Research and Review Journal of Nondestructive Testing最新文献_第3页

Automated misalignment correction method for ultrasonic inspection of CFRP parts CFRP零件超声检测误差自动校正方法

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28130

Alexandre Beausoleil, J. Walter, O. Arés, M. Brassard

引用次数: 0

Metrological characterization of the longitudinal ultrasonic velocity of cylindrical rock cores 圆柱形岩心纵向超声速度的计量表征

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28091

Alex Justen, T. C. Dourado, Ericles de Jesus dos Santos, M. K. M. de Assis, R. Mayworm, Renildo Lopes da Silva, G. C. Morais, S. Miqueleti, R. Costa-Felix

{"title":"Metrological characterization of the longitudinal ultrasonic velocity of cylindrical rock cores","authors":"Alex Justen, T. C. Dourado, Ericles de Jesus dos Santos, M. K. M. de Assis, R. Mayworm, Renildo Lopes da Silva, G. C. Morais, S. Miqueleti, R. Costa-Felix","doi":"10.58286/28091","DOIUrl":"https://doi.org/10.58286/28091","url":null,"abstract":"\u0000The correlation of the use of ultrasonic velocity in rock cores has been a fundamental resource in the analysis of geoscientists and rock engineers. The general rule is that ultrasonic velocities in typically heterogeneous materials, such as composites, rocks, and soils, present greater dispersion than homogeneous ones. This behaviour, although expected due to the more significant internal variation in the composition of its matrix, requires the application of a more cautious measurement protocol, mainly for samples with low parallelism. This work presents a metrological measurement protocol to determine the longitudinal ultrasonic velocities of these materials and their respective measurement uncertainties. The evaluation of the proposed protocol was applied to four samples of cylindrical migmatite rocks, each 76 mm in diameter. The frequency used was centred at 500 kHz. The determination of the transit time in each sample was made from the difference between the first internal reflection of the sample and the direct signal from the receiver. Samples with approximate heights of 51 mm, 62 mm, 77 mm and 101 mm were used. Their faces were divided into four quadrants. Measurements were taken around the geometric centre of the part and in each of the four quadrants. Fivedimensional measurements were performed for each quadrant, and ten transit time measurements were for each of the five defined regions. Due to the low parallelism of the parts, a protocol was adopted where the global uncertainty of each part was increased to that of the part with greater uncertainty. From the results of this research, it was noted that the effect of low parallelism tends to increase the dimensional uncertainty measurements and, consequently, the sample measurement uncertainty values.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"49 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":"121463333","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

Active thermography to look beneath the surface of a historic German aircraft 一架历史悠久的德国飞机表面下的主动热成像

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28137

J. Frisch, C. Blaensdorf, A. Hempfer, Marisa Pamplona-Bartsch, C. Grosse

{"title":"Active thermography to look beneath the surface of a historic German aircraft","authors":"J. Frisch, C. Blaensdorf, A. Hempfer, Marisa Pamplona-Bartsch, C. Grosse","doi":"10.58286/28137","DOIUrl":"https://doi.org/10.58286/28137","url":null,"abstract":"\u0000Thermography is a well-established non-destructive testing technique in materials research and defect detection. In addition, it is used on cultural heritage in the form of buildings and paintings. This contribution explores the utilisation of active thermography on an object of technical heritage – a historic aircraft of the Second World War, the Messerschmitt Me 163 b, as a part of an exhibition in the Deutsches Museum in Munich. Unfortunately, the appearances of many exhibits in museums have been altered before or during their time with the museum and are not in a historically accurate condition. Furthermore, the active service history is often not documented in detail or might have been lost. Both features are equally important in the presentation of information on a displayed item and destructive techniques cannot be employed on historic objects. Hence a non-destructive, non-contact way of examination was chosen in the form of thermography. With the help of phase analysis, flash thermography is also an invaluable tool for the evaluation of layered systems and can differentiate between paint layers. During the research presented herein, traces of abrasion and chemical stripping of older paint layers were visible. This complicates the compilation of sufficient information for a historically accurate restauration with any technique. Nonetheless, flash or pulsed thermography proves to be capable of finding not only identifying markings, defects, and different paint layers, but also the inner workings and substructure of the object under investigation.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"27 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":"131111684","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

Comparison of grain structure models for wave propagation analysis in centrifugally cast stainless steel 离心铸造不锈钢波传播分析的组织模型比较

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28101

M. Nagai, Y. Natsume, Shan Lin

{"title":"Comparison of grain structure models for wave propagation analysis in centrifugally cast stainless steel","authors":"M. Nagai, Y. Natsume, Shan Lin","doi":"10.58286/28101","DOIUrl":"https://doi.org/10.58286/28101","url":null,"abstract":"\u0000Centrifugally cast stainless steel (CASS) is widely used in primary coolant piping of pressurized water reactor plants because of its high corrosion resistance and high strength. An in-service inspection based on ultrasonic testing (UT) has to be conducted for weld joints of primary coolant piping on the basis of JSME Rules on Fitness-forService for Nuclear Power Plants. However, it is difficult to detect and size flaws in CASS components with high accuracy because of the following reasons: Ultrasonic waves are scattered and attenuated due to coarse grains, and anisotropic and heterogeneous properties in CASS lead to ultrasonic beam skewing. Numerical simulations are useful and reasonable ways for better understanding the ultrasonic wave propagation behavior in CASS. To effectively achieve this, the simulation model should include a three-dimensional (3D) grain structure. In this study, we modeled three kinds of the solidification grain structures of centrifugally CASS. One is obtained by using a cellular automaton method, another consists of many hexagonal columns with the same dimensions, and the other is transversely isotropic material. Then these structures were fed into an explicit finite element model for simulating wave propagation and the simulated results were compared with those measured by a laser Doppler vibrometer. Through the comparison, we investigated the applicability of these three kinds of solidification grain structure models to simulation for wave propagation.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"33 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":"131377960","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

Characterization of Microchannels Produced by Friction Stir Channeling: An Experimental Study 搅拌摩擦通道产生的微通道特性的实验研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28176

M. Machado, Wagner Sabor, Ruben Tasnicenco, Daniel Damásio, Telmo G. Santos, C. Vidal

{"title":"Characterization of Microchannels Produced by Friction Stir Channeling: An Experimental Study","authors":"M. Machado, Wagner Sabor, Ruben Tasnicenco, Daniel Damásio, Telmo G. Santos, C. Vidal","doi":"10.58286/28176","DOIUrl":"https://doi.org/10.58286/28176","url":null,"abstract":"\u0000Friction Stir Channeling (FSC) is a recent and innovative solid state manufacturing technology that allows, in a single pass, the opening of continuous internal channels in monolithic components and can be used in the mold and heat exchanger industries. However, the development of reliable Non-Destructive Testing (NDT) for the characterization of the channels is a major challenge. The focus of this work is the non-destructive characterization of micro channels, and the main goal was to experimentally validate which NDT techniques can be used to identify the presence of microchannels, their regularity along the section, and also their location, size, and path. Five NDT techniques were studied: digital radiology; eddy currents; ultrasounds; thermography; and dye penetrants. These techniques were applied to specimens with linear and curvilinear channels. The specimens were produced using tool pins with 0.5 mm diameter which obtained channels with 0.4 mm width and depths of 0.53 mm. Digital radiology and ultrasounds were effective in detecting channels regardless of its dimensions. Eddy currents did not allow to confirm the exclusive presence of the channels due to microstructural changes caused by the FSC process. Thermography using cold fluid injection was not successful in the channel’s characterization due to the extremely low flow. The dye penetrants confirmed the presence of the channels of all dimensions due to the liquid having traveled along the entire path of the curvilinear channel without reaching the surface.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"14 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":"134019558","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

CT-Analysis of the Melting Area inthe Fused Filament Fabrication Process 熔丝制造过程中熔化区域的ct分析

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28063

Julian Ehrler, M. Kornely, Julian Kattinger, M. Kreutzbruck, C. Bonten

{"title":"CT-Analysis of the Melting Area in\u0000the Fused Filament Fabrication Process","authors":"Julian Ehrler, M. Kornely, Julian Kattinger, M. Kreutzbruck, C. Bonten","doi":"10.58286/28063","DOIUrl":"https://doi.org/10.58286/28063","url":null,"abstract":"\u00003D printing has established itself in the 21st century as the process for producing prototypes and very small series. In the plastics sector, the fused filament fabrication (FFF) process is used in particular. A plastic filament is melted in a nozzle and a component is built up layer by layer. As with all manufacturing processes, there is an interest in continuously optimizing and improving the FFF process. One possibility is based on process simulations, which enable a better understanding of the entire process. Afterwards a validation of the simulation with the real process is always necessary. In the case of FFF, this validation was so far only possible to a limited extent. In this work, a method is presented that enables a non-destructive investigation of the melting behavior during the printing process. For this purpose, a 3D printer nozzle with an extruder was integrated into an X-ray computed tomography system. Thus, a computed tomography scan (CT scan) can be performed during the extrusion process. By using filaments with high absorbent tungsten, a sufficient contrast can be created between the metal nozzle and the plastic filament, which allows an analysis of the melting behavior. This setup allows to distinguish between the solid filament area and the melt area, as well as to determine contact between the filament and the nozzle wall. In this way, the simulations can be validated and nozzle geometries to be improved in the future by means of improved simulation tools.\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"8 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":"122103648","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: 1

Quality Control of Composite parts by robot guided Terahertz imaging 机器人引导太赫兹成像的复合材料零件质量控制

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28228

M. Pfleger, Peter Fosodeder, H. Sehrschön, J. Dobson, S. Cozien-Cazuc, S. van Frank, C. Rankl

引用次数: 0

Hybrid system development and application research for refrigerant leak inspection 制冷剂泄漏检测混合系统开发与应用研究

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28165

Y. Choi, Hyun-hak Song, Junpil Park, Jaesun Lee

{"title":"Hybrid system development and application research for refrigerant leak inspection","authors":"Y. Choi, Hyun-hak Song, Junpil Park, Jaesun Lee","doi":"10.58286/28165","DOIUrl":"https://doi.org/10.58286/28165","url":null,"abstract":"\u0000Recently, record-breaking heatwaves due to global warming and abnormal weather have\u0000\u0000occurred in the summer, and sales and usage of air conditioners are rapidly increasing.\u0000\u0000Air conditioners are widely used all over the world and are recently expanding to\u0000\u0000centralized management system air conditioners. There are many customers requesting\u0000\u0000repairs due to leaking air conditioner refrigerant. However, the problem of refrigerant\u0000\u0000leakage is difficult to repair because it is difficult to quickly and accurately determine\u0000\u0000whether there is leakage on site. Air conditioner refrigerant leakage occurs in various\u0000\u0000parts such as outdoor units, indoor units, and connecting pipes, and there are cases of\u0000\u0000leakage due to minute defects, making it difficult to clearly determine whether there is\u0000\u0000leakage. Research was conducted to develop a hybrid system so that immediate judgment\u0000\u0000on these issues could be made in the field. A refrigerant leak diagnosis method was\u0000\u0000studied based on an acoustic emission sensor, and a refrigerant leak diagnosis procedure\u0000\u0000and hybrid diagnosis system were developed to detect refrigerant leak signals for each air\u0000\u0000conditioner component in consideration of the characteristics of the UV gas detector and\u0000\u0000each inspection method. It is expected that field diagnosis of air conditioning systems can\u0000\u0000be effectively applied using the procedure and diagnosis system developed through this\u0000\u0000study\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"20 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":"129723334","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

Deep Learning Approach for Multi-Class Segmentation in Industrial CT-Data 工业ct数据多类分割的深度学习方法

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28077

Tim Schanz, Robin Tenscher-Philipp, Fabian Marschall, Martin Simon

引用次数: 0

A data-driven method for the correction of optical distortions of depth cameras in immersion NDT 浸入式无损检测中深度相机光学畸变校正的数据驱动方法

Research and Review Journal of Nondestructive Testing Pub Date : 2023-08-01 DOI: 10.58286/28116

Everton Trento Jr., G. Pires, G. A. Guarneri, T. Passarin, D. Pipa

{"title":"A data-driven method for the correction of optical distortions of depth cameras in immersion NDT","authors":"Everton Trento Jr., G. Pires, G. A. Guarneri, T. Passarin, D. Pipa","doi":"10.58286/28116","DOIUrl":"https://doi.org/10.58286/28116","url":null,"abstract":"\u0000Stereoscopic cameras, also known as depth cameras, are increasingly present in robotics\u0000\u0000navigation and 3D scene reconstruction. Normally, off-the-shelf depth cameras are not\u0000\u0000suited for underwater environments and exhibit considerable distortions in the provided 3D images when operating underwater. This is mainly due to the large difference\u0000\u0000in the refractive coefficients of air and water. This issue prevents their use in subsea\u0000\u0000applications such as the inspection of oil pipelines, valves and manifolds, where these\u0000\u0000devices could be used for odometry during ultrasonic inspections as well as for 3D scanning. Aiming to allow for such applications, we present a data-driven method for the\u0000\u0000correction of distortions caused by unaccounted diffractions in depth cameras. First,\u0000\u0000the distortion is modelled via a series of detections of control points from a standard\u0000\u0000target at known underwater positions, and an approximation of the inverse distortion\u0000\u0000is obtained. Then, at runtime, a procedure takes as input the (distorted) point cloud\u0000\u0000given by the camera at each frame, applies the inverse distortion, and yields a corrected\u0000\u0000point cloud. We apply the method to data provided by a RealSense D405 camera encased in a sealed acrylic container underwater. The correction makes it possible to use\u0000\u0000the camera for odometry underwater, clearing the path for the use of off-the-shelf depth\u0000\u0000cameras in a wide range of subsea applications. The method can be applied for any\u0000\u0000other transparent fluid.\u0000\u0000\u0000","PeriodicalId":383798,"journal":{"name":"Research and Review Journal of Nondestructive Testing","volume":"10 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":"128074447","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