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学者姓名：焦敬品
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Abstract ：
Adhesive joints are extensive used in various industrial applications. Bonded quality is crucial for ensuring structural integrity and safety. In this study, the nonlinear non-collinear wave mixing techniques were developed to nondestructive evaluate micro imperfections in adhesive joints, including adhesive degradation and bond weakening. Two testing schemes were proposed via the resonance conditions of the adhesive and substrate respectively, following the classical nonlinearity theories. Numerical simulations and experiments of non-collinear wave mixing were conducted to explore the feasibility of the proposed testing schemes for accessing two typical micro imperfections in adhesive joints. Both the simulation and experimental results demonstrate that the proposed nonlinear non-collinear wave mixing method is effective for nondestructive evaluation of the micro imperfections in adhesive joints. Moreover, the scheme via resonance conditions of adhesive exhibits a higher sensitive to the adhesive degradation, whereas the one relying on the resonance conditions of substrate exhibits a higher sensitive to bond weakening.
Keyword ：
Adhesive joints Adhesive joints Adhesive degradation Adhesive degradation Bond weakening Bond weakening Nonlinear ultrasonic Nonlinear ultrasonic Wave mixing Wave mixing
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| GB/T 7714 | Jiao, Jingpin , Li, Zhiqiang , Li, Li et al. Nondestructive Evaluation of Adhesive Joints Using Nonlinear Non-collinear Wave Mixing Technique [J]. | JOURNAL OF NONDESTRUCTIVE EVALUATION , 2025 , 44 (1) . |
| MLA | Jiao, Jingpin et al. "Nondestructive Evaluation of Adhesive Joints Using Nonlinear Non-collinear Wave Mixing Technique" . | JOURNAL OF NONDESTRUCTIVE EVALUATION 44 . 1 (2025) . |
| APA | Jiao, Jingpin , Li, Zhiqiang , Li, Li , Li, Guanghai , Lu, Xinyuan . Nondestructive Evaluation of Adhesive Joints Using Nonlinear Non-collinear Wave Mixing Technique . | JOURNAL OF NONDESTRUCTIVE EVALUATION , 2025 , 44 (1) . |
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Abstract ：
磁声发射是评价铁磁性材料力学性能的一种重要无损检测方法,然而鲜见磁声发射理论/数值模型的报道.本文提出了一种考虑微观结构(位错密度、晶粒尺寸)的磁声发射理论模型.通过数值计算,研究了磁化结构参数和微观结构参数对磁声发射信号包络的影响.之后,重点对磁声发射理论模型的合理性进行了验证.基于不同硬度试件上测得的磁声发射信号,利用遗传算法对理论模型中的动态磁滞参数和磁化结构参数进行了反演.结果发现,在反演参数下理论模型计算得到的磁声发射信号与实验信号吻合较好,且关键磁滞参数的反演值与理论值最大误差小于15%.因此,提出的理论模型可用于磁声发射信号的预测.
Keyword ：
微观结构 微观结构 磁声发射 磁声发射 铁磁性材料 铁磁性材料 硬度 硬度 理论模型 理论模型
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| GB/T 7714 | 张红亮 , 焦敬品 , 李光海 et al. 一种考虑微观结构的磁声发射理论模型 [J]. | 仪器仪表学报 , 2024 , 45 (5) : 300-310 . |
| MLA | 张红亮 et al. "一种考虑微观结构的磁声发射理论模型" . | 仪器仪表学报 45 . 5 (2024) : 300-310 . |
| APA | 张红亮 , 焦敬品 , 李光海 , 何存富 , 吴斌 . 一种考虑微观结构的磁声发射理论模型 . | 仪器仪表学报 , 2024 , 45 (5) , 300-310 . |
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Abstract ：
The balise transmission system (BTS) is essential for train position sensing and safe operation. Transmission loss is a key parameter particularly required for the evaluation of systems. The eddy current loss (ECL), caused by the conductivity of debris, affects the transmission performance of the BTS when the balise is immersed in water. This study proposes an effective modeling for the BTS using S-parameters. Utilizing the electromagnetic coupling analysis in the near-field region, we derived an equivalent circuit with the frequency and conductivity of water taken into consideration. The S21 can be predicted accurately by using the proposed equivalent circuit. For validation, a BTS system was implemented and measured to compare with theoretically calculated results and electromagnetic simulation results in the main lobe zone. The measurement results, simulation, and calculation were in good agreement. Moreover, the modeling was used to predict the I/O characteristics of the balise. The power of the balise uplink FSK signal was measured in the water debris and found to be approximately 0.62 dB less than in air. These findings aligned well with theoretical predictions.
Keyword ：
electromagnetic coupling electromagnetic coupling S-parameters S-parameters balise transmission system balise transmission system water water equivalent circuit model equivalent circuit model
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| GB/T 7714 | Ye, Ke , Jiao, Jingpin , Xu, Qing et al. Modeling and Research on Railway Balise Transmission System for Underwater Debris [J]. | APPLIED SCIENCES-BASEL , 2024 , 14 (16) . |
| MLA | Ye, Ke et al. "Modeling and Research on Railway Balise Transmission System for Underwater Debris" . | APPLIED SCIENCES-BASEL 14 . 16 (2024) . |
| APA | Ye, Ke , Jiao, Jingpin , Xu, Qing , Chen, Fanghua , Zhu, Linfu . Modeling and Research on Railway Balise Transmission System for Underwater Debris . | APPLIED SCIENCES-BASEL , 2024 , 14 (16) . |
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Abstract ：
Non-contact ultrasonic testing of debonding in honeycomb sandwich structure has been a major challenge in industry. In this study, the air-coupled local defect resonance (LDR) technique with coda wave analysis is proposed for nondestructive testing (NDT) of debonding in honeycomb sandwich structure. Numerical simulations have been conducted to visualize the LDR behavior of debonding in honeycomb sandwich structure by air- coupled excitations, and a decorrelation analysis method is proposed for determining the interval of coda wave from received signals. Results indicate that the start moment of coda wave should be determined as the time corresponding to decorrelation coefficient exceed to 0.2 and the duration is 2.5 ms. Air-coupled LDR scanning experiments were conducted on the honeycomb sandwich specimens with different deboning. Experimental results indicate that the proposed technique is effective for NDT of the debonding in honeycomb sandwich structures. The research provides an efficiency non-contact ultrasonic NDT method for honeycomb sandwich structure.
Keyword ：
Numerical simulation Numerical simulation Honeycomb sandwich structure Honeycomb sandwich structure Local defect resonance Local defect resonance Coda wave Coda wave Air-coupled ultrasound Air-coupled ultrasound
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| GB/T 7714 | Li, Zhiqiang , Jiao, Jingpin , Li, Li et al. Numerical and experimental investigation on debonding detection in honeycomb sandwich using air-coupled local defect resonance and coda wave analysis [J]. | ULTRASONICS , 2024 , 144 . |
| MLA | Li, Zhiqiang et al. "Numerical and experimental investigation on debonding detection in honeycomb sandwich using air-coupled local defect resonance and coda wave analysis" . | ULTRASONICS 144 (2024) . |
| APA | Li, Zhiqiang , Jiao, Jingpin , Li, Li , He, Cunfu , Wu, Bin . Numerical and experimental investigation on debonding detection in honeycomb sandwich using air-coupled local defect resonance and coda wave analysis . | ULTRASONICS , 2024 , 144 . |
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Abstract ：
Nondestructive estimation of residual stresses has been a major challenge in engineering. Herein, the collinear Lamb wave mixing method is proposed for residual stress measurement in metal plates under immersion ultrasonic testing. Numerical simulations have been conducted to investigate the influences of excitation parameters on the performance of the wave mixing method. The results showed that the receiver position and cycle numbers of primary waves affect the amplitude of the method, and optimal excitation parameters recommended. Ultrasonic immersion experiments are conducted on two types of plate-like specimens using the collinear Lamb wave mixing method. Experimental results showed that the proposed method is effective for measuring the residual stress in metal plates. The immersion ultrasonic testing can significantly reduce the influence of inconsistent coupling conditions between the transmitters and the specimen on experimental results, therefore it is more reliable than conventional contact testing.
Keyword ：
Collinear wave mixing Collinear wave mixing Residual stress Residual stress Immersion ultrasonic testing Immersion ultrasonic testing Counter -propagating wave mixing Counter -propagating wave mixing One-way wave mixing One-way wave mixing
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| GB/T 7714 | Jiao, Jingpin , Li, Lintong , Zhang, He et al. Ultrasonic immersion testing of residual stress in plates using collinear Lamb wave mixing technique [J]. | NDT & E INTERNATIONAL , 2024 , 146 . |
| MLA | Jiao, Jingpin et al. "Ultrasonic immersion testing of residual stress in plates using collinear Lamb wave mixing technique" . | NDT & E INTERNATIONAL 146 (2024) . |
| APA | Jiao, Jingpin , Li, Lintong , Zhang, He , Lv, Hongtao , Wu, Bin , He, Cunfu . Ultrasonic immersion testing of residual stress in plates using collinear Lamb wave mixing technique . | NDT & E INTERNATIONAL , 2024 , 146 . |
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Abstract ：
Time-frequency analysis methods is an effective tool to analyze non-stationary signals. Moreover, the utilization of postprocessing algorithms significantly enhances this analytical capability. However, these methods have certain limitations when dealing with non-stationary signals with strong time-varying laws. We put forward an adaptive linear chirplet synchroextracting transform (ALCSET) based on chirplet transform (CT) to deal with this problem. This paper first optimizes the CT by measuring Gini index to generate a time -frequency representation with accurate amplitude. Then, an improved synchroextracting operator is employed to obtain high-resolution and energy concentration time -frequency representation. The simulation experiments of nonstationary signals demonstrate that the significant advantages of the proposed method in terms of energy aggregation, noise robustness, and signal reconstruction. Furthermore, the practical value of the method is verified by the experimental signal.
Keyword ：
Non -stationary signals Non -stationary signals transform transform Chirplet transform Chirplet transform Adaptive linear chirplet synchroextracting Adaptive linear chirplet synchroextracting Time -frequency analysis Time -frequency analysis
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| GB/T 7714 | Yan, Zhu , Jiao, Jingpin , Xu, Yonggang . Adaptive linear chirplet synchroextracting transform for time-frequency feature extraction of non-stationary signals [J]. | MECHANICAL SYSTEMS AND SIGNAL PROCESSING , 2024 , 220 . |
| MLA | Yan, Zhu et al. "Adaptive linear chirplet synchroextracting transform for time-frequency feature extraction of non-stationary signals" . | MECHANICAL SYSTEMS AND SIGNAL PROCESSING 220 (2024) . |
| APA | Yan, Zhu , Jiao, Jingpin , Xu, Yonggang . Adaptive linear chirplet synchroextracting transform for time-frequency feature extraction of non-stationary signals . | MECHANICAL SYSTEMS AND SIGNAL PROCESSING , 2024 , 220 . |
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Abstract ：
Magnetoacoustic emission (MAE) holds great promise for evaluating the mechanical properties of ferromagnetic materials. To refine the problems of the current theoretical and numerical models of MAE, a theoretical MAE model that considers the microscopic dependence of the hysteresis properties is proposed in this paper. The microstructure (dislocation density and grain size) and the correlation of MAE jumps are considered and incorporated into the model. Then, the influences of magnetization parameters and microstructure parameters on the envelope of the MAE signal are analyzed by the proposed theoretical model. The proposed theoretical model is then fully evaluated by simulations and experiments. The MAE experiments are conducted on ferromagnetic specimens with different hardnesses, and the MAE signals with different hardnesses are simulated by inverting the basic parameters of the MAE model with the genetic algorithm. Further, the crucial hysteresis parameters of the specimens are calculated using the results of microscopic measurements and the calculated parameters agree well with inversion results from experimental signals. The results demonstrate that the proposed theoretical model is valid for the MAE signal simulation. The trends of different hardnesses can be predicted by the MAE simulation signals. Moreover, the model can be used for theoretical analysis of the microscopic dependence of the MAE signal.
Keyword ：
ferromagnetic material ferromagnetic material microstructure microstructure theoretical model theoretical model magnetoacoustic emission magnetoacoustic emission
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| GB/T 7714 | Zhang, Hongliang , Jiao, Jingpin , Wu, Bin et al. Theoretical model of magnetoacoustic emission considering the microstructure of ferromagnetic material [J]. | MEASUREMENT SCIENCE AND TECHNOLOGY , 2023 , 34 (12) . |
| MLA | Zhang, Hongliang et al. "Theoretical model of magnetoacoustic emission considering the microstructure of ferromagnetic material" . | MEASUREMENT SCIENCE AND TECHNOLOGY 34 . 12 (2023) . |
| APA | Zhang, Hongliang , Jiao, Jingpin , Wu, Bin , He, Cunfu . Theoretical model of magnetoacoustic emission considering the microstructure of ferromagnetic material . | MEASUREMENT SCIENCE AND TECHNOLOGY , 2023 , 34 (12) . |
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Abstract ：
Ultrasonic testing of coarse-grained materials is strongly influenced by high-level scattering noise. In addition, the signal-to-noise ratio (SNR) and spatial resolution of imaging by the traditional total focusing method (TFM) are relatively low. In this study, we focused on the reconstruction of high-resolution ultrasonic images from full matrix capture datasets. A weighted TFM image by combining the inverse problem-based method and traditional TFM is proposed to detect defects in coarse-grained steel. The proposed method was used to image defects with the full matrix data obtained through simulations and experiments. The simulation and experimental results show that the weighted total focusing method can significantly improve the SNR of ultrasonic imaging in coarse-grained steel and, moreover, it can improve the resolution of imaging and distinguish adjacent defects with a centre distance less than the Rayleigh criteria.
Keyword ：
full matrix capture full matrix capture Rayleigh criteria Rayleigh criteria ultrasonic array ultrasonic array weighted total focusing method weighted total focusing method coarse-grained steel coarse-grained steel
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| GB/T 7714 | Zhang, Jiawei , Jiao, Jingpin , Gao, Xiang et al. High-resolution ultrasonic imaging of the defects in coarse-grained steel by a weighted total focusing method [J]. | INSIGHT , 2023 , 65 (1) : 19-27 . |
| MLA | Zhang, Jiawei et al. "High-resolution ultrasonic imaging of the defects in coarse-grained steel by a weighted total focusing method" . | INSIGHT 65 . 1 (2023) : 19-27 . |
| APA | Zhang, Jiawei , Jiao, Jingpin , Gao, Xiang , Wu, Bin , He, Cunfu , Chen, Changhua . High-resolution ultrasonic imaging of the defects in coarse-grained steel by a weighted total focusing method . | INSIGHT , 2023 , 65 (1) , 19-27 . |
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Abstract ：
Harmonic nonlinear ultrasound can offer high sensitivity for residual stress measurements; however, it cannot be used for local stress measurements at a point in space and exhibits nonlinear distortions in the experimental system. This paper presents a feasibility study on the measurement of residual stress in a metal plate using a nonlinear Lamb wave-mixing technique. The resonant conditions for two Lamb waves to generate a mixing frequency wave are obtained via theoretical analysis. Finite element simulations are performed to investigate the nonlinear interactions between the two Lamb waves. Results show that two incident A0 waves interact in regions of material nonlinearity and generate a rightward S0 wave at the sum frequency. Residual stress measurement experiments are conducted on steel plate specimens using the collinear Lamb wave-mixing technique. By setting different delays for two transmitters, the generated sum-frequency component at different spatial locations is measured. Experimental results show that the spatial distribution of the amplitude of the sum-frequency component agrees well with the spatial distribution of the residual stress measured using X-rays. The proposed collinear Lamb wave-mixing method is effective for measuring the distribution of residual stress in metal plates.
Keyword ：
Resonant conditions Resonant conditions Nondestructive testing Nondestructive testing Lamb wave Lamb wave Residual stress Residual stress Collinear wave mixing Collinear wave mixing
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| GB/T 7714 | Jiao, Jingpin , Li, Li , Gao, Xiang et al. Application of Nonlinear Lamb Wave Mixing Method for Residual Stress Measurement in Metal Plate [J]. | CHINESE JOURNAL OF MECHANICAL ENGINEERING , 2023 , 36 (1) . |
| MLA | Jiao, Jingpin et al. "Application of Nonlinear Lamb Wave Mixing Method for Residual Stress Measurement in Metal Plate" . | CHINESE JOURNAL OF MECHANICAL ENGINEERING 36 . 1 (2023) . |
| APA | Jiao, Jingpin , Li, Li , Gao, Xiang , Cheng, Quan , He, Cunfu , Wu, Bin . Application of Nonlinear Lamb Wave Mixing Method for Residual Stress Measurement in Metal Plate . | CHINESE JOURNAL OF MECHANICAL ENGINEERING , 2023 , 36 (1) . |
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Abstract ：
As an important complement to traditional mechanical connections, bonded structures are widely used in industry. Under the combined effect of external loads and environmental factors, the performance of the bonding interface will deteriorate, which seriously affects the safe use of bonding structures. Therefore, the performance evaluation of bonding interfaces has always been a hot and difficult issue in the field of non-destructive testing. Traditional linear ultrasonic technology can effectively detect damage such as delamination and debonding in the bonding interface, but it is difficult to detect and quantitatively evaluate the early degradation of the bonding interface (such as closed defects and weak bonding). However, the nonlinear ultrasonic technology can overcome the low sensitivity of the traditional linear ultrasonic technology and is expected to be an effective means for nondestructive testing of early deterioration of bonding interface performance. In this paper, we review the recent development of nonlinear ultrasonic technology for bonding interface detection from theoretical models and testing experiments. From the perspectives of contact nonlinearity of the interface and material nonlinearity of the interlayer, we introduce relevant theoretical models for nonlinear ultrasonic inspection of bonded interfaces, such as nonlinear spring model, interface contact model and contact model considering the thickness of the interlayer. These models can be used for the description of various acoustic nonlinear effects (such as second harmonic generation, wave mixing and nonlinear resonance) generated by ultrasonic waves at weak bonding interfaces, but the ability of different models to characterize the nonlinear propagation behavior of ultrasonic waves at weak bonding interfaces needs to be further investigated. Meanwhile, we review the progress of three nonlinear techniques of nonlinear ultrasonic resonance, wave mixing and second harmonic generation in the experimental testing of bonding interface properties. The nondestructive testing of bonding interface using nonlinear ultrasonic resonance technique remains relatively limited. Mixing technology is of great interest because of its flexibility and selectability of excitation frequency, mode and area of action, and its ability to effectively avoid the effects of system nonlinearity. Among the nonlinear ultrasonic methods, harmonic techniques are the most widely used, and have been used for damage detection and performance evaluation of bonding interfaces, such as bonding thickness measurement, debonding detection, bond strength and fatigue life evaluation. The harmonic technique is considered as a possible solution for the quantitative detection of the interface properties of multilayer bonded structures. However, how to distinguish the harmonics generated by weakly bonded interfaces from those generated by detection systems has been a challenge for its application. Finally, we provide an outlook for the development of nonlinear ultrasonic detection technology for early degradation of bonding interfaces.
Keyword ：
contact nonlinearity contact nonlinearity bonding interface bonding interface material nonlinearity material nonlinearity nondestructive testing nondestructive testing performance degradation performance degradation nonlinear ultrasonic waves nonlinear ultrasonic waves
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| GB/T 7714 | Li, Li , Jiao, Jingpin , Gao, Xiang et al. A review on nondestructive testing of bonding interface using nonlinear ultrasonic technique [J]. | CHINESE SCIENCE BULLETIN-CHINESE , 2022 , 67 (7) : 621-629 . |
| MLA | Li, Li et al. "A review on nondestructive testing of bonding interface using nonlinear ultrasonic technique" . | CHINESE SCIENCE BULLETIN-CHINESE 67 . 7 (2022) : 621-629 . |
| APA | Li, Li , Jiao, Jingpin , Gao, Xiang , Jia, Zhaohui , Wu, Bin , He, Cunfu . A review on nondestructive testing of bonding interface using nonlinear ultrasonic technique . | CHINESE SCIENCE BULLETIN-CHINESE , 2022 , 67 (7) , 621-629 . |
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