Research and Review Journal of Nondestructive Testing最新文献_第8页

Strategies for pipeline inspection using mobile robots 基于移动机器人的管道检测策略

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28082

J Zhang, X. Niu, A. Croxford, B. Drinkwater

{"title":"Strategies for pipeline inspection using mobile robots","authors":"J Zhang, X. Niu, A. Croxford, B. Drinkwater","doi":"10.58286/28082","DOIUrl":"https://doi.org/10.58286/28082","url":null,"abstract":"\u0000Continuous non-destructive monitoring of large-scale pipelines is extremely challenging with traditional manual inspections. In this paper, we explore possible strategies that a collection of inspection robots could adopt to address this challenge. We envision the continuous inspection of a pipe performed by multiple robots or a single robot that combines measurements from multiple locations. The robots use guided ultrasonic waves to detect defects and interrogate their locations. The experimental inspection works were performed on a 3-meter-long steel pipe with multiple defects. The whole inspection process was divided into a defect detection stage and a defect localisation stage. In the detection stage the receiver operating characteristic defines a threshold to find a detection zone in which a defect is thought to be present. In the localisation stage, further six measurements arranged in a pentagon with a central measurement point are made to locate the defect within this zone to a certain accuracy. We also discussed the effect of sensor misposition on defect location accuracy using Monte Carlo simulations. As predicted from simulation, seven of nine defects on the pipe were detected and located with reasonable defect location accuracy. This accuracy was further improved by using additional measurements. A methodology by which mobile robots can inspect large pipelines has been described and demonstrated on detecting and localising multiple defects on a 3-mm-long steel pipe. This will benefit a workable approach to the use of autonomous (or semiautonomous) mobile robots for the inspection of large structures that is just the beginning of exploration in the area.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127081462","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

Modelling Crystallographic Texture Evaluation and Non-Destructive Measurement of Magnetic Anisotropy using an Electromagnetic Sensor in Interstitial Free (If) Steels 用电磁传感器模拟无间隙钢的晶体织构评价和磁各向异性无损测量

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28200

M. Jolfaei, Jun Liu, Lei Zhou, F. van den Berg, C. Davis

{"title":"Modelling Crystallographic Texture Evaluation and Non-Destructive Measurement of Magnetic Anisotropy using an Electromagnetic Sensor in Interstitial Free (If) Steels","authors":"M. Jolfaei, Jun Liu, Lei Zhou, F. van den Berg, C. Davis","doi":"10.58286/28200","DOIUrl":"https://doi.org/10.58286/28200","url":null,"abstract":"\u0000Interstitial free (IF) steels are popular in the automotive industry for applications requiring good ductility (formability), strength and a superior surface quality. Magnetic anisotropy measurement can be used to gain information about the crystallographic texture, which is an important property controlling strength and especially the formability, for example rvalues. The crystallographic texture is generated during rolling and subsequent recrystallisation during the annealing heat treatment. A set of IF steel specimens, at different states of recrystallisation (cold rolled, partially recrystallised and fully recrystallised) and accordingly different texture components have been used to investigate measurement and prediction of magnetic anisotropy. A finite element microstructure model that considers crystallographic texture based on magnetic domain theory has been used for the evaluation of magnetic anisotropy in polycrystalline steels. In addition, a laboratory based electromagnetic (EM) U shaped sensor has been proposed to determine the magnetic anisotropy in IF samples by measuring at angles varying from 0° to 90°, in steps of 15°, with respect to the rolling direction. Kernel Average Misorientation (KAM) values from Electron Back Scattered Diffraction (EBSD) characterisation of the samples has been used to evaluate the recrystallisation fraction and correlate that to the texture.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133807199","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

Automatized Scaling Monitoring in Pipelines with Resonance Testing 基于共振测试的管道缩放自动化监测

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28183

Isabelle Stüwe, Paul Pasch, C. Grosse

{"title":"Automatized Scaling Monitoring in Pipelines with Resonance Testing","authors":"Isabelle Stüwe, Paul Pasch, C. Grosse","doi":"10.58286/28183","DOIUrl":"https://doi.org/10.58286/28183","url":null,"abstract":"\u0000Scaling is a significant cause of efficiency loss, downtime and maintenance costs in almost all industries in which pipelines play an integral role. In this work, a non-invasive, cost-effective and automatized monitoring approach to detect the onset and evolution of scaling growth was developed. The designated field of interest was geothermal plants, which particularly struggle with calcitic scaling in Bavaria. An additional criterion that had to be met was therefore applicability at high temperatures. A resonance testing setup, consisting of automatized excitation using a solenoid-based impactor, piezoelectric acceleration sensors coupled to the pipe, an oscilloscope, a signal conditioner and mounting gear, serves to collect a number of amplitude-time signals. These are Fourier transformed, averaged and evaluated in the frequency domain. By coupling the sensors (standard operating temperature limit ~ 120 °C) to the pipe with a high-temperature couplant and samarium-cobalt magnets, the setup is robust in an environment with elevated temperatures. Such an environment is presented by the injection borehole at a geothermal power plant where in-situ measurements are currently being carried out (60 – 80 °C). It can be observed that the frequency peak positions shift with scaling thickness. In order to analyze this shift in frequency, an experiment was conducted in which a heavily scaled piece of pipeline from the production well of a geothermal power plant in Bavaria was inserted in a specially designed descaling test rig. An acidic solution was pumped through the pipe, gradually etching away the calcitic scaling. By carrying out resonance tests at regular time intervals over the course of the descaling process, a continuous reduction in peak frequencies could be determined with decreasing scaling thickness. With an adequately chosen time interval and appropriate measurement parameters (sampling rate, signal length, gain), the onset- and growth of scaling are measurable in the submillimeter regime.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129368745","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

Thermoacoustic phased-array radiators – Theory, characteristics, and applications 热声相控阵散热器。理论、特性和应用

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28064

Daniel Hufschläger, Dirk Gohlke, M. Weise, K. Bente, M. Gaal

{"title":"Thermoacoustic phased-array radiators – Theory, characteristics, and applications","authors":"Daniel Hufschläger, Dirk Gohlke, M. Weise, K. Bente, M. Gaal","doi":"10.58286/28064","DOIUrl":"https://doi.org/10.58286/28064","url":null,"abstract":"\u0000Standard non-invasive acoustic non-destructive testing (NDT) methods like testing in contact or using immersion tank arrangements are limited since the probes need to be in direct contact with the test piece or using a fluid as coupling media. Air-coupled ultrasonic testing avoids these limitations and enables new testing methods. Two up-and-coming transducer technologies are recognized as promising: transducers using ferroelectrets and transmitters based on the thermoacoustic principle. Thermoacoustic radiators based on thin-film technology offer a resonant-free generation of ultrasound. The resonance-free operation enables the wideband generation of acoustics waves and promises advantages for existing NDT methods. Using specially shaped substrates and electrodes enables the fabrication of planar and focused thermoacoustic radiators. This contribution presents the latest results of our ongoing research regarding thermoacoustic radiators, which is the thermoacoustic phased-array. Phased-array transducers offer the on-the-fly change of the steering angle and the position of the focal point without moving or modifying the transducer itself. Combining both technologies, thermoacoustic emitter and the phasedarray principle broaden the spectrum of classical NDT applications and modern approaches like the excitation of guided waves or structural health monitoring. In detail, we modelled the sound field of a self-fabricated thermoacoustic phased-array radiator, characterised the emitter elementwise and tested several application scenarios (e.g., transmission, beam steering, focusing and the excitation of guided waves).\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"219 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115491093","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 the nuclear method used in earthworks quality control of civil infrastructures 核方法在民用基础设施土方工程质量控制中的应用研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28198

J. Neves, Cláudia Silva, A. M. Duarte

{"title":"Study on the nuclear method used in earthworks quality control of civil infrastructures","authors":"J. Neves, Cláudia Silva, A. M. Duarte","doi":"10.58286/28198","DOIUrl":"https://doi.org/10.58286/28198","url":null,"abstract":"\u0000Compaction is essential in earthworks of civil infrastructures, such as dam embankments, building foundations, roads, and other transport infrastructures. The nuclear method is a non-destructive test that has been one of the most used field tests in the quality control of compaction for a long time due to its easy operation and accuracy. The technique uses nuclear equipment to measure soil and aggregates' moisture content and in-situ density. The fidelity of the method according to Portuguese technology is still unknown. The paper has two main objectives: (1) to describe the application of the non-destructive testing method to the quality control of compaction; (2) to present the repeatability and reproducibility of the method in its application to the case of soils based on proficiency tests. The paper presents the methodology followed in carrying out the proficiency tests and analysing the results related to the method's fidelity. The work points out the most critical aspects of the test and presents the repeatability and reproducibility related to in situ density and moisture content in the cases of direct transmission and backscatter measurements.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123383525","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

Influence of Biaxial Stress on Magnetic Behavior of Hot-Rolled Steels 双轴应力对热轧钢磁性能的影响

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28160

O. Hubert, J. Taurines, Z. Maazaz, R. Crepinge, C. Celada-Casero, F. van den Berg

引用次数: 0

Comparative study of advanced image reconstruction algorithms for complex arbitrary components 复杂任意分量图像重建算法的比较研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28221

Sumana Sumana, CN Macleod, Simon Parke, D. Lines, Jon Bates

{"title":"Comparative study of advanced image reconstruction algorithms for complex arbitrary components","authors":"Sumana Sumana, CN Macleod, Simon Parke, D. Lines, Jon Bates","doi":"10.58286/28221","DOIUrl":"https://doi.org/10.58286/28221","url":null,"abstract":"\u0000Accurate ultrasonic imaging and inspection of specimens with non-planar complex surfaces are often challenging from both transducer coupling and imaging perspectives. Several inspection strategies have been developed to inspect such complex interfaced components such as flat arrays with flexible wedges or water-filled chambers with a flexible membrane. In these methods, firstly surface profiles are estimated and then Fermat’s principle or other algorithms are applied to calculate delay laws. The main drawback of these methods is the longer computation time and therefore real time inspection is limited, also a coupling problem due to the complex geometries. Alternative approaches have been developed to compute the ultrasonic beam paths such as the Fast-Marching Method (FMM), Dijkstra’s algorithms, numerical analysis, bisection and root-finding algorithms for the inspection of complex surface components. These algorithms can be applied in two and three-dimensional domains resulting in high computation time. This work presents an experimental comparison of an iterative beamforming method for arbitrary shaped surface profile imaging against both Full Matrix Capture-Total Focusing Method (FMC-TFM) and CIVA simulation on an aluminium calibration block with Side drilled holes (SDHs) at various depths in the range of 15-80 mm. The performance of the iterative beamforming method is evaluated in terms of sensitivity, Signal to Noise Ratio (SNR) and Array Performance Indicators (API). The method provides a 2 dB improved SNR when compared to FMC-TFM.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124812709","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

Tomosynthesis for large additive manufacturing parts 大型增材制造零件的断层合成

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28193

A. Obaton, Damien Koch, Joachim Coline, Didier Flotté

{"title":"Tomosynthesis for large additive manufacturing parts","authors":"A. Obaton, Damien Koch, Joachim Coline, Didier Flotté","doi":"10.58286/28193","DOIUrl":"https://doi.org/10.58286/28193","url":null,"abstract":"\u0000X-ray computed tomography (XCT) is up to now the golden method for non-destructive\u0000\u0000quality inspection of additively manufacturing (AM) parts. Indeed, the method gets rid of\u0000\u0000the complexity of shape and high surface roughness typical of AM parts. However, when\u0000\u0000one side of the part is too thick, which happens frequently with parts manufactured with\u0000\u0000a direct energy deposition (DED) process implementing a metallic wire and an arc (DEDArc), XCT reaches its limits. Moreover, XCT is a high cost and time-consuming method,\u0000\u0000thus alternative quality assurance methods are required. Tomosynthesis appears to be an\u0000\u0000interesting alternative solution while the method does not require the X-rays to cross the\u0000\u0000thicker section of the part to be inspected. In tomosynthesis, the projections are not\u0000\u0000acquired over 360°, but over less than 180°, so it is possible to ensure that the X-ray\u0000\u0000source remains on the thinner side of the part to acquire the projections. Then, instead of\u0000\u0000proceeding to the reconstruction of a three-dimensional (3D) image, the projections are\u0000\u0000assembled and registered by a deblurring algorithm to provide a stack of 2D images on\u0000\u0000which a software enables to adjust the focus on each 2D image to analyse the part 2D\u0000\u0000image by 2D image in depth.\u0000\u0000In this paper, a comparison of X-ray radiography (RT), XCT and tomosynthesis images\u0000\u0000reveals the potential of tomosynthesis on a steel DED-Arc flat wall-shaped specimen. The\u0000\u0000comparison validates the tomosynthesis images on a part whose thickness still enables\u0000\u0000XCT to be performed, to demonstrate the potential of tomosynthesis when XCT reaches\u0000\u0000its limits.\u0000\u0000\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126245586","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

Acoustic non-destructive testing of UAS´s propellers during predeparture and post-flight checks 在起飞前和飞行后检查期间，UAS螺旋桨的声学无损测试

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28093

Maria Soria Gomez, Ann-Kathrin Koschlik, Emy Arts, F. Raddatz, Gerko Wende

{"title":"Acoustic non-destructive testing of UAS´s propellers during predeparture and post-flight checks","authors":"Maria Soria Gomez, Ann-Kathrin Koschlik, Emy Arts, F. Raddatz, Gerko Wende","doi":"10.58286/28093","DOIUrl":"https://doi.org/10.58286/28093","url":null,"abstract":"\u0000Unmanned Aerial System (UAS) activities have increased steeply in the last years, market research forecasts a continuous increase in the near future. The rapid growth of this industry, however, has outpaced the development of rules and systems to govern their use, as well as those to ensure a safe operation before, during and after flight. Maintenance, Repair and Overhaul (MRO) aspects will gain relevance as more and more UAS take to the sky. Rotary-wing UAS have 2 or more propellers, which are easily damaged during normal operation of the vehicle. The reduced thrust and increased vibration imply losing performance and setting the UAS structure under stress. With the propellers being the main source of sound of the propulsion system, we propose the use of acoustics to identify damaged propellers. Microphones placed off-board do neither disrupt UAS operation nor reduce the payload capacity. Furthermore, this method does not depend on a particular manufacturer or software. In this paper, we present a concept for the non-destructive testing of multi-copter propellers. The fault diagnosis aims at recognizing the difference in sound between damaged and undamaged propellers. This evaluation takes place before the UAS takes off the ground and after it lands, thus allowing to interrupt a possible dangerous mission or identifying damage occurred during operation. The vehicle is on the ground in an “idle state” where the propellers already spin, but not fast enough to lift it. This state is used for a first analysis of the sound of a single propeller and several propellers, as well as for the generation of data. Next, two approaches for the detection of damage are developed and their performance is evaluated: an analytical approach and a machine learning algorithm based on an autoencoder neural network....\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121966742","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

Computed tomography investigations of 3D aluminum-GMT hybrid profiles manufactured by compression molding 压缩成型制造的三维铝- gmt混合型材的计算机断层扫描研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28205

M. Ellouz, Timotheus Martens, Tim Stallmeister, T. Kordisch, T. Troester

{"title":"Computed tomography investigations of 3D aluminum-GMT hybrid profiles manufactured by compression molding","authors":"M. Ellouz, Timotheus Martens, Tim Stallmeister, T. Kordisch, T. Troester","doi":"10.58286/28205","DOIUrl":"https://doi.org/10.58286/28205","url":null,"abstract":"\u0000The main work issue is to optimize the manufacturing of hybrid profiles bearing loads defined by the automotive application, based on the monitoring of the production quality using computed tomography (CT). This offers an efficient, accurate and non-destructive inspection of the products in terms of time and costs in order to prove the production quality. The investigated parts consisted of glass mat reinforced thermoplastic (GMT) 3D structures covered by aluminum straps (AA5754) with different thicknesses. They were manufactured at varied process temperatures by compression molding. The profiles quality was evaluated by CT, where the designed and actual dimensions were compared and the porosity and the fiber distribution inside the profiles were examined. In a next step, quasi-static three point bending tests were carried out on the produced profiles in order to evaluate the impact of the production effects on the mechanical behavior. First CT results showed an inhomogeneous distribution of the fibers in the matrix especially for the profiles fabricated at lower tool temperature. Pores were also found in the areas with low concentration of fibers. After bending, the cracks tended to propagate along the fiber orientation. Consequently, the main failure mechanisms consisted in inter fiber fracture and delamination of the aluminum strap.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134296971","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