Journal of Pressure Vessel Technology最新文献

Prestressing Estimation for Multilayer Clamping High Pressure Vessel Laminates 多层夹合高压容器层压板的预应力估算

Journal of Pressure Vessel Technology Pub Date : 2024-07-20 DOI: 10.1115/1.4066003

Zhengyan Xiao, Xuesheng Wang, Hao Wang, Jiaming Cao, Yuyang Yuan

{"title":"Prestressing Estimation for Multilayer Clamping High Pressure Vessel Laminates","authors":"Zhengyan Xiao, Xuesheng Wang, Hao Wang, Jiaming Cao, Yuyang Yuan","doi":"10.1115/1.4066003","DOIUrl":"https://doi.org/10.1115/1.4066003","url":null,"abstract":"\u0000 The stresses on multilayer high pressure vessels during service have been extensively studied.However,there is still a lack of detailed and reliable theoretical analyses of a series of hidden problems in manufacturing,such as the prestressing of laminates during the manufacturing process and,where relevant,the initial inner cylinder thickness.In order to solve the problem of prestressing estimation for laminates,in this study,based on the assumption of uniform contact pressure,the equations for the interlaminar contact pressure as well as the residual circumferential stress expressed in terms of the initial circumferential stress of the laminate are derived and verified by finite element analysis.In the 16-layer model, the maximum positive deviation was +1.47% and the maximum negative deviation was -0.08%.Theoretical equations show that each laminate layer can produce a larger residual compressive stress on the inner cylinder at a smaller circumferential stress, thus improving the fatigue performance of the multilayer vessels.As the number of layers increases,the inner cylinder may first experience external pressure destabilization,and thus the contact pressure P1 at the outer wall surface of the inner cylinder needs to be controlled to remain below the critical pressure Pcr of the inner cylinder.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"122 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141820213","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 Behavior of Buried Hdpe Pipe Subjected to Surface Load: Constitutive Modeling and FEM Simulations 承受表面荷载的埋地 Hdpe 管道的力学行为：构成模型和有限元模拟

Journal of Pressure Vessel Technology Pub Date : 2024-07-11 DOI: 10.1115/1.4065918

Junqiang Wang, Sixi Zha, Yang-jun-qi Wang, Ping Zhang, Hui-qing Lan

{"title":"Mechanical Behavior of Buried Hdpe Pipe Subjected to Surface Load: Constitutive Modeling and FEM Simulations","authors":"Junqiang Wang, Sixi Zha, Yang-jun-qi Wang, Ping Zhang, Hui-qing Lan","doi":"10.1115/1.4065918","DOIUrl":"https://doi.org/10.1115/1.4065918","url":null,"abstract":"\u0000 In this paper, the Sherwood-Frost constitutive model was firstly used to simulate the stress response and deformation process of buried HDPE pipe subjected to surface load, where parameters in this model were obtained by fitting the results of uniaxial tensile tests with different rate and the pipe-soil model was conducted in ABAQUS. Apparent stress concentration and large deformation are observed in pipe cross-section and are closely related to the magnitude and location of surface load. The increment of surface load and offset displacement have opposite effects on the mechanical behavior of pipes. Additionally, the location of the maximum stress appears to shift from the top or bottom to the left and right sides of the pipe cross-section with the increment of surface load, and the region of peak hoop stress will show a decreasing trend of counterclockwise rotation. Then, based on stress failure criterion, the relationship between the ultimate bearing capacity of the pipe and the offset displacement was determined, which decided by the angle between the ground and the line connecting load center and cross-section center of pipe. Finally, an offset of 0.6m is a value of interest. When the offset between the load position and the pipe exceeds 0.6m, the ultimate bearing capacity of the pipe will increase significantly with the increase of the offset. The results of the above research could provide the reference for the safety evaluation and maintenance strategy of gas polyethylene pipe under the surface load.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"20 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655413","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

Shock Response of Water-Protected Spherical Explosion Containment Vessels 水保护球形爆炸容器的冲击响应

Journal of Pressure Vessel Technology Pub Date : 2024-07-04 DOI: 10.1115/1.4065894

Zhenfeng Liu, Xiaojie Li, Yang Wang, Honghao Yan, Dezheng Zhou

{"title":"Shock Response of Water-Protected Spherical Explosion Containment Vessels","authors":"Zhenfeng Liu, Xiaojie Li, Yang Wang, Honghao Yan, Dezheng Zhou","doi":"10.1115/1.4065894","DOIUrl":"https://doi.org/10.1115/1.4065894","url":null,"abstract":"\u0000 Explosion containment vessels (ECVs) are important equipment used for underwater explosion experiment research. In this paper, a method is proposed to improve the blast resistance of the ECV by placing it in the water medium. The shock response caused by the underwater explosion in a spherical ECV is studied. The single-layer thin-walled spherical vessel shell submerged in an infinite domain water medium is deduced and simplified as a single-degree-of-freedom elastic vibration system with viscous damping. The underwater explosion shock wave is simplified to an exponential shock loading, and the analytical solutions of the radial shock vibration of the spherical shell are obtained using Duhamel's integrals. Compared with the numerical simulation results, the accuracy of the theoretical model is verified. The study results show that the water medium radiates out vibration energy and plays an important role in eliminating vibration through damping. It's found that the vibration damping ratio can be controlled by adjusting the vessel radius and thickness. So that the vibration of the shell can be controlled within three periods and the impact fatigue can be reduced. In addition, the radiation damping of the water medium greatly reduces the maximum radial displacement of the spherical shell, which significantly improves the blast resistance of the spherical shell.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141679464","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

Validity of Toughness Measurements From Miniature Specimens Failing in Different Fracture Modes 在不同断裂模式下失效的微型试样韧性测量的有效性

Journal of Pressure Vessel Technology Pub Date : 2024-07-01 DOI: 10.1115/1.4065854

Susan Ortner, M. Sánchez, John Echols, S. Cicero, Paul Chekhonin

{"title":"Validity of Toughness Measurements From Miniature Specimens Failing in Different Fracture Modes","authors":"Susan Ortner, M. Sánchez, John Echols, S. Cicero, Paul Chekhonin","doi":"10.1115/1.4065854","DOIUrl":"https://doi.org/10.1115/1.4065854","url":null,"abstract":"\u0000 Using mini-C(T) (4 mm thick, 0.16T) specimens to determine toughness in reactor pressure vessel steels permits the ductile to brittle transition temperature to be derived from small amounts of material and allows more effective use of surveillance specimens. However, questions have been raised as to whether the failure mechanisms are the same in miniature and large specimens, something that must be ensured when transferring fracture results obtained in mini-C(T) specimens to larger components. This work, performed within the FRACTESUS project, presents toughness measurements and detailed fractography on both a homogeneously brittle base metal and a relatively ductile, inhomogeneous weld to assess the transferability of fracture data. The fractography shows that brittle fracture initiates within the part of specimen experiencing small scale yielding, so long as the toughness measurement is valid. Similarly, although the precrack front asymmetry appears more marked in smaller specimens, as long as the deviation from planarity is within the ASTM E1921 limits, the asymmetry does not affect the location of the initiation site. For materials showing a variety of fracture modes, the fracture modes observed at the initiation sites are consistent with those observed in larger specimens. Where data are available, the stress and strain conditions at the initiation sites are also found to be consistent in mini-C(T) and larger specimens. These observations support the thesis that toughness measurements made on mini-C(T) specimens reflect the same material characteristics and failure mechanisms as those made on larger specimens.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141712625","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

A Forward Sensitivity Analysis and Design of U-shaped Bellows Considering the Radial Compensation Capability Under Internal Pressure 考虑内压下径向补偿能力的 U 形波纹管前向敏感性分析和设计

Journal of Pressure Vessel Technology Pub Date : 2024-07-01 DOI: 10.1115/1.4065835

Haojie Wang, Tao Li, Tao He, Yang Xia, Qichao Chen, Yefeng Qin

{"title":"A Forward Sensitivity Analysis and Design of U-shaped Bellows Considering the Radial Compensation Capability Under Internal Pressure","authors":"Haojie Wang, Tao Li, Tao He, Yang Xia, Qichao Chen, Yefeng Qin","doi":"10.1115/1.4065835","DOIUrl":"https://doi.org/10.1115/1.4065835","url":null,"abstract":"\u0000 Bellows serve as integral component within a piping system, which withstand displacement loads and internal pressure loads. In this study a forward design process considering the sensitivity of the structural parameters of the bellows to the bending stiffness and strength is provided. The sensitivity analysis of structure design parameters, such as convolution height, convolution pitch, ply thickness, and convolution number, on radial compensation capability of U-shaped bellows under internal pressure is conducted. The influences of the geometric parameters on the strength performance of U-shaped bellows under internal pressure and radial displacement loads are also investigated. In order to improve the radial displacement compensation ability and to obtain better pressure resistance performance, a mathematical model is established to describe the performance of bellows and multi-object optimization of bellows is conducted. The results show that the ply thickness has the greatest impact on bending stiffness and strength, and the optimized model has lower stiffness and higher strength compared to the initial model.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"21 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141702356","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

Application of C(t)-integral Solutions in Extending ASME BPVC Section Xi Division 2 Code Case N-934 for Transient Creep Crack Growth 应用 C(t)积分解法扩展 ASME BPVC 第 2 分部第 Xi 条规范案例 N-934，以解决瞬态蠕变裂纹生长问题

Journal of Pressure Vessel Technology Pub Date : 2024-06-04 DOI: 10.1115/1.4065683

Markian P. Petkov, Mark C. Messner

引用次数: 0

Design and Effect Evaluation of a Hydrogen-Natural Gas Mixing Device at Jingbian Compressor Station 靖边压气站氢气-天然气混合装置的设计与效果评估

Journal of Pressure Vessel Technology Pub Date : 2024-05-21 DOI: 10.1115/1.4064768

wu Liu, Haonan Zhou, Bin Huang, Pengfei Lu

{"title":"Design and Effect Evaluation of a Hydrogen-Natural Gas Mixing Device at Jingbian Compressor Station","authors":"wu Liu, Haonan Zhou, Bin Huang, Pengfei Lu","doi":"10.1115/1.4064768","DOIUrl":"https://doi.org/10.1115/1.4064768","url":null,"abstract":"\u0000 Hydrogen gas is an environmentally friendly alternative energy source with zero emissions, making it highly valuable for replacing fossil fuels and reducing carbon emissions. One effective method of transporting hydrogen gas is by injecting it into existing natural gas pipelines. In this research, we focus on the Jingbian compressor station. This station is used for hydrogenation, blending hydrogen with the natural gas flowing through the pipelines. We propose a suitable process for hydrogen blending and design a mixing device to facilitate this process. To evaluate the mixing effect of the blended gas, we conducted numerical simulations to analyze the velocity and concentration distribution along the continuous section of the hydrogen blending pipeline. The results indicated that achieving a hydrogen branch length of 1/2 the diameter of the natural gas main pipe and a hydrogen flow rate of 10% resulted in a nonuniformity of hydrogen concentration at L = 30D of less than 0.05. Furthermore, when the hydrogen concentration was set at 3%, 10%, and 30%, the hydrogen concentration in the cross-section of the pipe gradually approached the expected concentration as the mixed gas flowed. It is worth noting that during transportation of hydrogen-containing natural gas to the outlet, the velocity distribution on the cross-section remained asymmetric, potentially leading to measurement errors. However, the use of a flow conditioner resulted in a reduction in hydrogen nonuniformity and minimized velocity fluctuations, resulting in a small and uniformly distributed flow, which is advantageous for accurate measurement and transportation purposes.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"8 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141114448","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

Optimisation Study to Reduce Weight of Tube Sheet for Spiral Wound Heat Exchanger based on ANSYS 基于 ANSYS 的螺旋缠绕式热交换器管板减重优化研究

Journal of Pressure Vessel Technology Pub Date : 2024-05-21 DOI: 10.1115/1.4065583

Jinxing Wu, Jiawen Li, Yabo Chen

引用次数: 0

Mean stress correction of S45C carbon steel based on crack growth concept (Proposal of non-closure model) 基于裂纹增长概念的 S45C 碳钢平均应力修正（非闭合模型提案）

Journal of Pressure Vessel Technology Pub Date : 2024-05-21 DOI: 10.1115/1.4065587

Masayuki Kamaya

引用次数: 0

Experiment On the Excitation of Vapor Behavior and the Vibration by Thermal Flow Under C-Tube Pool Boiling Model C 型管池沸腾模型下热流激发蒸汽行为和振动的实验

Journal of Pressure Vessel Technology Pub Date : 2024-05-21 DOI: 10.1115/1.4065581

Ruosi Xu, Wei Tan, JiaoJiao Dong, Kai Guo, Haiying Zhang, Heng Wang, Guorui Zhu

{"title":"Experiment On the Excitation of Vapor Behavior and the Vibration by Thermal Flow Under C-Tube Pool Boiling Model","authors":"Ruosi Xu, Wei Tan, JiaoJiao Dong, Kai Guo, Haiying Zhang, Heng Wang, Guorui Zhu","doi":"10.1115/1.4065581","DOIUrl":"https://doi.org/10.1115/1.4065581","url":null,"abstract":"\u0000 As an important safety equipment in AP1000, the passive residual heat removal heat exchanger (PRHR HX) with C- tube is responsible for timely removing heat from the reactor core in accident. A C-tube heating device was setup to investigate the flow characteristics of the in-containment refueling water storage tank (IRWST), and the vibration characteristics of the heat exchanger tube. The C-tube frequency in the pool boiling condition is 0-0.660 Hz. There is no resonance with the first natural frequency of 8.98 Hz. The IRWST temperature field can be divided into slow-heating period, fast-heating period, boiling period. Steam vapor exists in three periods, condensation and collapse of vapor concentrate on horizontal tube. The fast-heating period exists the subcooling degree ΔTsub for the most intense vapor excitation, ΔTsub is in the range of 13~16 °C. In term of thermal flow excitation vibration, the existence of the cross flow with C-plane direction is in the transition period from the slow-heating period to the fast-heating period, which excites the maximum RMS amplitude 0.039 mm and 0.034 mm at the midpoint of upper horizontal tube and vertical tube. When the fluid enters fast-heating period, the direction of flow changes into the normal C-plane. Normal RMS amplitude reached maximum 0.02 mm at upper 1/4 of the vertical tube in boiling period. The above research provides important data support for the safety and reliability of PRHR HX.","PeriodicalId":513862,"journal":{"name":"Journal of Pressure Vessel Technology","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141118470","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