Journal of Pressure Vessel Technology-Transactions of the Asme最新文献_第2页

Fatigue Crack Growth Evaluation Of Pipeline Steels And Girth Welds 管道钢和环焊缝疲劳裂纹扩展评价

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-30 DOI: 10.1115/1.4063293

D. Park, Jie Liang

引用次数: 0

Investigation On Gas-Liquid Two-Phase Flow-Induced Vibrations Of A Horizontal Elastic Pipe 水平弹性管道气液两相流诱发振动的研究

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-24 DOI: 10.1115/1.4063241

H. Su, Y. Qu, Z. Peng

{"title":"Investigation On Gas-Liquid Two-Phase Flow-Induced Vibrations Of A Horizontal Elastic Pipe","authors":"H. Su, Y. Qu, Z. Peng","doi":"10.1115/1.4063241","DOIUrl":"https://doi.org/10.1115/1.4063241","url":null,"abstract":"\u0000 This paper is concerned with experimental analyses on the vibration behaviors of a horizontal pipe containing gas-liquid two-phase flow with different flow patterns. The effects of flow patterns and superficial velocities on pressure fluctuations and structural responses are evaluated in detail. Numerical simulations on the fluid-structure interactions within the pipe are carried out using the volume of fluid method and the finite element method. A strongly partitioned coupling method is adopted to ensure the compatibility and equilibrium interface conditions between the fluid and the elastic pipe. The accuracy of the numerical solutions is confirmed by comparing with experimental results. It is found that the fluctuation frequency of the pressure fluctuations of the two-phase flow ranges from 0Hz to 5Hz. The standard deviation value of the pressure fluctuation of the two-phase flow increases with an increase in the superficial liquid velocity, and the maximum magnitude appears in slug flows. The vibration responses of the pipe exhibit strong dependence on the momentum flux of the two-phase flow, which mainly excites the fundamental flexural vibration mode of the pipe. The magnitude of vertical vibration response of the pipe is equal to that of the lateral vibration response, and the vibration response measured at the middle of the pipe does not contain the second-order operating mode. Moreover, the STD value of the structural responses of the pipe increases proportionally with an increase in the gas flow rate, while the predominant vibration frequency of the pipe slightly increases.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46146264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial Neural Network Technique For Seismic Fragility Analysis Of A Storage Tank Supported By Multi-Storey Frame 多层框架储罐地震易损性分析的人工神经网络技术

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-24 DOI: 10.1115/1.4063242

G. Quinci, F. Paolacci, H. Phan

{"title":"Artificial Neural Network Technique For Seismic Fragility Analysis Of A Storage Tank Supported By Multi-Storey Frame","authors":"G. Quinci, F. Paolacci, H. Phan","doi":"10.1115/1.4063242","DOIUrl":"https://doi.org/10.1115/1.4063242","url":null,"abstract":"Fragility function, which defines the conditional probability of exceeding a limit state given an intensity measure (IM) of the earthquake, is an essential ingredient of modern approaches like the performance-based earthquake engineering methodology. However, the generation of such curves generally entails a high computational effort to account for epistemic and aleatory uncertainties associated with structural analysis and seismic load. Moreover, a certain probability function, such as the log-normal distribution, is usually assumed in order to carry out the conditional probability of failure of a structure, without any prior information on the correct probability distribution. In this paper, an artificial neural network (ANN) model is proposed to carry out fragility curves in order to avoid the aforementioned problems. In this respect, this paper investigates the following aspects: (i) implementation of an efficient algorithm to select proper seismic intensity measures as inputs for ANN, (ii) derivation of surrogate models by using the ANN techniques, (iii) computation of fragility curves by means Monte Carlo Simulations and (iv) validation phase.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41818525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigate On Failure Mechanism of Basalt Filament Wound Composite Pipe Under External Loads 玄武岩纤维缠绕复合管在外载荷作用下的失效机理研究

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-11 DOI: 10.1115/1.4063166

Jie Zhang, Rui Yang, Haoming Sun, D. Xiang

{"title":"Investigate On Failure Mechanism of Basalt Filament Wound Composite Pipe Under External Loads","authors":"Jie Zhang, Rui Yang, Haoming Sun, D. Xiang","doi":"10.1115/1.4063166","DOIUrl":"https://doi.org/10.1115/1.4063166","url":null,"abstract":"\u0000 Non metallic composite pipes are one of the most effective ways to transport hydrogen. Basalt fiber materials can be used on hydrogen pipes, simulation models of composite pipe under plate and spherical indenter loads were established to study the effects of structure parameters on the pipe's mechanical behavior and failure modes. The results show that the matrix is the weakest part of the composite pipe under spherical indenter load, the failure areas of each fiber layer change for winding angle. The ultimate load decreases with the increasing of diameter-thickness ratio, and that increases with a deviation of the fiber winding angle from the axial direction, the indent depth increases with the increasing of diameter-thickness ratio. Under plate load, the final deformation of composite pipe is affected by the fiber winding angle and diameter-thickness ratio. The weak part of composite pipe changes due to the fiber winding angle, but the failure areas start from the plastic line area. The ultimate load and total absorbed energy of composite pipes under plate load is proportional to the winding angle and inversely proportional to the diameter-thickness ratio.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44184790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Fatigue Life Evaluation With Experimental Results for Type III Accumulators ⅲ型蓄能器疲劳寿命数值评价与试验结果

4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-10 DOI: 10.1115/1.4063042

Sang-Won Kim, Nobuhiro Yoshikawa

引用次数: 0

Influence Of External Magnetic Field On Mechanical And Metallurgical Properties Of Pressure Vessel Steel (Sa 516 Grade 70) Welds Using Gas Tungsten Arc Welding 外磁场对压力容器钢（Sa 516 70级）钨极气体保护焊焊缝力学性能和冶金性能的影响

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-03 DOI: 10.1115/1.4063096

Paramjeet Shakya, Kulwant Singh, H. Arya

{"title":"Influence Of External Magnetic Field On Mechanical And Metallurgical Properties Of Pressure Vessel Steel (Sa 516 Grade 70) Welds Using Gas Tungsten Arc Welding","authors":"Paramjeet Shakya, Kulwant Singh, H. Arya","doi":"10.1115/1.4063096","DOIUrl":"https://doi.org/10.1115/1.4063096","url":null,"abstract":"\u0000 The mechanical and metallurgical properties of weld play the most important role in the performance of welds which needs to be enhanced. The superimposing external magnetic field to the welding arc provided wonderful and favourable results for improving the shape and properties of weld. In this research, different configurations of specially designed electromagnets were used to investigate their effects on weld characteristics of SA 516 grade 70 welds. It is observed that 0-0-S-N configuration yielded maximum penetration (3.92 mm) compared with other configurations as well as the conventional gas tungsten arc welding (GTAW) process. Tensile test, Charpy impact test and microhardness were performed to investigate the mechanical properties and microstructure analysis was used to determine the metallurgical properties of the weld joints. The result shows that the tensile strength, impact strength, and microhardness of magnetically controlled GTAW (MCGTAW) weld was 620MPa, 275J and 198HV respectively which is 3.16%, 22.76%, and 1.51% higher than weld produced by GTAW process. It has also been observed that electromagnetic stirring refined the microstructure of the weld pool. The average grain size of MCGTAW weld was 31.035µm whereas 42.558µm average grain was obtained in conventional GTAW weld. The electromagnetic stirring enhanced the weld cooling rate resulting formation of more acicular ferrite which is desirable.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45763467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermally-Assisted Rotational Autofrettage of Long Cylinders with Free Ends 自由端长圆柱体的热辅助旋转自增强

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-08-03 DOI: 10.1115/1.4063095

Rajkumar Shufen, Ngangkham Peter Singh, U. S. Dixit

{"title":"Thermally-Assisted Rotational Autofrettage of Long Cylinders with Free Ends","authors":"Rajkumar Shufen, Ngangkham Peter Singh, U. S. Dixit","doi":"10.1115/1.4063095","DOIUrl":"https://doi.org/10.1115/1.4063095","url":null,"abstract":"\u0000 Autofrettage is a widely employed process for strengthening cylindrical or spherical pressure vessels. The process involves applying a uniform load to the inner wall of a vessel to cause a controlled plastic deformation, where the vessel yields starting from the inner wall up to an intermediate radius. When the load is removed, elastic recovery takes place and compressive residual stresses are induced in the vicinity of the inner wall, which strengthen the vessel against high static and pulsating loads during service. Based on the load employed, autofrettage can be of five types- hydraulic, swage, explosive, thermal and rotational. This work analyzes a rotational autofrettage augmented by a thermal load where the load is applied by rotating the cylinder about its axis while maintaining a temperature gradient across the wall. The combined centrifugal and thermally-induced stresses cause plastic deformation in the cylinder. When the cylinder is unloaded by bringing it to rest and cooling down to room temperature, compressive hoop residual stresses are introduced in the vicinity of the inner wall. A finite element method model of the proposed thermally-assisted rotational autofrettage is developed for a cylinder made of AH36 mild steel in a commercial package ABAQUS®. The results indicate that the thermal load reduces the rotational speed required for autofrettage, when compared to a conventional pure rotational autofrettage. The thermal load also mitigates the tensile axial residual stresses, which are typical in a purely rotational autofrettage. A conceptual design of the experimental set up is also presented.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43932086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research On Effect Factors Of Mechanical Response Of Pe Gas Pipeline In Karst Area Based On Element Birth And Death Technique 基于单元生灭技术的岩溶地区Pe-天然气管道力学响应影响因素研究

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-07-20 DOI: 10.1115/1.4062972

Q. Li, Junhua Chen

引用次数: 0

Microstructure Analysis And Fe Modelling For Creep Failure Prediction And Fitness-For-Service Assessment Of Superheater Tubes 过热器管蠕变失效预测及适用性评估的微观结构分析与铁模型

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-07-20 DOI: 10.1115/1.4062974

S. Zangeneh, H. Lashgari, R. Moazed

{"title":"Microstructure Analysis And Fe Modelling For Creep Failure Prediction And Fitness-For-Service Assessment Of Superheater Tubes","authors":"S. Zangeneh, H. Lashgari, R. Moazed","doi":"10.1115/1.4062974","DOIUrl":"https://doi.org/10.1115/1.4062974","url":null,"abstract":"\u0000 This study aimed to perform a Fitness-For-Service (FFS) Assessment and investigate the root cause of failure of Grade 14CrMo3 steel seamless tubes typically used in superheaters in power generation plants. Thickness and hardness measurements were taken from the samples, and microstructural analyses were performed using scanning electron microscopy and X-ray diffraction. The results showed the presence of vanadium (V) and sulfur (S) elements on the tubes' external surface (fireside) which is indicative of fuel ash corrosion. The formation of low melting point salts such as Na2SO4, NaVO3, Na2O, and V2O5 and degradation of the protective oxide layer led to loss of tube wall thickness. On the steam side of the tubes, the formation of an iron oxide layer and the presence of water in the steam due to the improper function of the steam drum created an insulated zone leading to the formation of localized hot spots, creep microvoids, and spheroidization of carbides. In addition, a thickness reduction of 18% resulted in a considerable increase in hoop stresses having a detrimental effect on the remaining creep life. To explain the creep damage mechanism and determine the remaining creep life, the Larson-Miller criteria and API 579-1/ASME FFS-1 guidelines were utilized. The effects of the reduction in wall thickness were considered by performing a 3D finite element analysis. The results showed that a temperature increase of only 50C could decrease the life of the tubes from 30 years to less than a year.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46608008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creep-Fatigue Life Property Of P91 Welded Piping Subjected To Bending And Torsional Moments At High Temperature P91焊接管道在高温弯矩和扭矩作用下的蠕变疲劳寿命特性

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2023-07-20 DOI: 10.1115/1.4062973

Kazuma Okuno, M. Arai, Kiyohiro Ito, Hidetaka Nishida

引用次数: 0