Journal of Pipeline Science and Engineering最新文献_第9页

Review of minimum requirements and development of guidance for weld spacing 审查焊接间距的最低要求和指导

Journal of Pipeline Science and Engineering Pub Date : 2022-09-01 DOI: 10.1016/j.jpse.2022.100073

Bill Bruce , Melissa Gould , Tran Mah-Paulson , Kalen Jensen , Patrick Bain

{"title":"Review of minimum requirements and development of guidance for weld spacing","authors":"Bill Bruce , Melissa Gould , Tran Mah-Paulson , Kalen Jensen , Patrick Bain","doi":"10.1016/j.jpse.2022.100073","DOIUrl":"10.1016/j.jpse.2022.100073","url":null,"abstract":"<div><p>Follow-on work to a recently completed joint industry project pertaining to hot tap branch connections included the development of guidance on minimum spacing between various combinations of adjacent pipeline girth and appurtenance welds. Related guidance was also developed for the maximum recommended length of a Type B repair sleeve. Several factors may contribute to minimum weld spacing requirements, including metallurgical, geometrical, residual stresses, and even aesthetics. It is not uncommon to hear concerns expressed about the metallurgical interaction of adjacent welds, in terms of overlapping heat-affected zones (HAZs). However, overlapping or interacting HAZs do not become a concern unless welds are spaced very closely, as HAZ widths for typical pipeline welds are generally less than 0.25 in. (6.4 mm). Often, minimum weld spacing requirements are based upon geometrical reasons, such as avoiding overlapping stress concentrations at the weld toes or allowing adequate access for inspection equipment following welding. Or, they may be based upon residual stresses, and the avoidance of overlapping residual stress fields and distortion, which are influenced by pipe dimensions and the welding procedure and could approach a few inches in distance. Finally, weld spacing requirements, especially for new construction applications, may simply be based upon aesthetics, where the flexibility exists to separate welds by a distance that makes sense from a visual perspective. Examples of company-imposed and code-based minimum requirements are provided that can used to perform a critical assessment of current company requirements or develop new requirements.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 3","pages":"Article 100073"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000452/pdfft?md5=85f9ec7b183fe638be0c3557bb006df3&pid=1-s2.0-S2667143322000452-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75670981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the effect of backfill on dynamic fracture propagation in steel pipelines 充填体对钢管管道动态断裂扩展影响的模拟

Journal of Pipeline Science and Engineering Pub Date : 2022-09-01 DOI: 10.1016/j.jpse.2022.100069

Chris Bassindale , Xin Wang , William R. Tyson , Su Xu

{"title":"Modeling the effect of backfill on dynamic fracture propagation in steel pipelines","authors":"Chris Bassindale , Xin Wang , William R. Tyson , Su Xu","doi":"10.1016/j.jpse.2022.100069","DOIUrl":"10.1016/j.jpse.2022.100069","url":null,"abstract":"<div><p>In this paper, dynamic ductile fracture propagation simulations were conducted to study the use of smoothed particle hydrodynamics (SPH) for modeling the effects of backfill in pipeline burst simulations. The effect of SPH parameters on fracture velocity was studied using the Battelle Two-Curve Method (BTCM) approach of decoupling mechanics and gas decompression but characterizing propagation toughness by crack tip opening angle (CTOA) rather than Charpy absorbed energy (CVN). The backfilled pipe model was developed and studied using the commercial finite element code ABAQUS 2017. Ductile fracture propagation was simulated using a shell based constant CTOA model. The current study examined the numerical aspects of applying SPH through comparing results with literature. The effects of particle size, various backfill material properties, and backfill depth on the fracture velocity were examined. It was found that the particle size had a minor effect on the fracture velocity and should be selected in proportion to the diameter of the pipe being examined. The numerical study showed that increasing the density and shear modulus of the backfill material resulted in a reduction of the fracture velocity. The effect of backfill depth up to 1.4 m was also examined numerically and found to have little effect on the fracture velocity, agreeing well with literature. The present study illustrates the sensitivity of the fracture velocity to the various parameters used in SPH models.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 3","pages":"Article 100069"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000415/pdfft?md5=98b114c9840f860bc9ef0fa1526c4154&pid=1-s2.0-S2667143322000415-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72840503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of line pipe and hot induction bends in hydrogen gas 氢气管道及热感应弯管的应用

Journal of Pipeline Science and Engineering Pub Date : 2022-09-01 DOI: 10.1016/j.jpse.2022.100067

G. Golisch , G. Genchev , E. Wanzenberg , J. Mentz , H. Brauer , E. Muthmann , D. Ratke

{"title":"Application of line pipe and hot induction bends in hydrogen gas","authors":"G. Golisch , G. Genchev , E. Wanzenberg , J. Mentz , H. Brauer , E. Muthmann , D. Ratke","doi":"10.1016/j.jpse.2022.100067","DOIUrl":"10.1016/j.jpse.2022.100067","url":null,"abstract":"<div><p>For the upcoming hydrogen economy, transport pipelines for hydrogen gas and gas mixtures of hydrogen and natural gas are one of the important components. For the application of steel in hydrogen gas it is necessary to handle the risk of hydrogen embrittlement by adapting the right knowledge. Compared to existing hydrogen pipelines, which are safely running since decades, higher gas pressures and steel strength levels are in discussion. For a safe operation and limited resource consumption it is necessary to clarify the product requirements. The semi-finished products medium and large line pipes and bends are regarded over the production chain: pre-material, hot rolled strip, welded pipes, and induction bent pipes. The interaction of hydrogen with steel is investigated since decades. For hydrogen gas, the surface reaction with steel is considerably reduced compared to other corrosion reactions i.e. with sour gas. This results in a much lower amount of introduced hydrogen atoms within the material. Results of lab trials of different materials after storage in pressured hydrogen gas will be shown to clarify this point. Furthermore, results of tests of applicability of commonly used flow coats in hydrogen atmosphere are shown. For a possible failure scenario of a hydrogen transport line the investigations must be focused on local effects of hydrogen enrichment in conjunction with mechanical loads. There are different laboratory tests possible to evaluate these material reactions. They are shown and discussed in the view of the following aspects: product qualification, further product and specification development and suitable approval tests.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 3","pages":"Article 100067"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000397/pdfft?md5=1f1dd879f7830866863bd1bdad3f724c&pid=1-s2.0-S2667143322000397-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86413023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Assessing damaged pipelines transporting hydrogen 评估损坏的氢气输送管道

Journal of Pipeline Science and Engineering Pub Date : 2022-09-01 DOI: 10.1016/j.jpse.2022.100066

R.M. Andrews , N. Gallon , O.J.C. Huising

{"title":"Assessing damaged pipelines transporting hydrogen","authors":"R.M. Andrews , N. Gallon , O.J.C. Huising","doi":"10.1016/j.jpse.2022.100066","DOIUrl":"https://doi.org/10.1016/j.jpse.2022.100066","url":null,"abstract":"<div><p>There is worldwide interest in transporting hydrogen using both new pipelines and pipelines converted from natural gas service. Laboratory tests investigating the effect of hydrogen on the mechanical properties of pipeline steels have shown that even low partial pressures of hydrogen can substantially reduce properties such as reduction in area and fracture toughness, and increase fatigue crack growth rates. However, qualitative arguments suggest that the effects on pipelines may not be as severe as predicted from the small scale tests. If the trends seen in laboratory tests do occur in service, there are implications for the assessment of damage such as volumetric corrosion, dents and mechanical interference. Most pipeline damage assessment methods are semi-empirical and have been calibrated with data from full scale tests that did not involve hydrogen. Hence the European Pipeline Research Group (EPRG) commissioned a study to investigate damage assessment methods in the presence of hydrogen. Two example pipeline designs were considered, both were assessed assuming a modern, high performance material and an older material. From these analyses, the numerical results show that the high toughness material will tolerate damage even if the properties are degraded by hydrogen exposure. However, low toughness materials may not be able to tolerate some types of severe damage. If the predictions are realistic, operators may have to repair more damage or reduce operating pressures. Furthermore, damage involving cracking may not satisfy the ASME B31.12 requirements for preventing time dependent crack growth. Further work is required to determine if the effects predicted using small scale laboratory test data will occur in practice.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 3","pages":"Article 100066"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000385/pdfft?md5=d32b8a061e6c5ba9f86862cc1b52c7b5&pid=1-s2.0-S2667143322000385-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137374708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

A methodology for time-varying resilience quantification of an offshore natural gas pipeline 海上天然气管道时变弹性量化方法研究

Journal of Pipeline Science and Engineering Pub Date : 2022-06-01 DOI: 10.1016/j.jpse.2022.100054

Aghatise Okoro , Faisal Khan , Salim Ahmed

{"title":"A methodology for time-varying resilience quantification of an offshore natural gas pipeline","authors":"Aghatise Okoro , Faisal Khan , Salim Ahmed","doi":"10.1016/j.jpse.2022.100054","DOIUrl":"10.1016/j.jpse.2022.100054","url":null,"abstract":"<div><p>Many resilience definitions and metrics have been presented across various disciplines in recent times. However, from a design and operations perspective, a limited effort is focused on quantifying the resilience of oil and gas support structures. This study proposes a methodology for structural resilience quantification of an offshore hydrocarbon pipeline. Resilience is modelled as a function of the structure’s time-dependent reliability, adaptability, and maintainability. The proposed model is demonstrated on an internally corroded offshore natural gas pipeline segment with multiple initial defects; and considers disruptive events arising from the leak, burst, and rupture failure modes. The resilience index and sensitivity analysis are evaluated for the offshore pipeline. The pipeline sensitivity analysis indicates the apparent effect of pipe wall thickness and defect depth growth rate on resilience over its design life. The outcome of this study provides an insight into the resilience quantification of structural systems considering multiple disruptive events. The proposed model is expected to serve as an essential tool for resilience evaluation during the design and operations of oil and gas structures.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 2","pages":"Article 100054"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000269/pdfft?md5=6bc83b747e9a504d3c3637963595ad4c&pid=1-s2.0-S2667143322000269-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90388197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Identifying two-point leakages in parallel pipelines based on flow parameter analysis 基于流量参数分析的并联管道两点泄漏识别

Journal of Pipeline Science and Engineering Pub Date : 2022-06-01 DOI: 10.1016/j.jpse.2022.02.001

Hao Fu, Kegang Ling, Hui Pu

{"title":"Identifying two-point leakages in parallel pipelines based on flow parameter analysis","authors":"Hao Fu, Kegang Ling, Hui Pu","doi":"10.1016/j.jpse.2022.02.001","DOIUrl":"10.1016/j.jpse.2022.02.001","url":null,"abstract":"<div><p>Parallel pipelines are widely used to transport energy resources. Leakages usually can occur in pipelines due to aging, corrosion, metal failure, etc. When an accident happened, not only the energy company would take the financial loss, but also it would cause pollution and safety issues to the local environment. Therefore, an efficient way to identify leakages in parallel pipelines is necessary to be proposed. In this study, ANSYS was used to simulate different leak scenarios in parallel pipelines. Fluid and pipe parameters were used to simulate different leak scenarios. In each leak scenario, there were different pressure drops along the leak pipeline based on leak locations and different flow rates. After determining there is more than a leak in pipelines, the relationship among pressure drops, leak locations, and flow rates can be used to build a mathematical model for detecting leaks. During the pipeline operations, the pressure drops were affected by leak locations and flow rates. Therefore, applying flow parameters in real leak scenarios to the mathematical model that is built from the parameters in the reality will identify the leak locations. In addition, lab experiments were applied to verify the validity of the simulations. The deviations between the experiments and simulations are less than 4%. The pressure drops through the leak pipe in the experiments and simulation vary from 1,955 to 2,898 Pa and 1,992 to 2,803 Pa, respectively. This research investigated a method to identify two-point leakages in parallel pipelines based on flow parameter analysis.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 2","pages":"Article 100052"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000154/pdfft?md5=837870c50357e6d155f8c4ae0c945626&pid=1-s2.0-S2667143322000154-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87021081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Stochastic filter-based fatigue crack growth prediction for pipelines considering unknown model parameters and measurement uncertainty 考虑未知模型参数和测量不确定性的管道疲劳裂纹扩展随机滤波预测

Journal of Pipeline Science and Engineering Pub Date : 2022-06-01 DOI: 10.1016/j.jpse.2021.11.005

Durlabh Bartaula, Samer Adeeb, Yong Li

{"title":"Stochastic filter-based fatigue crack growth prediction for pipelines considering unknown model parameters and measurement uncertainty","authors":"Durlabh Bartaula, Samer Adeeb, Yong Li","doi":"10.1016/j.jpse.2021.11.005","DOIUrl":"https://doi.org/10.1016/j.jpse.2021.11.005","url":null,"abstract":"<div><p>In this study a methodology is developed and implemented in Python for fatigue crack growth prediction in pipelines, by leveraging measurement data and fatigue growth model predictions. Specifically, Particle Filter (PF) algorithm, Paris law, and the stress intensity factor (SIF) model in API 579 are integrated into a tool to use noisy crack size measurements for estimating the current crack size and fatigue model parameters, also known as joint state-parameter estimation. For illustration purpose, pseudo-data set for crack size measurements is generated considering additive Gaussian white noise of two different noise levels, aiming to mimic crack size data obtained from In-line Inspection (ILI) tools. It is found that the crack state can be reliably estimated compared to noisy measurements and initial model predictions, and the true model parameters can be updated with good accuracy. As such, the current crack size estimated and model parameters updated can be used in the fatigue growth model (i.e., Paris law) to predict the future trajectory of the fatigue crack growth. As more measurement data becomes available, the developed tool more reliably estimates the future crack growth trajectory.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 2","pages":"Article 100044"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143321000755/pdfft?md5=f4eb60506b7ae020d3ce615f3b2e6462&pid=1-s2.0-S2667143321000755-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91719402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Resilience assessment of a subsea pipeline using dynamic Bayesian network 基于动态贝叶斯网络的海底管道弹性评估

Journal of Pipeline Science and Engineering Pub Date : 2022-06-01 DOI: 10.1016/j.jpse.2022.100053

Mohammad Yazdi , Faisal Khan , Rouzbeh Abbassi , Noor Quddus

{"title":"Resilience assessment of a subsea pipeline using dynamic Bayesian network","authors":"Mohammad Yazdi , Faisal Khan , Rouzbeh Abbassi , Noor Quddus","doi":"10.1016/j.jpse.2022.100053","DOIUrl":"10.1016/j.jpse.2022.100053","url":null,"abstract":"<div><p>Microbiologically influenced corrosion (MIC) is a serious concern and plays a significant role in the marine and subsea industry’s infrastructure failure. A probabilistic methodology is introduced in the present study to assess the subsea system’s resilience under MIC. Conventionally, the risk-based models are constructed using the system’s characteristic features. This helps decision-makers understand how a system operates and how the failed system can be recovered. The subsea system needs to be designed with sufficient resilience to maintain the performance under the time-varying interdependent stochastic conditions. This paper presents the dynamic Bayesian network-based approach to model the subsea system’s resilience as a function of time. An industry-based application study of the subsea pipeline is studied to demonstrate the efficiency and effectiveness of the proposed methodology for the resilience assessment. The proposed methodology will assist decision-makers in considering the resilience in the system design and operation.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 2","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000257/pdfft?md5=324b6df7d78fa083e5ca588c85d78ccc&pid=1-s2.0-S2667143322000257-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83665342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

Uncertainties in internal pressure of oil transmission pipelines and implications for the reliability analysis 输油管内压力的不确定性及其对可靠性分析的影响

Journal of Pipeline Science and Engineering Pub Date : 2022-06-01 DOI: 10.1016/j.jpse.2022.100055

Yue Liu, Wenxing Zhou

{"title":"Uncertainties in internal pressure of oil transmission pipelines and implications for the reliability analysis","authors":"Yue Liu, Wenxing Zhou","doi":"10.1016/j.jpse.2022.100055","DOIUrl":"10.1016/j.jpse.2022.100055","url":null,"abstract":"<div><p>This study addresses a significant knowledge gap in the reliability-based fitnessfor-service assessment of pipelines, namely the statistical information of the internal operating pressure. To this end, probabilistic characteristics of the internal pressure of an in-service oil transmission pipeline are derived based on minute-by-minute pressure records collected from the discharge and suction ends of a pump station on the pipeline. The arbitrary-point-in-time discharge and suction pressures are found to follow the Johnson SB distribution; the monthly and annual maximum discharge pressures are found to be well represented by a deterministic quantity equal to 90% of the maximum operating pressure, and the monthly and annual maximum suction pressures follow the beta distributions. The autocorrelation and power spectral density functions of the discharge and suction pressures characterized as stationary stochastic processes are also derived from the pressure records. Furthermore, the statistics of the pressure ranges obtained from the rainflow counting analysis of the pressure records are obtained. Two example pipelines are used to examine the implications of the uncertainty in the internal pressure for the reliability analysis of corroding pipelines.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 2","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667143322000270/pdfft?md5=18423a08b84b5fcf5120f64b04bba449&pid=1-s2.0-S2667143322000270-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75734441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A comparative study of the effect of the soil constitutive model on the seismic response of buried concrete pipes 土本构模型对埋地混凝土管道地震反应影响的对比研究

Journal of Pipeline Science and Engineering Pub Date : 2022-03-01 DOI: 10.1016/j.jpse.2021.07.001

Saif Alzabeebee

{"title":"A comparative study of the effect of the soil constitutive model on the seismic response of buried concrete pipes","authors":"Saif Alzabeebee","doi":"10.1016/j.jpse.2021.07.001","DOIUrl":"10.1016/j.jpse.2021.07.001","url":null,"abstract":"<div><p>No attention has been given in previous studies to understand the influence of the sophistication of the soil constitutive model on the response of buried concrete pipes subjected to transverse seismic effect. This research, therefore, has been conducted to address this gap in knowledge by analyzing the behavior of a buried concrete pipe subjected to transverse seismic shake employing the linear elastic (LE) model, elasto-plastic Mohr-Coulomb (MC) model, hardening soil (Hs) model, and hardening soil model with small strain stiffness (Hs small) to provide a benchmark study that helps the designers and the researchers to select the most suitable and less computationally demanding soil constitutive model. The cases of good and poor installation conditions have been considered in the analyses. In addition, numerous earthquake records have been used to allow the consideration of wide range of earthquake intensities to aid general conclusions. It was found that all of the considered constitutive models produce the same trend of the circumferential bending moment (BM) that is developed around the pipe. In general, the maximum BM produced using the LE and MC models is significantly lower than that produced using the Hs and Hs small models with one exception for the LE model for a predominant frequency of 0.66 Hz. Furthermore, the maximum BM produced using the LE and MC models is not sensitive to the increase of the peak ground acceleration (PGA). More importantly, the Hs and Hs small models produce almost similar results with a percentage difference ranges between 1% to 9%. In addition, the Hs and Hs small models show a decrease of the maximum BM as the predominant frequency rises and an increase of the maximum BM as the PGA rises.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"2 1","pages":"Pages 87-96"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jpse.2021.07.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90153722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15