Journal of Pipeline Science and Engineering最新文献_第5页

Axisymmetric FE-based reliability analysis of corroded pipelines using advanced approaches 基于轴对称有限元的腐蚀管道可靠性分析

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-06-20 DOI: 10.1016/j.jpse.2025.100316

Rodrigo S. de Oliveira , Renato de S. Motta , Eduardo A. de Souza Neto , Silvana M.B. Afonso

{"title":"Axisymmetric FE-based reliability analysis of corroded pipelines using advanced approaches","authors":"Rodrigo S. de Oliveira , Renato de S. Motta , Eduardo A. de Souza Neto , Silvana M.B. Afonso","doi":"10.1016/j.jpse.2025.100316","DOIUrl":"10.1016/j.jpse.2025.100316","url":null,"abstract":"<div><div>A computational tool for reliability analysis of corroded pipelines is proposed, which accounts for uncertainties in inspection-collected data. The tool integrates an efficient mesh generator, an in-house finite element-based plasticity software, and 5 distinct reliability analysis options. The failure pressure results from the in-house software were first validated against a widely used commercial finite element package and experimental data. Two subsequent reliability studies then examined the sensitivity of the probability of failure to the geometry of corrosion defects. The first study compared 5 approaches using semi-empirical failure functions: traditional Monte Carlo (MC), importance sampling (IS), first-order reliability method (FORM), subset simulation (SS), and the successive Pareto simulation (SPS) proposed by the authors. SPS matched the accuracy of MC for problems with capacity and demand variables in the corroded pipeline problem, but with significantly fewer function evaluations, a reduction also achieved by IS. While FORM was more efficient than the MC-based approaches, it was the least accurate. In the second reliability analysis using a finite element-based failure function, although SPS and FORM yielded comparable results, SPS is recommended as it provides the optimal balance between accuracy and computational speed.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100316"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insight into integrity and corrosion behaviour of damaged pipe casing L80 13-3/8″ schedule 40 under marine conditions: A preliminary study L80 13-3/8″schedule 40在海洋条件下受损套管完整性和腐蚀行为的初步研究

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-09-01 DOI: 10.1016/j.jpse.2025.100347

Agus Paul Setiawan Kaban , Sidhi Aribowo , Johny Wahyuadi Soedarsono , Aris Kurniawan , Muhammad Yudi Masduky Sholihin , Rini Riasuti , Kadek Ambara Jaya , I Gusti Bagus Prihanta

{"title":"Insight into integrity and corrosion behaviour of damaged pipe casing L80 13-3/8″ schedule 40 under marine conditions: A preliminary study","authors":"Agus Paul Setiawan Kaban , Sidhi Aribowo , Johny Wahyuadi Soedarsono , Aris Kurniawan , Muhammad Yudi Masduky Sholihin , Rini Riasuti , Kadek Ambara Jaya , I Gusti Bagus Prihanta","doi":"10.1016/j.jpse.2025.100347","DOIUrl":"10.1016/j.jpse.2025.100347","url":null,"abstract":"<div><div>This study investigates the susceptibility of API 5CT L80 Type 1 to stress corrosion cracking (SCC) induced by mechanical drilling and excessive torque as a precursor in offshore environments, thereby limiting its application. The failure of casing has led to hydrocarbon leakage and damage, as micro-pits transitioned into microcracks in the horizontal direction, resulting in anodic dissolution and failure. The research encompasses a visual inspection of failed casings, which is contrasted with non-failed specimens, succeeded by microscopic examinations and material conformity tests (tensile and hardness test) to assess the crack mechanism and morphology through the utilization of scanning electron microscopy and energy dispersive X-ray (SEM-EDX) and X-ray diffraction, including high-resolution transmission electron microscopy (HR-TEM). Finite element analysis was employed to model crack growth, identify critical regions, and predict the direction of propagation. The tensile test results show a 0.57% increase in tensile strength for failed material, attributed to additional casing load absorption. The presence of martensite increased the hardness of the failed specimen to 16.7 HRC, although this value is lower than the standard 23 HRC. This observation corroborates findings from metallographic tests, which indicate issues related to corrosion and changes in microstructural integrity. Intergranular corrosion products, including oxides, sulfides, and chlorides, form due to the accumulation of cracks driven by mechanical stress at 870.05 MPa and impurity segregation. The finite element method aligns with experimental results, revealing that stress redistribution at the center of the pipe indicates localized stress concentration due to excessive torque in the <em>Y</em>-positive direction.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100347"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

USA pipeline girth weld failures: an alternative metallurgical analysis of the literature 美国管道环焊缝失效：文献的替代冶金分析

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-06-09 DOI: 10.1016/j.jpse.2025.100305

Frank Barbaro , Cheng Lu , Maina Portella Garcia

{"title":"USA pipeline girth weld failures: an alternative metallurgical analysis of the literature","authors":"Frank Barbaro , Cheng Lu , Maina Portella Garcia","doi":"10.1016/j.jpse.2025.100305","DOIUrl":"10.1016/j.jpse.2025.100305","url":null,"abstract":"<div><div>Following reports of pipeline girth weld failures in the USA, Australian Pipeline & Gas Association (APGA) convened a workshop to discuss the technical requirements and structural integrity of their pipeline network. The USA failures were claimed to be mostly grade X70 pipe welded with cellulosic consumables, E6010/E8010, and USA code compliant. This paper details the information compiled and presented during the APGA workshop. It is based on a detailed literature review and a careful metallurgical analysis based on published information of the USA failures, along with advanced numerical modelling in an attempt to provide some clarity as to the root cause. The literature review revealed that two waves of girth weld failures occurred in quick succession in the USA. The first wave was identified as hydrogen-assisted cold cracking (HACC) while the second exhibited a number of failures with similar characteristics. Moreover, the second wave contained 5 tie-in welds, with one identified as HACC. The metallurgical analysis and detailed modeling indicated that the combination of external loading and pre-existing weld defects exacerbated the weld strength undermatching in these failures. In addition, significant differences in weld procedure requirements between the Australian and American pipeline codes, potentially indicating insufficient controls, may have contributed to the reported girth weld failures in the USA.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100305"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Composite repair of large size diameter pipe with severe metal loss defects 具有严重金属损失缺陷的大口径管道的复合修复

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-05-10 DOI: 10.1016/j.jpse.2025.100294

Deli Yu , Yuze Lyu , Stefan Turchet , Hannah Huang , Chris Alexander , Tim Mally , Casey Whalen

{"title":"Composite repair of large size diameter pipe with severe metal loss defects","authors":"Deli Yu , Yuze Lyu , Stefan Turchet , Hannah Huang , Chris Alexander , Tim Mally , Casey Whalen","doi":"10.1016/j.jpse.2025.100294","DOIUrl":"10.1016/j.jpse.2025.100294","url":null,"abstract":"<div><div>A full-scale testing program was conducted to evaluate the use of carbon-epoxy composite repair technology to reinforce severe corrosion defects in large-diameter pipes. The technical elements associated with this program included reinforcing up to 85% deep corrosion defects in 24-inch diameter pipe samples, including integrating design equations, testing conditions, and performance subject to cyclic pressure and burst testing at elevated temperatures. The objective of the test program was to evaluate changes in the composite design thickness considering a range of severe corrosion depths based on guidance provided in ASME PCC-2, as well as the pressure capacity based on the methodology embodied in ASME B31G for the effects of layers. The testing program also evaluated the ASME PCC-2 design guidance subjected to cyclic pressure conditions at 60 °C (140 °F). The composite technology evaluated in this program has aimed to advance the effectiveness of composite repair while also addressing common severe corrosion defects to guarantee the operational life of a pipeline based on an optimized design configuration. This integration of knowledge based on results derived from this program offers substantial promise in guiding future composite repair procedures, structural reinforcement designs, and material choices, culminating in enhanced structural robustness and dependability of high-pressure transmission pipeline systems.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100294"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pipeline transportation strategy and key technological breakthroughs for high-quality development of hydrogen energy industry under the dual carbon goals 双碳目标下氢能产业高质量发展的管道输送策略及关键技术突破

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-10-25 DOI: 10.1016/j.jpse.2025.100391

Shangxin Zhao , Weibin Wang , Yuxing Li , Cuiwei Liu

{"title":"Pipeline transportation strategy and key technological breakthroughs for high-quality development of hydrogen energy industry under the dual carbon goals","authors":"Shangxin Zhao , Weibin Wang , Yuxing Li , Cuiwei Liu","doi":"10.1016/j.jpse.2025.100391","DOIUrl":"10.1016/j.jpse.2025.100391","url":null,"abstract":"<div><div>China’s hydrogen scale-up hinges on resolving midstream bottlenecks that move volumes from resource-rich northern and western basins to demand-dense coastal corridors. A structured synthesis of policy, engineering practice, and techno-economic evidence compares compressed gas, liquefied hydrogen, chemical carriers, and dedicated or repurposed pipelines under distance, throughput, and utilization constraints. Two findings dominate: persistent geographic (and water-resource) mismatch creates a durable need for bulk cross-regional logistics, and once flows are continuous and large, pipelines minimize levelized transport cost relative to trucking or liquefaction, while carrier routes remain case-dependent for maritime chains. System integrity depends on materials, sealing, metering, and leak detection, with hydrogen embrittlement setting design and operating limits. International benchmarks underscore China’s early stage of pipeline build-out relative to European backbone plans, highlighting urgency for standardization and coordinated development. A staged roadmap emerges: near term—local distribution and limited blending; medium term—interprovincial trunk lines supplied mainly by renewable hydrogen; long term—a meshed pure-hydrogen backbone coupled with power and gas networks to provide seasonal flexibility and industrial offtake at scale.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100391"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pipeline unidirectional guided wave generation based on a hybrid piezoelectric transducer ring and wave-packet modification 基于混合压电换能器环和波包修正的管道单向导波产生

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-11-29 DOI: 10.1016/j.jpse.2025.100416

Chen Zhu , Yanwei Xu , Hongfang Lu

{"title":"Pipeline unidirectional guided wave generation based on a hybrid piezoelectric transducer ring and wave-packet modification","authors":"Chen Zhu , Yanwei Xu , Hongfang Lu","doi":"10.1016/j.jpse.2025.100416","DOIUrl":"10.1016/j.jpse.2025.100416","url":null,"abstract":"<div><div>For pipeline inspection, unidirectional guided waves are required to concentrate energy in a single propagation direction while suppressing backward-traveling components. Conventional time-delay methods rely on multiple transducer rings with fixed spatial spacing, making their unidirectional performance highly frequency-dependent. This paper proposes a frequency-flexible method for generating unidirectional guided waves by combining a hybrid piezoelectric transducer ring with a wave-packet modification method (WPMM). The ring is composed of alternately arranged thickness-shear (<em>d</em><sub>15</sub>) and face-shear (<em>d</em><sub>24</sub>) lead zirconate titanate (PZT) transducers, and the WPMM adjusts the excitation phase and amplitude of the <em>d</em><sub>15</sub> and <em>d</em><sub>24</sub> PZTs separately to achieve optimal interference at arbitrary frequencies. A theoretical model is developed to describe the mechanism of unidirectional guided wave generation enabled by this approach. The proposed method is validated through finite element simulations and experimental measurements, with results compared to those obtained using the conventional time-delay method.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100416"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on cleavage fracture mechanism in the heat-affected zone of X80 GMAW automatic girth weld X80 GMAW自动环焊缝热影响区解理断裂机理研究

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-06-24 DOI: 10.1016/j.jpse.2025.100317

Shengyi Sha , Qingshan Feng , Feng Wang , Lianshuang Dai , Longyi Zhao , Zhihao Dong , Xiangyu Dong , Bin Han , Xueda Li

{"title":"Study on cleavage fracture mechanism in the heat-affected zone of X80 GMAW automatic girth weld","authors":"Shengyi Sha , Qingshan Feng , Feng Wang , Lianshuang Dai , Longyi Zhao , Zhihao Dong , Xiangyu Dong , Bin Han , Xueda Li","doi":"10.1016/j.jpse.2025.100317","DOIUrl":"10.1016/j.jpse.2025.100317","url":null,"abstract":"<div><div>Embrittlement of the heat-affected zone (HAZ) of girth weld has large effect on the service safety of high strength pipelines. In the present study, the cleavage fracture mechanism of X80 automatic gas metal arc welding (GMAW) girth weld joint was investigated. Microstructure of the HAZ, fracture morphology, cleavage fracture initiation and propagation as well as corresponding crystallographic features were characterized. The results showed that microstructure in the HAZ of X80 GMAW girth weld mainly consisted of lath-like bainite (LB), with localized coarse granular bainite (GB) and small fraction of continuously distributed martensite-austenite (M-A) constituent along prior austenite grain boundaries. Initiation of cleavage fracture was usually induced by decohesion of M-A constituent from the matrix. Cleavage cracks preferentially propagated through coarse GB in transgranular form. High angle boundaries (HABs) generally distributed along lath boundary of LB and grain boundary of GB, while density of HABs within coarse GB was low. Hence, cleavage cracks could not be retarded when they transgranularly propagated through coarse GB. Localized coarse GB and continuously distributed M-A constituent are also accounted for toughness scattering of X80 GMAW girth weld.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100317"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive review on fitness-for-service assessment of corroded pipelines - focus on model validation and industry applications 腐蚀管道适用性评估综述——以模型验证和工业应用为重点

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-09-04 DOI: 10.1016/j.jpse.2025.100362

Ifeanyi E. Kalu , Sogo M. Abolarin , Desmond E.P. Klenam , Edith Y. Ishidi , Kenneth K. Alaneme

{"title":"Comprehensive review on fitness-for-service assessment of corroded pipelines - focus on model validation and industry applications","authors":"Ifeanyi E. Kalu , Sogo M. Abolarin , Desmond E.P. Klenam , Edith Y. Ishidi , Kenneth K. Alaneme","doi":"10.1016/j.jpse.2025.100362","DOIUrl":"10.1016/j.jpse.2025.100362","url":null,"abstract":"<div><div>Corrosion poses a significant threat to global pipeline infrastructure, compromising burst capacity with severe safety, environmental, and economic impacts. These pipelines transport gases and crude oil, primarily composed of hydrocarbons, which dominate global energy consumption, accounting for about 85% of the supply. The transportation of these hydrocarbons relies heavily on extensive pipeline networks that are vulnerable to corrosion. Various fitness-for-service (FFS) models have been developed to evaluate corroded pipelines; however, their accuracy varies significantly with defect geometry, material grade, and operating conditions. This review provides a comprehensive overview of over 40 assessment codes, models, and techniques for estimating the pressure-carrying capacity and serviceability of corroded pipelines. Comparative analyses highlight the strengths, limitations, and applicability of these models across diverse scenarios, which are supported by experimental validation and field data. Practical insights from model validation and real-world applications are emphasized, focusing on the joint API_ASME FFS standard. A detailed examination of the underlying methodologies, inherent limitations, and practical relevance to industry applications is presented. Drawing on insights from over 50 years of research, this review offers evidence-based guidance for the oil and gas, petrochemical, and nuclear industries. It identifies critical knowledge gaps and prospective research directions aimed at enhancing the reliability of corrosion assessment practices.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100362"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical response of the pressure pipeline rehabilitated by polymer liner under the action of surface load 表面载荷作用下聚合物衬垫修复压力管道的力学响应

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-03-01 Epub Date: 2025-04-25 DOI: 10.1016/j.jpse.2025.100289

Kejie Zhai , Qiang Chen , Hongyuan Fang , Niannian Wang , Bin Li , Xueming Du , Penglu Cui , Kangjian Yang

{"title":"Mechanical response of the pressure pipeline rehabilitated by polymer liner under the action of surface load","authors":"Kejie Zhai , Qiang Chen , Hongyuan Fang , Niannian Wang , Bin Li , Xueming Du , Penglu Cui , Kangjian Yang","doi":"10.1016/j.jpse.2025.100289","DOIUrl":"10.1016/j.jpse.2025.100289","url":null,"abstract":"<div><div>The mechanical behavior of pressure pipelines rehabilitated with polymer liners under surface loads remains poorly understood. In this study, a three-dimensional model of a pressure pipeline repaired with a polymer liner is developed and validated against existing results. The effects of various factors—such as position, burial depth, load offset distance, host pipe (pressure pipe) diameter, surface load, host pipe thickness, liner thickness, liner elastic modulus, internal pressure, and the friction factor between the host pipe and liner—on the axial strain and displacement distribution of the pressure pipeline are analyzed. The findings reveal that the load’s influence on the pipeline is confined to within 5 meters of the load center. As the offset distance increases, the strain and vertical displacement at the pipe crown decrease, while the lateral displacement at the pipe crown initially increases before decreasing. Additionally, the lateral displacement at the pipe springline reverses direction. This study offers valuable insights for the operation and maintenance of pressure pipelines.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 2","pages":"Article 100289"},"PeriodicalIF":4.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147556432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic fragility in life cycle cost analysis for gas pipelines: design and cost optimization framework 天然气管道寿命周期成本分析中的地震易损性：设计与成本优化框架

IF 4.9

Journal of Pipeline Science and Engineering Pub Date : 2026-01-01 Epub Date: 2025-05-22 DOI: 10.1016/j.jpse.2025.100299

Saeedeh Adineh, Behrouz Behnam, Ahmad Tahershamsi, Saeideh Farahani

{"title":"Seismic fragility in life cycle cost analysis for gas pipelines: design and cost optimization framework","authors":"Saeedeh Adineh, Behrouz Behnam, Ahmad Tahershamsi, Saeideh Farahani","doi":"10.1016/j.jpse.2025.100299","DOIUrl":"10.1016/j.jpse.2025.100299","url":null,"abstract":"<div><div>This study proposes an innovative approach to optimizing the seismic design of pipeline network by incorporating life-cycle cost analysis (LCCA). The research integrates seismic design, which includes evaluating wave propagation, with a comprehensive LCCA. The LCCA includes the calculation of both initial and secondary costs. Initial costs cover pipeline construction costs, such as materials and installation. Secondary costs include expected seismic loss and maintenance. The research involves modeling the pipeline using FEM, conducting incremental dynamic analyses, extracting seismic fragility curves, calculating expected seismic annual losses, and using a Markov corrosion model to simulate corrosion growth rates and calculate expected maintenance costs. The developed method is applied to a gas pipeline network, which includes varying diameters and thicknesses. Results indicate that among different scenarios, a slight increase in pipe wall thickness leads to a noticeable reduction in the secondary costs, achieving the minimum life-cycle costs (LCC) value. Among secondary costs, expected seismic loss are significantly higher than maintenance costs. However, increasing wall thickness has a greater impact on reducing maintenance costs. Among the various scenarios, those with the greatest wall thickness exhibit the lowest expected seismic loss, with the expected maintenance costs effectively reaching zero. As the diameter-to-wall-thickness ratio decreases, secondary costs decrease, while initial costs and LCC increase. For scenarios with diameter-to-wall-thickness ratios of 95 and 119, the optimum LCC is achieved. Also, the results show that with an increase in diameter of up to 50% and the same thickness, the LCC increases up to 60.63%.</div></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"6 1","pages":"Article 100299"},"PeriodicalIF":4.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145996436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0