Ultrasonics最新文献

{"title":"Temperature-compensated acoustoelastic measurements of the stress in bolts","authors":"Yuqiang Han,&nbsp;Haiying Huang,&nbsp;Wenlu Cai,&nbsp;Minghai Li,&nbsp;Yongjian Mao,&nbsp;Chong Li","doi":"10.1016/j.ultras.2024.107532","DOIUrl":"10.1016/j.ultras.2024.107532","url":null,"abstract":"<div><div>Temperature is an important factor influencing the results of non-destructive acoustoelastic measurements of the internal stress in objects like bolts owing to its impact on the elastic modulus of the material. However, conventional methods that seek to obtain the temperature field of the measurement object independently suffer from high complexity and low accuracy. The present work addresses this issue by developing a method that eliminates the influence of temperature on the acoustoelastic measurements of stress in bolts based on the time interval between the head and coda waves of ultrasonic signals. The origin of coda waves in rod-shaped objects is investigated theoretically, and this understanding is applied for analyzing the relationship between the temperature and internal stress of the object and the time interval between the head and coda waves of ultrasonic signals. The analysis demonstrates that the observed time interval is related to temperature and stress in accordance with a linear relationship with the velocity of the longitudinal wave and the rod diameter. Finally, the obtained relationship is applied within an acoustoelastic measurement model to eliminate the influence of temperature from the measurement results.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"148 ","pages":"Article 107532"},"PeriodicalIF":3.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The parameter mapping of power ultrasonic transducer model.","authors":"Junfan Fu, Bin Lin, Tianyi Sui, Baokun Dong","doi":"10.1016/j.ultras.2024.107533","DOIUrl":"https://doi.org/10.1016/j.ultras.2024.107533","url":null,"abstract":"<p><p>The vibration and electrical characteristics of transducer is determined by material coefficients and geometry, with material coefficients being susceptible to factors including frequency, pressure, and temperature, which leads to poor repeatability of transducer characteristics. Consequently, it is challenging to provide an accurate theoretical model to predict the characteristics based on the current material coefficients. To achieve a more accurate transducer model, a measurement method is proposed based on the mapping between material coefficients and transducer characteristic parameters to obtain accurate coefficients under working conditions with simple equipment and lower costs. The mapping is analyzed based on the transducer model, identifying five key coefficients. An iterative optimization method is then developed to measure these coefficients. Additionally, the genetic algorithm (GA) method is utilized for cross-checking. Transducers made from seven different materials and with varying lengths are measured, and the coefficients are obtained by both methods. With the obtained coefficients, the vibration and electrical characteristics of multi-material transducers is predicted and found to be in good agreement with the measured values, validating the transducer model and the coefficient measurement method. These coefficients are then compared with results obtained from a dynamic mechanical analyzer (DMA) and reference values. The results demonstrate that theoretical coefficients obtained by the proposed method lead to more accurate predictions for the vibration and electrical characteristics compared to those obtained from the DMA and reference values. Furthermore, the influence of frequency on the coefficients is studied by the method. The iterative method and GA method are compared in terms of their relative errors.</p>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"148 ","pages":"107533"},"PeriodicalIF":3.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Twice reflected ultrasonic bulk wave for surface defect monitoring","authors":"Voon-Kean Wong ,&nbsp;Xiaotian Li ,&nbsp;Yasmin Mohamed Yousry ,&nbsp;Marilyne Philibert ,&nbsp;Chao Jiang ,&nbsp;David Boon Kiang Lim ,&nbsp;Percis Teena Christopher Subhodayam ,&nbsp;Zheng Fan ,&nbsp;Kui Yao","doi":"10.1016/j.ultras.2024.107530","DOIUrl":"10.1016/j.ultras.2024.107530","url":null,"abstract":"<div><div>This work offers an ultrasonic structural health monitoring (SHM) approach for assessing the defects located on the same surface and at one side of piezoelectric ultrasonic transducer array. It is based on the analysis of ultrasonic bulk wave travelling in the thickness direction obtained from an enhanced full-skip configuration of the time-of-flight diffraction (TOFD) technique. In contrast to existing TOFD setup only considering the direct paths between the ultrasonic transducer and defect, our ultrasound monitoring configuration involves twice reflected ultrasonic bulk wave (TRBW). The TRBW travels following the propagation route from an ultrasonic transmitter located at the same side of the defect initiated, the backwall, the defect tip, the backwall again and finally to the same or another ultrasonic transducer. Both theoretical analyses and experimental validations have been conducted in our study. A simplified algorithm for efficient detection and mapping the growth of a surface defect in an aluminum alloy block has been demonstrated with an incremental surface defect growth starting from 2.80 mm in depth, in which conformable direct-write ultrasonic transducers (DWT) made of in-situ piezoelectric coating are implemented. Our approach provides an ultrasonic method for effective monitoring the near surface defects with the ultrasonic transducers conveniently implemented on the same surface and at the same side of the defects.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107530"},"PeriodicalIF":3.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical and experimental study of echogenicity in 3D-printed tissue-mimicking materials.","authors":"Hossein Kamalinia, Merlin Bonnevay, Andrea Barbarulo, Elsa Vennat, Bing Tie","doi":"10.1016/j.ultras.2024.107518","DOIUrl":"https://doi.org/10.1016/j.ultras.2024.107518","url":null,"abstract":"<p><p>The main focus of this work is the echogenicity of a 3D-printed synthetic composite material that mimics the acoustic properties of cardiac biological tissues to provide ultrasound images similar to those obtained during interventional cardiology procedures. The 3D-printed material studied is a polymer-based composite with a matrix-inclusion microstructure, which plays a critical role in ultrasound response due to ultrasound-microstructure interaction at the involved medical echography wavelengths. Both numerical simulations and experimental observations are carried out to quantitatively establish the relationship between the 3D-printed microstructure and its ultrasonic echogenicity, considering different microstructure characteristics, namely area fraction and size of the inclusion, and its actual printed shape. A numerical evaluation based on finite element modeling is carried out to characterize the acoustic properties of the 3D-printed synthetic tissue: phase velocity, attenuation coefficient, and B-mode ultrasound images. Moreover, a morphological experimental study of the shape of the real 3D-printed inclusions is carried out. It shows a significant deviation of the final printed inclusions compared to the input spherical shape delivered to the 3D printer. By simulating and comparing numerically generated microstructures and 3D-printed real microstructures, it is shown that the actual shape of the inclusion is significant in the scattering of the ultrasonic wave and the echogenicity of the printed material.</p>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"148 ","pages":"107518"},"PeriodicalIF":3.8,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of signal processing algorithms for delamination detection in composite laminates using non-contact excited Lamb waves","authors":"Lea A.C. Lecointre ,&nbsp;Ryo Higuchi ,&nbsp;Tomohiro Yokozeki ,&nbsp;Naoki Hosoya ,&nbsp;Shin-ichi Takeda","doi":"10.1016/j.ultras.2024.107524","DOIUrl":"10.1016/j.ultras.2024.107524","url":null,"abstract":"<div><div>A novel Signal Processing algorithm based on the combination of a Wavelet Transform Analysis and Image Processing techniques is designed for assessing the delamination detectability of Lamb Waves generated with an innovative fully non-contact system in CFRP plates. Several Damage Indexes are extracted from the wavefields in spatial-time–frequency domain and plotted as surface cartographies to visualise their ability to size and localise artificial delaminations. Results show that the algorithm is efficient for characterising the waves propagation and that sophisticated Image comparison indexes show better ability to detect the artificial defects and to recognise healthy zones despite signal measurement and calculation uncertainties.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107524"},"PeriodicalIF":3.8,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical estimation of ultrasonic phase velocity and attenuation for longitudinal and shear waves in polycrystalline materials.","authors":"Vincent Dorval, Nicolas Leymarie, Alexandre Imperiale, Edouard Demaldent, Pierre-Emile Lhuillier","doi":"10.1016/j.ultras.2024.107517","DOIUrl":"https://doi.org/10.1016/j.ultras.2024.107517","url":null,"abstract":"<p><p>Finite element computations offer ways to study the behavior of ultrasonic waves in polycrystals. In particular, the simulation of plane waves propagation through small representative elementary volumes of a microstructure allows estimating velocities and scattering-induced attenuation for an effective homogeneous material. Existing works on this topic have focused mainly on longitudinal waves. The approach presented here relies on generating periodic samples of microstructures in order to accommodate both longitudinal and shear waves. After some discussion on the parametrization of the simulations and the numerical errors, results are shown for several materials. These results are compared to an established theoretical attenuation model that has been adapted to use a fully analytical expression of the two-point correlation function for the polycrystals of interest, and to use velocities corresponding to different reference media. Promising comparisons are obtained for both longitudinal and shear waves when using more representative media, obtained through Hill averaging or a self-consistent approach. This illustrates how the numerical method can assist in developing and validating analytical models for elastic wave propagation in heterogeneous media.</p>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"148 ","pages":"107517"},"PeriodicalIF":3.8,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142772659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of moisture on the diffusion of ultrasound in concrete","authors":"Eunjong Ahn ,&nbsp;Homin Song ,&nbsp;Myoungsu Shin ,&nbsp;John S. Popovics","doi":"10.1016/j.ultras.2024.107529","DOIUrl":"10.1016/j.ultras.2024.107529","url":null,"abstract":"<div><div>This study aimed to investigate the effects of internal moisture migration and subsequent drying-shrinkage-induced micro-cracking in concrete on diffuse ultrasound, through a series of experiments that comprised multiple drying and rewetting cycles carried out over the long-term. Cyclic drying and wetting phenomena in concrete were physically established following a predefined protocol and were traced measuring the mass change of specimens. Diffuse-wave tests were conducted using a pair of PZT patches bonded to cylindrical specimens, which acted as the ultrasonic transmitter and receiver in the range of 250–550 kHz. The results present that measured diffuse-wave parameters, diffusivity and dissipation, showed distinct varying and cyclic behaviors to drying and wetting processes, but they did not recover their original values in the saturated condition, revealing possible micro-cracking damage caused by the drying process, which should be understood to improve the reliability of diffuse ultrasound measurements in concrete subjected to environmental changes.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107529"},"PeriodicalIF":3.8,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Near-surface defect detection in ultrasonic testing using domain-knowledge-informed self-supervised learning","authors":"Minsu Jeon ,&nbsp;Minseok Choi ,&nbsp;Wonjae Choi ,&nbsp;Jong Moon Ha ,&nbsp;Hyunseok Oh","doi":"10.1016/j.ultras.2024.107528","DOIUrl":"10.1016/j.ultras.2024.107528","url":null,"abstract":"<div><div>Recently, significant research efforts have been made to enhance ultrasonic testing (UT) by employing artificial intelligence (AI). However, collecting an extensive amount of labeled data across various testing environments to train the AI model poses significant challenges. Moreover, conventional UT typically focuses on detecting deep-depth defects, which limits the effectiveness of such methods in detecting near-surface defects. To this end, this paper proposes a novel near-surface defect detection method for ultrasonic testing that can be employed without collecting labeled data. We propose a self-supervised anomaly detection model that incorporates domain knowledge. First, synthetic faulty samples are generated by fusing the measured UT signals with the back-wall UT reflection signals, to simulate real faulty features. Unlike the CutPaste method used for computer vision applications, this synthesis method adds the back-wall echo signal to random locations by incorporating the physical principles of the superposition of ultrasonic signals. Next, a de-anomaly network is devised to isolate subtle defect features within the measured UT signals. The presence of defects was determined using the three-sigma rule of the mean absolute value of the residual output. The defect depth is determined by a time-of-flight calculation from the residual output. The effectiveness of the proposed method was evaluated through the UT of aluminum blocks with near-surface defects of varying depths under different surface conditions. Both qualitative and quantitative comparison studies demonstrated that the proposed method outperformed existing methods in detecting the presence and depth of near-surface defects.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107528"},"PeriodicalIF":3.8,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-cycle fatigue damage evaluation based on hysteresis nonlinearity using ultrasonic guided waves","authors":"Tao Zhou,&nbsp;Chaolong Xue,&nbsp;Xunjie Lv,&nbsp;Bing Li","doi":"10.1016/j.ultras.2024.107519","DOIUrl":"10.1016/j.ultras.2024.107519","url":null,"abstract":"<div><div>This paper presents a novel approach utilizing nonlinear ultrasonic guided waves for the detection and evaluation of high-cycle fatigue damage in aluminum alloy plates. Through high-cycle fatigue testing, specimens with varying degrees of fatigue damage were created and evaluated using ultrasonic-guided wave measurement technology. The integration of time–frequency analyses effectively reduced the impact of wave dispersion and resonance effects, establishing a reliable operational frequency bandwidth. The results identified a positive correlation between the amplitude of odd harmonic components caused by hysteresis nonlinearity and fatigue crack length, while an inverse correlation was observed with specimen resonance frequency. The results confirm the high sensitivity and accuracy of this approach for early fatigue damage detection, offering a significant advancement in the non-destructive evaluation of engineering structures and a foundation for structural failure prevention.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107519"},"PeriodicalIF":3.8,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A noninvasive ultrasound vibro-elastography technique for assessing ocular lesions","authors":"Ngoc Thang Bui ,&nbsp;Lauren A. Dalvin ,&nbsp;Shannon L. Howard ,&nbsp;Jason P. Hall ,&nbsp;Arthur J. Sit ,&nbsp;Xiaoming Zhang","doi":"10.1016/j.ultras.2024.107525","DOIUrl":"10.1016/j.ultras.2024.107525","url":null,"abstract":"<div><h3>Objective</h3><div>This research aims to develop a noninvasive ultrasound vibro-elastography technique for assessing ocular lesions including intraocular melanoma and nevus lesions.</div></div><div><h3>Method</h3><div>Wave speed (WS) was noninvasively measured in the lesions at three different frequencies (i.e., 100 Hz, 150 Hz, and 200 Hz). The nearby normal tissue of choroid and sclera was also analyzed as controls. Viscoelasticity of these tissues was analyzed using the wave speed dispersion curve and the Voigt model.</div></div><div><h3>Results</h3><div>In this pilot study of 10 cases (5 melanomas vs. 5 nevus) with ages (mean ± SD) of (53.2 ± 6.82) vs. (72.2 ± 7.71) yo, the WS (m/s), elasticity (kPa) and viscosity (Pa.s) of lesion (melanoma vs. nevus) locations of the eye (i.e., WS @100 Hz: 3.63 vs. 3.09 (m/s), @150 Hz: 4.10 vs. 3.66 (m/s), @200 Hz: 4.78 vs. 4.07 (m/s); elasticity: 9.59 vs. 6.89 (kPa); viscosity: 12.46 vs. 9.26(Pa.s)) were analyzed. There were significant differences of WS ratio (WS close to the surface and WS inside the tumor) between the nevus and melanoma of all three frequencies (i.e., nevus vs. melanoma; @100 Hz: 1.59 vs. 2.95, p = 0.0285; @150 Hz: 1.58 vs. 3.53, p = 0.0054; @200 Hz: 1.70 vs. 3.31, p = 0.0124). The melanoma lesions are stiffer than the nevus lesions. It also shows that the lesion tissues are stiffer than the control tissues. However, there were no significant differences in WS, elasticity, viscosity among melanoma lesions, nevus lesions, and control tissues.</div></div><div><h3>Conclusions</h3><div>We demonstrate for the first time that noninvasive ultrasound vibro-elastography can be used for assessing ocular lesions. The results show that lesion tissues are stiffer than control tissues. They also show that melanoma lesions are stiffer than the nevus lesions. We plan to study more ocular lesion patients and improve the specificity and sensitivity of wave speed or viscoelasticity between lesions and controls.</div></div><div><h3>Significance</h3><div>Ultrasound vibro-elastography is an innovative and noninvasive technique for assessing ocular lesions.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"147 ","pages":"Article 107525"},"PeriodicalIF":3.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}