Journal of Pressure Vessel Technology-Transactions of the Asme最新文献_第10页

Analysis of Stresses and Strains in Stainless Steel 316L Tubes Subjected to Die Expansion 不锈钢316L管在模具膨胀过程中的应力和应变分析

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-16 DOI: 10.1115/1.4053877

Zijian Zhao, A. Bouzid, N. Laghzale

{"title":"Analysis of Stresses and Strains in Stainless Steel 316L Tubes Subjected to Die Expansion","authors":"Zijian Zhao, A. Bouzid, N. Laghzale","doi":"10.1115/1.4053877","DOIUrl":"https://doi.org/10.1115/1.4053877","url":null,"abstract":"\u0000 SS316L finned tubes are becoming very popular in high-pressure gas exchangers and particularly in CO2 cooler applications. Due to the high-pressure requirement during operation, these tubes require an accurate residual stress evaluation during the die expansion process. . Die expansion of gas coolers finned tubes creates not only high stresses that can surpass the UTS when combined with operation stresses but also micro-cracks during expansion when the process is not very well controlled.\u0000 This research work aims to study the elastics-plastic behavior and estimate the residual stress state of tubes subjected to the die expansion process. The stresses and deformations of the expanded SS316L tube are analyzed numerically using the finite element method. The expansion and contraction process is modeled considering elastic-plastic material behavior for different die sizes. The maximum longitudinal, tangential, and contact stresses are evaluated to verify the critical stress state of the joint during the expansion process. The importance of the material behavior in evaluating the residual stresses using kinematic and isotropic hardening is addressed. Finally, an experiment was conducted to assess the tangential and longitudinal strains of a 3/8 stainless steel subjected to expansion with an oval shape die.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48141831","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

Weldability and the Effect on Haz Microstructure of a High Hardenability Boron Steel Compared to SAE 1045 after Shielded Metal Arc Welding (SMAW) 高淬透性硼钢与sae1045焊后可焊性及对Haz组织的影响

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-16 DOI: 10.1115/1.4053878

José Gustavo Oliveira, A. Alves, Jaime Casanova, Jeferson José de Carvalho, S. Brandi

{"title":"Weldability and the Effect on Haz Microstructure of a High Hardenability Boron Steel Compared to SAE 1045 after Shielded Metal Arc Welding (SMAW)","authors":"José Gustavo Oliveira, A. Alves, Jaime Casanova, Jeferson José de Carvalho, S. Brandi","doi":"10.1115/1.4053878","DOIUrl":"https://doi.org/10.1115/1.4053878","url":null,"abstract":"\u0000 One of the steels commonly used in the industry in mechanical devices, tools and structural steels is SAE 1045. A possible replacement for this alloy is SAE 15B30 with similar mechanical properties. To select an alloy, care is needed, for example weldability. Making a comparative study of these alloys, can boron steel replace SAE 1045? Knowing that boron steels have high hardenability but may have an improved weldability due to the low carbon equivalent. Therefore, it is extremely important to know the factors that can interfere with the quality of the final product after the welding processes, as the mechanical properties and microstructures in the heat-affected zone (HAZ) may change. The present work intends to compare the weldability of SAE 15B30 and SAE 1045 welded by shielded metal arc welding (SMAW) and also to analyze the microstructural changes after welding by optical microscopy, scanning electron microscopy and its relationship with hardness using the test of Vickers microhardness. To perform the welds, both in SAE 1045 steel and in SAE 15B30 steel, the butt joint with a V-shaped chamfer was chosen. The results showed that the boron steel, with high hardenability, obtained a microstructure with bainite in the zone. affected by coarse grain heat (CGHAZ), unlike SAE 1045, which presented pearlitic microstructure. In addition, the hardness of boron steel increased by approximately 90% over the base metal and the hardness of SAE 1045 resulted in an increase close to 50% over the base metal.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44695089","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

Static Analysis and Health Monitoring of Pipelines in NPPs with Noise Consideration 考虑噪声的核电站管道静力分析与健康监测

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-16 DOI: 10.1115/1.4053882

Dhrubajyoti Datta

{"title":"Static Analysis and Health Monitoring of Pipelines in NPPs with Noise Consideration","authors":"Dhrubajyoti Datta","doi":"10.1115/1.4053882","DOIUrl":"https://doi.org/10.1115/1.4053882","url":null,"abstract":"\u0000 The study proposes a numerical methodology for assessment of physical parameters which are critical to damage detection and structural health monitoring of pipelines propagating fluids under high temperatures. The thermal gradient of the fluid, self-weight of the piping system, and the pressure exerted on the pipe walls are taken into consideration for static analysis. The displacement, stresses and strains are computed for the imposed loads. The boundary conditions for a pipeline element is assigned through translational and rotational springs whose stiffnesses are unknown. The expression for the boundary stiffnesses are derived by coupling the internal pressure due to fluid flow with thermal loading and weight. The dependent and independent parameters for deciphering the degradation of the pipe element are identified to minimize instrumentation for health monitoring. The primary aspects of damage being investigated are wall thinning due to corrosion resulting in stiffness degradation. In practical scenarios, it has been observed that excessive instrumentation of a structural component for health monitoring, might result in measurement noise. Hence, artificial noise is introduced to the measurement stresses and strains in a Gaussian distribution form, which is corrected through a numerical algorithm.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42710500","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

Study of Residual Stress Evolution in SUS304/Q235 Bimetallic Clad Plate Butt-Welded Joints Considering Welding Sequence 考虑焊接顺序的SUS304/Q235双金属复合板对接接头残余应力演化研究

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-16 DOI: 10.1115/1.4053879

Min Zhu, Yansong Zhang, Qiao Zheng, Wei Wu, Weifang Qian, Baosen Wang

引用次数: 0

The Use of an Equivalent Temperature Field to Emulate an Induced Residual Stress Field in a Rotating Disk Due to Full Or Partial Rotational Autofrettage 利用等效温度场模拟旋转圆盘中由于完全或部分旋转自强化而产生的感应残余应力场

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-16 DOI: 10.1115/1.4053880

M. Perl, S. M. Kamal, Solomon Mulera

{"title":"The Use of an Equivalent Temperature Field to Emulate an Induced Residual Stress Field in a Rotating Disk Due to Full Or Partial Rotational Autofrettage","authors":"M. Perl, S. M. Kamal, Solomon Mulera","doi":"10.1115/1.4053880","DOIUrl":"https://doi.org/10.1115/1.4053880","url":null,"abstract":"\u0000 The evaluation of equivalent temperature fields for cylindrical and spherical pressure vessels to imitate autofrettage induced residual stresses has been successfully implemented in studying crack growth in autofrettaged vessels by the finite element method. Rotational autofrettage is a recent method that can be employed for strengthening hollow disks used in many turbomachinery. The evaluation of the equivalent temperature field becomes pivotal in the performance assessment of autofrettaged cracked disks subjected to high rotational speed. In this work, an equivalent thermal loading method for emulating the residual stress field in a hollow rotating disk, induced by full or partial rotational autofrettage in a finite element analysis is suggested. An analytical, or a numerical discrete solution, evaluating the equivalent temperature field for an arbitrary axisymmetric residual stress field, induced in a rotating disk due to rotational autofrettage, is developed. This solution is implemented in a finite element analysis to emulate the original rotational autofrettage induced residual stresses in a typical rotating disk. Applying the equivalent temperature field, the residual stresses obtained in the finite element analysis, are further corroborated with the original residual stress field introduced by rotational autofrettage. It is found that the developed equivalent temperature fields excellently reproduce the residual stress fields, within less than 1%, induced by both full or partial rotational autofrettage.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45641699","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: 1

Asymptotic Crack Size of a Prototype Sized Pipe Bend and Comparison with A16 Master Curve 原型弯管的渐进裂纹尺寸及其与A16主曲线的比较

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-12 DOI: 10.1115/1.4053850

S. R, B. Rao, K. Velusamy

引用次数: 1

On the Modeling of Gas and Liquid Leaks Through Packed Glands 气体和液体通过填料压盖泄漏的模型研究

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-11 DOI: 10.1115/1.4053830

Ali Salah Omar Aweimer, A. Bouzid

{"title":"On the Modeling of Gas and Liquid Leaks Through Packed Glands","authors":"Ali Salah Omar Aweimer, A. Bouzid","doi":"10.1115/1.4053830","DOIUrl":"https://doi.org/10.1115/1.4053830","url":null,"abstract":"\u0000 The prediction of gas and liquid leak rates through packed glands is overlooked and the very few studies available in the literature focus on the packing axial stress distribution. For better prediction of leakage, the change of porosity with length due to this non-uniform axial stress must be accounted for. Our previous theoretical model on leakage predictions are based on uniform capillaries. In this paper, a new model that accounts for the change of the capillary diameter with the axial stress is developed for gaseous leak and a straight capillary model for liquid leaks are developed.\u0000 The first slip flow condition is used to predict gas and liquid flow considering straight capillary model and a non-uniform capillary model the area of which dependents on the axial stress in the packing rings. An approach that uses an analytical-computational methodology based on the number and the size of pores obtained experimentally is adopted to predict gas and liquid leak rates in both the uniform and non-uniform compressed packed gland models. The Navier-Stokes equations associated with slip boundary condition at the wall are used to predict leakage. Experimental tests with helium, argon, nitrogen and air for gazes and water and kerosene for liquids are used to validate the models. The porosity parameters characterization is conducted experimentally with a reference gas namely helium at different gland stresses and pressures.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43260847","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

Overview of Nuclear Piping Seismic Verification 核管道地震验证概述

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-11 DOI: 10.1115/1.4053831

H. Abe, N. Chokshi

{"title":"Overview of Nuclear Piping Seismic Verification","authors":"H. Abe, N. Chokshi","doi":"10.1115/1.4053831","DOIUrl":"https://doi.org/10.1115/1.4053831","url":null,"abstract":"\u0000 Nuclear power has gone through several transitional phases worldwide with early development, design, and construction in 1960s,1970s, and 1980s, particularly in Japan and US. There were some major research programs conducted during those years to develop methodology and prove the technology. Much of this knowledge is still very relevant and applicable and would be useful to young engineers and new professional coming to the nuclear industry. One of such programs is seismic verification of major structures, systems, and components (SSCs) by tests in Japan during the period of 1981 through 2004 at a large shaking table facility. Opportunities for conducting such large tests are not likely in the current environment of the industry and, therefore, one of the objectives of this paper is to summarize some earlier tests to raise awareness for the newcomers to the industry.\u0000 This paper discusses on Seismic verification tests of PWR and BWR Primary Loop, Main Steam and Feed Water line, Ultimate Strength of Piping and eroded piping , conducted in Japan. In particular, this paper focuses on: insights obtained from the test results; comparisons of test results with responses during actual earthquakes; collaboration of Japan and US in these tests; observations on robustness of Japanese seismic design; how the results relate to current issues; and use of these results from the future perspectives.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46293704","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

Deterministic and Probabilistic Evaluation of Seismic Loads on RPV Internals including Nonlinear Effects 包括非线性效应在内的RPV内部地震荷载的确定性和概率评估

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-04 DOI: 10.1115/1.4053753

Johannes Schmidl, M. Pellissetti, Eugen Fütterer, R. Hilpert, A. Nykyforchyn, Sunay Staeuble Akcay

{"title":"Deterministic and Probabilistic Evaluation of Seismic Loads on RPV Internals including Nonlinear Effects","authors":"Johannes Schmidl, M. Pellissetti, Eugen Fütterer, R. Hilpert, A. Nykyforchyn, Sunay Staeuble Akcay","doi":"10.1115/1.4053753","DOIUrl":"https://doi.org/10.1115/1.4053753","url":null,"abstract":"\u0000 The paper presents analytical results for the dynamic analysis of the control rod drive mechanisms (CRDM) and selected Reactor Pressure Vessel (RPV) internals, i.e. core barrel (CB) upper flange and upper core plate centering, as well as resulting stresses. The model for the dynamic analysis of the RPV Internals with CESHOCK consists of springs and lumped masses, combined with beam elements.\u0000 The model is taking into account material nonlinearities, sliding, friction and gap/impact effects inside the RPV. Refined finite element modelling of contact regions is used to calibrate the force-displacement relationship used in the dynamic model.\u0000 Both deterministic and probabilistic analyses are presented. The excitations are based on upstream time history (TH) analyses with a coupled model of the nuclear steam supply system (NSSS) and the reactor building. Variability of ground motion parameters (shear modulus and damping) and building parameters (Young's modulus and damping) is taken into account.\u0000 The deterministic analyses confirm that the core barrel upper flange is the most highly stressed part of the RPV internals in case of seismic excitations.\u0000 The probabilistic analyses show that there is a robust correlation between the spectral acceleration at the fundamental frequency of the core barrel and the maximum load on the core barrel flange. This is in agreement with one of the standard assumptions adopted for fragility analysis in the nuclear industry and is confirmed for the core barrel flange in the present analysis.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44774601","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

Damage Model Prediction of Crack Initiation and Propagation in Five Fracture Geometries for X80 Pipeline Steel X80管线钢五种断裂形态裂纹萌生和扩展的损伤模型预测

IF 1 4区工程技术

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-02-02 DOI: 10.1115/1.4053737

B. Williams, J. Xue, Su Xu, D. Park, W. Tyson

{"title":"Damage Model Prediction of Crack Initiation and Propagation in Five Fracture Geometries for X80 Pipeline Steel","authors":"B. Williams, J. Xue, Su Xu, D. Park, W. Tyson","doi":"10.1115/1.4053737","DOIUrl":"https://doi.org/10.1115/1.4053737","url":null,"abstract":"\u0000 Test specimens used to calibrate damage-mechanics models are designed to produce a range of stress triaxialities and Lode angles to accurately capture the fracture envelope of the metal. Many of these specimens have lower constraint than deeply-notched fracture specimens that undergo stable tearing and have high constraint at the crack tip. Often just one or two fracture geometries are used to calibrate the model. In the current work, the ability of a damage model to capture variability associated with constraint at a crack tip, particularly for crack initiation, is assessed. A recent round-robin [1] study on the initiation toughness of X80 provided data for five fracture specimens in which crack tip constraint varied. As a damage model for X80 was not available, the well-calibrated MMC damage models from literature for X65 and X70 were used as a starting point for the model. Experimental data from the single Compact Tension C(T) specimen was used to slightly modify the X65 and X70 models to capture the X80 fracture response. The MMC damage model was applied in FEA to simulate both the crack initiation and propagation responses of Single-Edge-Notched-Tension (SENT) and surface-cracked pipe specimens. Except for a low J-integral at initiation predicted for the C(T) specimen, the remaining predicted responses for force, pressure, and initiation were in good agreement with the experimental data provided in the round-robin.","PeriodicalId":50080,"journal":{"name":"Journal of Pressure Vessel Technology-Transactions of the Asme","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47126777","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: 2