G, Modified ASME B31G and DNV RP F101. Comparison with available design codes have shown that FEA burst pressure gives higher values compare to codes. From the results, ASME B31G gives the lowest values than other codes.
Book Synopsis Piping and Pipeline Calculations Manual by : Philip Ellenberger
Download or read book Piping and Pipeline Calculations Manual written by Philip Ellenberger and published by Elsevier. This book was released on 2014-01-22 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piping and Pipeline Calculations Manual, Second Edition provides engineers and designers with a quick reference guide to calculations, codes, and standards applicable to piping systems. The book considers in one handy reference the multitude of pipes, flanges, supports, gaskets, bolts, valves, strainers, flexibles, and expansion joints that make up these often complex systems. It uses hundreds of calculations and examples based on the author's 40 years of experiences as both an engineer and instructor. Each example demonstrates how the code and standard has been correctly and incorrectly applied. Aside from advising on the intent of codes and standards, the book provides advice on compliance. Readers will come away with a clear understanding of how piping systems fail and what the code requires the designer, manufacturer, fabricator, supplier, erector, examiner, inspector, and owner to do to prevent such failures. The book enhances participants' understanding and application of the spirit of the code or standard and form a plan for compliance. The book covers American Water Works Association standards where they are applicable. Updates to major codes and standards such as ASME B31.1 and B31.12 New methods for calculating stress intensification factor (SIF) and seismic activities Risk-based analysis based on API 579, and B31-G Covers the Pipeline Safety Act and the creation of PhMSA
Download or read book Petroleum Abstracts written by and published by . This book was released on 1997 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remaining Strength Assessment of Deteriorating Energy Pipelines by : Bipul Chandra Mondal
Download or read book Remaining Strength Assessment of Deteriorating Energy Pipelines written by Bipul Chandra Mondal and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pipelines are extensively used as the most economic means of transporting oil and gas. The steel pipelines have been widely used for these applications due to the high strength to weight ratio of the material, resulting in lower material cost. These pipelines are subjected to corrosions during the service life, resulting in the reduction of wall thicknesses. The prediction of the remaining strength of a corroded pipeline is required for fitness-for-purpose assessment. For the prediction of the remaining strength, different models were developed based on simplified results of analysis and/or empirical fits to limited experimental data which are expressed in terms of burst pressure. The established design codes adopt simplified design equations for the burst pressure prediction for corroded pipelines. However, the burst pressures predicted using the simplified equations are not consistent with the burst test results and results obtained from rigorous finite element (FE) analyses. Besides, the pipelines are often subjected to axial force and bending moment. The effects of the axial force and bending moment on the burst pressure are not rationally accounted. In this research, the axial forces and bending moments experience by energy pipelines are first examined considering a case of offshore pipelines. The improved burst pressure models are then developed for pipelines with and without the axial forces and bending moments. The existing models of burst pressures for deteriorated-steel pipelines are investigated to determine the contributing parameters to the burst pressures. The Folias factor and flow stress are identified as the major parameters contributing to the burst pressures of the corroded pipelines. A detailed study, based on FE analysis using Abaqus, has been carried out to develop a new method of defining the Folias factor and to develop an improved model for burst pressure prediction for a corroded pipeline. The finite element analysis is then extended to develop the new interaction rules for the pipelines subjected to multiple patches of the corrosion defects. The FE analysis is used to develop failure loci for burst pressure prediction for pipelines subjected to axial forces and bending moments. Corroded pipelines often suffer from the stress corrosion cracking (SCC) when the pipelines in corrosive environments are subjected to high tensile stresses. The SCC occurs at a stress intensity factor well below the fracture toughness of the material. The effects of the SCC and the crack propagation in the deteriorating pipelines cannot be captured using standard FE modeling techniques. It is proposed to employ fracture mechanics to determine the remaining strengths of pipelines containing corrosion defects or crack-like defects or corrosion with crack-like defects.
Book Synopsis Numerical Study on the Pipe Containing Multiple Aligned Axial Cracks by : Mohamad Zikril Hakim Md Saleh
Download or read book Numerical Study on the Pipe Containing Multiple Aligned Axial Cracks written by Mohamad Zikril Hakim Md Saleh and published by . This book was released on 2013 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Failures due to the multiple cracks become a major concern in the pipeline industry and also in maintaining the pipeline integrity. The predictions of pipeline burst pressure in the early stage are very important in order to provide assessment for future inspection. The effects of the multiple aligned axial cracks on burst pressure of material Grade B was studied through an experimental and numerical simulation. The objectives of this research are to investigate the effects of multiple aligned axial cracks towards the burst pressure. This research focuses on two types of analysis which is experimental and simulations by using material Grade B pipe with outer diameter of 60.5mm, 600mm in length and thickness of 4mm. The burst test is done by applying internal pressure of hydraulic oil continuously at the pipe with artificially machined cracks until the pipe burst. MSC Marc Patran 2008r1 is used as a pre-processor and a solver in the analysis of material Grade B. A half of the pipe was modeled by considering the symmetrical conditions using the same parameter with a pipe that used in the burst test. In both analyses of experiment and simulation, the stress and strain are used as criteria for predicting the failure of the pipe. The result shows that as the length of the cracks increase, the burst pressure is decreased. The assessment method in predicting the burst pressure such as ASME B31G, Modified ASME B31G and DNV-RP-F-101 used as the comparison with the result taken from the analysis.
