International Journal of Pressure Vessels and Piping最新文献_第9页

Numerical assessment of bolt-tightening procedures in HDPE-steel flange assemblies

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2024.105429

Sherif Ezzeldin , Reem Aladawi , Ahmed Shahin , Imad Barsoum

{"title":"Numerical assessment of bolt-tightening procedures in HDPE-steel flange assemblies","authors":"Sherif Ezzeldin , Reem Aladawi , Ahmed Shahin , Imad Barsoum","doi":"10.1016/j.ijpvp.2024.105429","DOIUrl":"10.1016/j.ijpvp.2024.105429","url":null,"abstract":"<div><div>The interaction between elastic materials, particularly when joining materials with vastly different stiffness, such as high density polyethylene (HDPE) pipes and steel flanges, can significantly influence the bolt pre-load and tightness of the bolted joint. This study investigates the impact of elastic interaction on bolt pre-load in assemblies of HDPE pipes and steel flanges, using finite element analysis (FEA). The work compares the Tetra-Parametric Assembly Method (TAM) with the Elastic Interaction Coefficient Method (EICM) to enhance the bolt tightening procedure in such assemblies. FEA simulations reveal that TAM achieves more uniform load distribution and contact pressure compared to EICM. The study evaluates six different configurations, including both 8-bolt and 28-bolt models, highlighting that assemblies involving HDPE and steel exhibit higher elastic interaction and flange rotation than those with only steel components. Key findings include that TAM effectively predicts the behavior of HDPE and steel assemblies. The results indicate that larger sizes and more bolts increase elastic interaction, which is particularly pronounced in cases with HDPE and steel due to the significant stiffness contrast between the two materials. The 30-30-40 tightening rule proves effective for HDPE-to-steel flange connections, suggesting that TAM is a robust method for achieving uniform contact pressure in such assemblies. This research contributes to developing more reliable designs in industrial applications requiring HDPE and steel flange assemblies.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105429"},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Degradation behavior of a 12 % Cr tempered martensite ferritic steel after 20 years of service

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2025.105437

Yinsheng He , SungYong Chang , BeomSin Kim , Wenyue Zheng , Zhangjian Zhou

{"title":"Degradation behavior of a 12 % Cr tempered martensite ferritic steel after 20 years of service","authors":"Yinsheng He , SungYong Chang , BeomSin Kim , Wenyue Zheng , Zhangjian Zhou","doi":"10.1016/j.ijpvp.2025.105437","DOIUrl":"10.1016/j.ijpvp.2025.105437","url":null,"abstract":"<div><div>The 12 % Cr tempered martensite ferritic steel, X20CrMoV12-1, is an important heat exchanger material for boiler tubes used in fossil-fired power plants over the past three decades. Understanding the degradation behavior of these steels after long-term service is critical, as it directly determines the safe operation and life extension of power plants. However, most investigations have focused on the properties and microstructure based on the laboratory-accelerated test, while the long-term serviced materials are rarely reported. Here, an X20CrMoV12-1 boiler tube that has been serviced as a superheater for 20 years was investigated in terms of hardness, tensile strength and creep rupture tests with corresponding microstructural analysis, aiming to understand its degradation behavior. We found the stability of microhardness and a decrease in room and high temperature tensile strength by 13 % and 17 %, respectively. Importantly, the creep rupture life of the serviced tube is reduced by ∼80 % at 600 °C, attributing to the significant decrease of dislocation density and unstable features of the coarse Laves phases. The microstructural investigation results showed no significant change in the dominant strengthening precipitates of M<sub>23</sub>C<sub>6</sub>, MX and tempered lath structures. However, microstructures of M<sub>23</sub>C<sub>6</sub>, Laves phase and substructures became unstable upon further creep at 600 °C, appearing as spheroidization, dissolution and rapid coarsening, respectively. These results suggested the overheating of the materials should be avoided during the afterward operation and life extension.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105437"},"PeriodicalIF":3.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Influence of parameter uncertainty upon complexity of creep behavior of P91 steel

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-09 DOI: 10.1016/j.ijpvp.2025.105436

Siyu Ren , Xinbao Liu , Lin Zhu , Ping Fan , Chaolu Song , Kai Zhang , Jie Chen , Hongtao Chen

引用次数: 0

Post weld heat treatment of bisalloy 80 steel: Mechanics and industry safety code compatibility

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-07 DOI: 10.1016/j.ijpvp.2025.105434

Houman Alipooramirabad , Anna Paradowska , Mark Reid , Reza Ghomashchi

{"title":"Post weld heat treatment of bisalloy 80 steel: Mechanics and industry safety code compatibility","authors":"Houman Alipooramirabad , Anna Paradowska , Mark Reid , Reza Ghomashchi","doi":"10.1016/j.ijpvp.2025.105434","DOIUrl":"10.1016/j.ijpvp.2025.105434","url":null,"abstract":"<div><div>The present study utilized both in-situ and ex-situ neutron diffraction to evaluate the evolution of residual strains/stresses before, during and after Post-Weld Heat Treatment (PWHT) of quenched and tempered (Q&T) Bisalloy 80 steel welded by pulsed Gas Metal Arc Welding (GMAW-P). It was found that strain/stress relaxation mainly occurred during the reheating step with a high relaxation rate and steep slope (∼67 % of strain relaxation) while linear strain relief was observed during holding (soaking) time. Most of the strain relief occurred within the temperature range of 450°C–600 °C which is believed to be due to creep strain development occurring far earlier than the component reaching the isothermal holding temperature. The ex-situ neutron diffraction measurements were similar to in-situ results confirming the applied PWHT effectively mitigated the residual stresses (the maximum longitudinal stress reduced to around 23 % of the weld metal yield strength).</div><div>The measurements were compared with existing literature data and the current fitness of safety assessment codes (BS7910 and R6). It was found that both assessment codes were conservative for both the transverse and longitudinal residual stresses in the region close to the weld toe. Furthermore, both standards may underestimate through-thickness residual stresses in the transverse direction.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105434"},"PeriodicalIF":3.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical study on the indentation response of mechanically lined pipe

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI: 10.1016/j.ijpvp.2025.105433

Lin Yuan , Jinwei He , Chuangyi Wang , Dongdong Ren

{"title":"Experimental and numerical study on the indentation response of mechanically lined pipe","authors":"Lin Yuan , Jinwei He , Chuangyi Wang , Dongdong Ren","doi":"10.1016/j.ijpvp.2025.105433","DOIUrl":"10.1016/j.ijpvp.2025.105433","url":null,"abstract":"<div><div>Mechanically lined pipe (MLP) has become a low-cost and reliable solution for transporting corrosive hydrocarbons and has been used in many onshore and offshore projects. During the long-term service period, MLP is susceptible to impacts from third-party foreign objects, which can lead to severe local denting and potential failure. The indentation response of MLP to these events is still not fully understood. This paper conducted an experimental and numerical study based on lined pipe specimens fabricated using a custom hydraulic expansion facility. The lined pipes, which have finished diameters of 50 mm, are composed of a carrier made of carbon steel Grade GB45 (AISI 1045) and a liner made of copper Grade T2. Four types of indenters, including spherical, cylindrical, wedge, and square shapes, are adopted to introduce dents into the specimens. The indentation experiment was also performed on single-wall counterpart pipes. The results show that different indenters lead to distinct liner separation profiles along the specimen's length. The axial strain distribution near the dent exhibits opposite behavior between the carrier and liner tubes. In addition, the mechanical contribution of the liner and the influence of carrier pipe thickness are also discussed.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105433"},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Ratcheting behavior in SS316L concentric and eccentric reducers under cyclic axial load and constant internal pressure using DIC method

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI: 10.1016/j.ijpvp.2025.105432

Ali Shahrjerdi, Mohammadreza Mirzabeygi

{"title":"Ratcheting behavior in SS316L concentric and eccentric reducers under cyclic axial load and constant internal pressure using DIC method","authors":"Ali Shahrjerdi, Mohammadreza Mirzabeygi","doi":"10.1016/j.ijpvp.2025.105432","DOIUrl":"10.1016/j.ijpvp.2025.105432","url":null,"abstract":"<div><div>This study uses experimental and numerical methods to examine the impact of average fatigue force, amplitude fatigue force, and internal pressure on the ratcheting behavior of SS316L concentric and eccentric reducers. The material of the samples was first verified through mechanical analyses. Subsequently, the samples were fatigue tested at controlled force and room temperature (25 °C), and strain reading was done at the critical points of the samples by the digital image correlation (DIC) method. Numerical simulations with Abaqus software were conducted to validate the experimental results, confirming the experimental tests' accuracy with an acceptable margin of error. Finally, after ensuring the reliability of the numerical results, the influence of the changes in the parameters mentioned above was numerically investigated. It was observed that as these variables increase, the ratcheting strain also increases in the axial and circumferential directions, with greater sensitivity to the increase in average force and amplitude force.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105432"},"PeriodicalIF":3.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Corrigendum to “In-Line inspection methods and tools for oil and gas pipeline: A review” [Int. J. Pres. Ves. Pip. 214 (2025) 105409]

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-02 DOI: 10.1016/j.ijpvp.2025.105431

Jia Zhang , Mingnan Sun , Lin Qin , Dong Lin , Chang Liu , Jing Li , Chaolang Li , Shaomu Wen , Chuanjun Han

引用次数: 0

BPNN-Assisted restoration of buckling resistance of dented torispherical heads using CFRP

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-01 DOI: 10.1016/j.ijpvp.2024.105428

Ming Zhan , Hao Wang , Wenwei Wu , Haofu Hu , Jian Zhang

{"title":"BPNN-Assisted restoration of buckling resistance of dented torispherical heads using CFRP","authors":"Ming Zhan , Hao Wang , Wenwei Wu , Haofu Hu , Jian Zhang","doi":"10.1016/j.ijpvp.2024.105428","DOIUrl":"10.1016/j.ijpvp.2024.105428","url":null,"abstract":"<div><div>To mitigate the adverse effect of a dent on the load-bearing capacity of torispherical heads, this study proposes a method for repairing dented torispherical heads with carbon-fibre-reinforced polymer (CFRP). The buckling behaviours of four dented torispherical heads, two of which were repaired using the proposed method, were studied through hydrostatic experiments and finite-element analysis (FEA). Experimental buckling load values were consistent with the FEA-based numerical predictions. Subsequently, the effects of the CFRP repair area and fibre orientation on the repair efficacy were investigated through FEA. Furthermore, a backpropagation neural network (BPNN) model was trained to predict the buckling load of repaired torispherical heads. The trained BPNN model was used to analyse the interactive effects of dent depth, dent position, and number of CFRP layers on the buckling load of a repaired torispherical head. The buckling load of dented torispherical heads decreased to 73.15 % of the undented state. After repairing with CFRP, the buckling load was restored to 101.01 % of the undented state. Meanwhile, the trained BPNN model with <em>R</em><sup>2</sup> of 0.9895 on the test set was found to have high prediction accuracy on the buckling load of repaired torispherical heads. Results indicated that a dent can considerably reduce the buckling load of torispherical heads. However, the load-bearing capacity of dented torispherical heads can be fully restored by using the proposed repair method. The findings of this research can act as a reference for the development of buckling resistance restoration methods for dented pressure hulls.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105428"},"PeriodicalIF":3.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 on explosion forming of the liquid hydrogen spherical storage tank by GIMP simulation and experiment

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2024-12-30 DOI: 10.1016/j.ijpvp.2024.105426

Cheng Yu , Lekun Lin , Xiaojie Li , Honghao Yan , Yuxin Wang

{"title":"Study on explosion forming of the liquid hydrogen spherical storage tank by GIMP simulation and experiment","authors":"Cheng Yu , Lekun Lin , Xiaojie Li , Honghao Yan , Yuxin Wang","doi":"10.1016/j.ijpvp.2024.105426","DOIUrl":"10.1016/j.ijpvp.2024.105426","url":null,"abstract":"<div><div>Spherical tanks with a volume of more than 200 m<sup>3</sup> are usually used for the transport and storage of liquid hydrogen, liquid hydrogen spherical storage tanks are mainly manufactured using the split forming and welding technique, which has a long production cycle and high cost. To improve the production efficiency and manufacturing accuracy of spherical tanks and reduce the manufacturing cost, the theoretical model of explosion forming and the manufacturing technology of liquid hydrogen spherical storage tanks are proposed in this paper. Based on the energy criterion, the modeling law formula for the explosion forming of liquid hydrogen spherical tanks is derived. The explosion forming parameters are calculated according to the modeling law, numerical models of the generalized interpolation material point (GIMP) method and LS-DYNA finite element software are constructed according to the modeling law, which is used to simulate the explosion forming process of liquid hydrogen spherical tanks and to conduct the experiment on the explosion forming of scaling model for the liquid hydrogen storage tank. Following a quantitative comparative analysis, the numerical simulation of the explosion forming for liquid hydrogen spherical storage tanks is found to be in agreement with the experimental results. The results show that the modeling law, the numerical simulation of the GIMP method, and the scale model experiment of explosion forming can provide a theoretical basis and accurate technical parameters for the explosion forming of liquid hydrogen spherical storage tanks with various volumes.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105426"},"PeriodicalIF":3.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A new method for predicting residual stress in light alloys using truncated conical indentation

IF 3 2区工程技术

International Journal of Pressure Vessels and Piping Pub Date : 2024-12-30 DOI: 10.1016/j.ijpvp.2024.105427

Hui Chen , Jiling Xiao , Hui Peng , Wei Li , Yujing Liu , Zheng Meng , Penghui Zhao , Simiao Yu , Yingxin Zhou

{"title":"A new method for predicting residual stress in light alloys using truncated conical indentation","authors":"Hui Chen , Jiling Xiao , Hui Peng , Wei Li , Yujing Liu , Zheng Meng , Penghui Zhao , Simiao Yu , Yingxin Zhou","doi":"10.1016/j.ijpvp.2024.105427","DOIUrl":"10.1016/j.ijpvp.2024.105427","url":null,"abstract":"<div><div>A new method was proposed for predicting residual stress in light alloys using truncated conical indentation. In this method, a truncated conical indenter with a cone angle of 120°, insensitive to edge-chamfer and friction effects, was used to test the residual stress of light alloys. Selecting the ratio of indentation work between stressed and unstressed specimens as an analytical parameter, a dimensionless truncated conical indentation (TCI) model related to the ratio of indentation work between stressed and unstressed, material properties, and normalized residual stress was established via dimensional analysis and numerical calculations. The TCI model could predict equi-biaxial residual stress and uniaxial residual stress, and its accuracy was verified in a wide range of light alloys with varying residual stress by numerical simulation. The stability of the TCI model is verified numerically by introducing errors in material parameters. Truncated conical indentation tests were conducted on cruciform specimens and rectangular specimens respectively made of three aluminum alloys. The results exhibited the residual stress predicted by proposed method agrees well with the applied stress, and the relative errors between them were within ±10 % in most cases.</div></div>","PeriodicalId":54946,"journal":{"name":"International Journal of Pressure Vessels and Piping","volume":"214 ","pages":"Article 105427"},"PeriodicalIF":3.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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