Nondestructive Testing and Evaluation最新文献

{"title":"Simulations and experimentation of ultrasonic wave propagation and flaw characterisation for underwater concrete structures","authors":"Harshit Jain, V. H. Patankar","doi":"10.1080/10589759.2023.2274006","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274006","url":null,"abstract":"","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"1 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136136536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nondestructive evaluation of cooling passages and their blockage using vapor excited active thermography","authors":"Mohammad Mostafa Khalili, Mohammadreza Farahani, Pouya Faraji Kalajahi, Milad Mohammadian","doi":"10.1080/10589759.2023.2274016","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274016","url":null,"abstract":"","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136157965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distributed point source method for eddy current modelling","authors":"Pu Huang, Xiaofei Huang, Zhiying Li, Yuedong Xie","doi":"10.1080/10589759.2023.2274018","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274018","url":null,"abstract":"ABSTRACTDistributed point source method (DPSM) has been gradually applied to the field of nondestructive testing (NDT). As a semi-analytical modelling technique, DPSM is extremely powerful and straightforward for solving various engineering problems, such as ultrasonic fields and electromagnetic field. In this paper, the technique is extended to model the eddy current field including sweep frequency measurement and scanning defect. The configuration of eddy current sensors consists of excitation coil and solid-state magnetic field measurement sensors such as Hall device and giant magnetoresistive sensor. Besides that, the wave propagation has been described and magnetic field created by eddy current has been calculated. The results obtained by DPSM is compared with that calculated by finite element method (FEM) in terms of accuracy and computation time, which indicates DPSM can improve calculation speed while ensuring calculation accuracy.KEYWORDS: DPSMnondestructive testingeddy currentsweep frequency modescanning defect Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the Fundamental Research Funds for the Central Universities [KG12-1124-01]; National Natural Science Foundation of China [61901022]; Academic Excellence Foundation of BUAA for PhD Students..","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"71 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136134425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nondestructive evaluation of aircraft stealth coating by Terahertz-time domain spectroscopy: experimental and numerical investigation","authors":"Sachinlal Aroliveetil, Nithin Puthiyaveetil, Krishnan Balasubramaniam","doi":"10.1080/10589759.2023.2274002","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274002","url":null,"abstract":"ABSTRACTParticle-reinforced polymer matrix composites (PMCs) are often used as radar-absorbing materials (RAM) in aircraft stealth applications. The thickness evaluation of such multilayered coatings with micrometre-level thickness is highly challenging from single-side access. In this study, we used Terahertz Time-domain Spectroscopy (THz-TDS) in the transmission mode to extract the refractive index of the dielectric coatings for measuring the thickness using the time-of-flight method. A numerical study based on the Finite Element method (FEM) has also been developed to validate the transmission experiments. A frequency-dependent complex dielectric parameters must be considered for coatings with high absorption in the THz regime. This was addressed by performing the finite element simulations in a frequency domain. The thickness of each layer of a multi-layered coating is estimated by carrying out the experiments in reflection mode. Since the interface echoes were overlapping, a deconvolution algorithm and frequency thresholding were employed to reconstruct the signals reflected from the different interfaces. Using this technique, the thickness of each layer of coating is estimated accurately in a single measurement, which was challenging to measure using other conventional non-destructive testing (NDT) methods.KEYWORDS: Terahertz-time domain spectroscopyfinite element methodmulti-layer coatingthickness measurementterahertz pulsed imagingnon-destructive evaluation AcknowledgmentsThis study was supported by the Defense Laboratory Jodhpur, DRDO. We thank Dr Abhinandan Jain and Dr M. K. Pathra from Defense Laboratory Jodhpur, DRDO, for their continuous support throughout this project. We also want to thank Dr Sreedhar Unnikrishnakurup from the Institute of Material Research and Engineering (IMRE), A*STAR, Singapore, for providing us with the CT images and his technical inputs in the THz domain.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that supports the findings of this study are available from the corresponding authors upon reasonable request.Additional informationFundingThis work has been funded by the “Samsung-IITM Pravartak Fellowship” by Samsung India Electronics Pvt. Ltd as part of their CSR initiative.","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"12 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136161070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of impact damage in glass fibre-reinforced polymer composites using a microwave planar resonator sensor","authors":"Qi Jin, Haoyan Yu, Zhaozong Meng, Fei Fei, Zhen Li","doi":"10.1080/10589759.2023.2274003","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274003","url":null,"abstract":"ABSTRACTA novel non-destructive testing scheme was proposed for the detection of impact damage in glass fibre-reinforced polymer (GFRP) composites using a microwave planar resonator sensor. The sensor offers the advantages of small size, low cost and simple structure. It is an open-circuited λ/2 long microstrip line and the detection principle is material perturbation. Electromagnetic simulation verifies the sensor design. A GFRP specimen subjected to 5,10 and 20 J impact was examined. The 20 J impact damage was detected through line and two-dimensional scanning. The line scanning enabled accurate localisation of the damage, whereas the two-dimensional scanning facilitated more precise reconstruction of the surface damage features in addition to localisation. The sensor performance for detecting impact damage with lower energy levels was investigated by line scanning. It was found that the sensor could detect and locate 10 J impact damage. Principal component analysis was introduced to significantly reduce the false detection of the 5 J impact damage. It is well demonstrated that the proposed scheme could serve as an alternative method.KEYWORDS: Planar resonatorimpact damageGFRPmaterial perturbationresonant frequency Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was financially supported by the National Natural Science Foundation of China (Grant No. 52105552) and the Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. SJCX23_0099).","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"39 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136160879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and numerical studies on the effectiveness of high-strength steels protecting against API BZ projectiles","authors":"Cuong Phan Hoang, Dung Nguyen Van, Hoang Pham Quoc, Nhung Nguyen Thi Cam, Minh Phung Van, Thai Le Minh","doi":"10.1080/10589759.2023.2274005","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274005","url":null,"abstract":"ABSTRACTThis paper uses numerical and experimental methods to look at how well Xar450 and Perform 700 high-strength steels protect against a 7.62 × 39 mm API BZ projectile. The numerical study of the target thicknesses varies from 3 mm to 4 mm and 6 mm. And they are struck at 0°, 15°, 30°, 45°, and 60° oblique angles. Numerical simulation results show that at a normal impact angle, the bullet can break through the Perform700 targets in all thicknesses; however, the resistance performance of the target plate increases with the rise of oblique angles. The Xar450 target plates of 4 mm and 6 mm can resist the bullet at any oblique angle, but the bullet can easily penetrate 3 mm thickness from 0° to 30° oblique angles. The experiment is based on the VPAM-APR 2006 standard. The experiment results showed that the bullet perforated through the Perform700 target plate with a thickness of 3 mm at 0° and 30° oblique angles. In contrast, the bullet cannot penetrate the Xar450 target thickness of 4 mm at a normal angle. The findings of this research are used in the formulation of the design methodology for a light armoured vehicle. Besides, they have considerable importance in the realm of calculating and developing anti-fracture structures for practical applications.KEYWORDS: 7.62x39 mm API BZ projectilenumerical simulationXar450Perform700oblique angle AcknowledgementThis research is funded by Le Quy Don Technical University Research Fund under the grand number 23.1.10.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data that support the findings of this study are available from the corresponding authors upon reasonable requestAdditional informationFundingThis work was supported by the This research is funded by Le Quy Don Technical University Research Fund [23.1.10].","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"46 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136381601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On cellular automata model of traffic flow with Lennard-Jones potential","authors":"Weifan Zheng, Yang Cheng, Xiao Ma, Hao Sui, Jiye Zhang","doi":"10.1080/10589759.2023.2273521","DOIUrl":"https://doi.org/10.1080/10589759.2023.2273521","url":null,"abstract":"ABSTRACTBy introducing the Lennard-Jones potential into the interaction of vehicles, a new cellular automata model of traffic flow is proposed, in which the fixed probability of randomisation of cellular automata is replaced by the state transition probability of cell sites. The proposed model considers that the driver is affected by the interactional potential of vehicles before him/her, and the decision-making process is related to the value of the interactional potential. The model is more suitable for the driver’s random decision-making process which is based on the stochastic behaviour of traffic flow. The fundamental diagram (flow density relationship) of the proposed model is obtained, and the complex traffic phenomenon is reproduced through numerical simulation.KEYWORDS: Traffic flow modelLennard-Jones potentialcellular automata Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported in part by the National Natural Science Foundation of China under Grant 11572264, 12172308.","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"53 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136382111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automated quantification of small defects in ultrasonic phased array imaging using AWGA-gcForest algorithm","authors":"Jianjun Zhao, Kaiyue Yang, Xiaozhong Du, Shuxin Yao, Yizhen Zhao","doi":"10.1080/10589759.2023.2274001","DOIUrl":"https://doi.org/10.1080/10589759.2023.2274001","url":null,"abstract":"","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"31 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-destructive triaxial vibroacoustic modal testing with a single sound transducer: a railway sleeper case study","authors":"Ferhat Çeçen, Bekir Aktaş, Ahmet Özbayrak","doi":"10.1080/10589759.2023.2273522","DOIUrl":"https://doi.org/10.1080/10589759.2023.2273522","url":null,"abstract":"ABSTRACTVibrational experimental modal analysis (EMA) is among the most widely used modal parameter estimation techniques. However, it has several drawbacks, such as requiring accelerometer(s) mounting and using local measurements. Therefore, this study investigated whether vibroacoustic modal testing (VMT), a rarely studied method, would be a suitable alternative for EMA. In this context, a comparative case study was conducted on railway sleepers. First, modal parameter determination techniques in the literature were compared (time/frequency-domain, with/without normalisation, structural/acoustic excitation, and acoustic/vibrational response). Then, VMT and EMA test setups were reorganised considering the deficiencies identified in the literature. As a result, the difference between the VMT and EMA resonance frequency and damping ratios in the proposed mode shapes is determined as 0.06% and 3.46%, respectively. Consequently, this novel VMT setup using a single microphone that can take non-destructive, non-contact, and non-local (triaxial) measurements has been proven to provide reliable results and is recommended for future studies.KEYWORDS: Experimental modal analysisnon-destructive testingfield testingresonance frequency decrease diagnosticsdamping performance inspection AcknowledgmentsThis study was supported by the Scientific Research Projects Coordination Department of Erciyes University (Project Number: FCD-2021-11483). The authors of this study express their gratitude to ERÜ/BAP for sponsoring the project.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Bilimsel Araştırma Projeleri, Erciyes Üniversitesi [FCD-2021-11483].","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"38 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135219783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Defence algorithm against adversarial example based on local perturbation DAT-LP","authors":"Jun Tang, Yuchen Huang, Zhi Mou, Shiyu Wang, Yuanyuan Zhang, Bing Guo","doi":"10.1080/10589759.2023.2249581","DOIUrl":"https://doi.org/10.1080/10589759.2023.2249581","url":null,"abstract":"ABSTRACTWith further research into neural networks, their scope of application is becoming increasingly extensive. Among these, more neural network models are used in text classification tasks and have achieved excellent results. However, the crucial issue of derived adversarial examples has dramatically affected the stability and robustness of the neural network model. This issue confines the further expansion of the neural network application, especially in some security-sensitive tasks. Concerning the text classification task, our proposed DAT-LP (Defence with Adversarial Training Based on Local Perturbation) algorithm is designed to address the adversarial example issue, which uses local perturbation to enhance model performance based on adversarial training. Furthermore, SW-CStart (Cold-start Algorithm Based on Sliding Window) algorithm is designed to realise adversarial training in the model’s initialisation stage. The DAT-LP algorithm is evaluated by comparing with three baselines, including baseline models (BiLSTM, TextCNN), Dropout(regularisation method), and ADT (Adversarial Training method), respectively. As it turns out, DAT-LP’s performance is superior and demonstrates the best generalisation ability.KEYWORDS: DAT-LPdefence algorithmmachine learning securityrobustnessadversarial attack Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported in part by the National Natural Science Foundation of China under Grant No. 62072319; the Sichuan Science and Technology Program under Grant No. 2023YFQ0022, 2022YFG0041, 2022YFG0155 and 2022YFG0157; the Luzhou Science and Technology Innovation R&D Program under Grant No. 2022CDLZ-6.","PeriodicalId":49746,"journal":{"name":"Nondestructive Testing and Evaluation","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134910803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}