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学者姓名：焦敬品
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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 ：
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 ：
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 ：
在焊接热循环作用下，奥氏体不锈钢焊缝内部呈粗大柱状晶组织，且其取向在焊缝不同区域呈各向异性.针对粗大柱状晶引起的超声波散射和晶粒取向不同导致的声束偏折等问题，进行奥氏体不锈钢焊缝超声阵列检测方法研究.针对超声阵列获得全矩阵数据，发展了一种基于时间反转算子分解的超声阵列信号去噪方法.利用射线追踪法，研究了各向异性介质中超声波传播路径确定方法，并将其应用于奥氏体不锈钢焊缝超声阵列全聚焦成像的声束偏折校正.开展了奥氏体不锈钢焊缝超声阵列检测试验研究.结果表明，基于时间反转算子分解方法可以很好剔除检测信号中的散射噪声，凸显特征回波信息，可将全聚焦成像的信噪比提高10 dB，而波束偏折校正则可以提高超声...
Keyword ：
全聚焦成像 全聚焦成像 时间反转算子分解 时间反转算子分解 射线追踪 射线追踪 超声阵列 超声阵列 奥氏体不锈钢焊缝 奥氏体不锈钢焊缝
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| GB/T 7714 | 杨敬 , 吴斌 , 焦敬品 et al. 奥氏体不锈钢焊缝超声阵列检测方法 [J]. | 焊接学报 , 2022 , 43 (02) : 1-10,113 . |
| MLA | 杨敬 et al. "奥氏体不锈钢焊缝超声阵列检测方法" . | 焊接学报 43 . 02 (2022) : 1-10,113 . |
| APA | 杨敬 , 吴斌 , 焦敬品 , 王永贤 , 何存富 . 奥氏体不锈钢焊缝超声阵列检测方法 . | 焊接学报 , 2022 , 43 (02) , 1-10,113 . |
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Abstract ：
作为传统机械连接的重要补充形式,黏接结构在工业领域应用广泛.在外载及环境因素的综合作用下,黏接界面的性能会出现劣化,严重影响黏接结构的安全使用.因此,黏接界面性能检测一直是无损检测领域的热点和难点问题.线性超声技术能有效实现黏接界面中分层、脱黏等损伤的检测,但难以实现黏接界面早期劣化(如界面闭合缺陷、界面弱黏接等)的检测及定量评价,而非线性超声技术可以克服传统线性超声技术在检测灵敏度方面的不足,有望成为一种有效的黏接界面性能早期劣化的检测手段.本文从理论模型和检测实验两方面对非线性超声技术在黏接界面性能检测与评价方面的研究进展进行了综述.从界面的接触非线性和中间层的材料非线性角度出发,介绍了界...
Keyword ：
非线性超声 非线性超声 材料非线性 材料非线性 无损检测 无损检测 性能劣化 性能劣化 黏接界面 黏接界面 接触非线性 接触非线性
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| GB/T 7714 | 李立 , 焦敬品 , 高翔 et al. 黏接界面性能劣化的非线性超声检测研究进展 [J]. | 科学通报 , 2022 , 67 (07) : 621-629 . |
| MLA | 李立 et al. "黏接界面性能劣化的非线性超声检测研究进展" . | 科学通报 67 . 07 (2022) : 621-629 . |
| APA | 李立 , 焦敬品 , 高翔 , 贾召会 , 吴斌 , 何存富 . 黏接界面性能劣化的非线性超声检测研究进展 . | 科学通报 , 2022 , 67 (07) , 621-629 . |
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Abstract ：
针对金属板结构安全运行需要,开展了金属板结构疲劳损伤非线性兰姆波混频检测方法研究。通过数值仿真,研究了两列A_0兰姆波与材料损伤间的非线性相互作用。结果表明,两列共线A_0兰姆波在结构材料损伤处产生单向传播的和频S_0波,且和频波幅值随传播距离具有积累增长效应。对不同疲劳程度金属板试件进行了共线混频兰姆波检测实验,结果表明,和频波幅值随试件疲劳周数的增加呈单调递增趋势,提出的兰姆波混频技术可用于金属板结构疲劳程度的表征。研究工作为金属板结构疲劳损伤检测提供了可行的技术方案。
Keyword ：
疲劳损伤 疲劳损伤 金属板 金属板 材料损伤 材料损伤 兰姆波 兰姆波 混频技术 混频技术
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| GB/T 7714 | 焦敬品 , 李立 , 高翔 et al. 金属板疲劳损伤非线性兰姆波混频检测 [J]. | 声学学报 , 2022 , 47 (02) : 256-265 . |
| MLA | 焦敬品 et al. "金属板疲劳损伤非线性兰姆波混频检测" . | 声学学报 47 . 02 (2022) : 256-265 . |
| APA | 焦敬品 , 李立 , 高翔 , 吴斌 , 何存富 . 金属板疲劳损伤非线性兰姆波混频检测 . | 声学学报 , 2022 , 47 (02) , 256-265 . |
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Abstract ：
An ultrasonic reverse time migration imaging method, based on high-order singular value decomposition, is proposed in the study to solve the problems of low signal-to-noise ratio (SNR) and excessive artifacts in defect ultrasonic detection imaging results of materials with high noise levels. In this method, based on the 3D structural properties of the ultrasonic full-matrix capture data, higher-order singular value decomposition is directly performed with the 3D data. The method overcomes the difficulty in selecting the number of singular values in the original singular value decomposition noise-reduction algorithm and realizes the one-step noise reduction processing of all the signals. Subsequently, the reverse time migration imaging is performed in the frequency domain, and high-quality acoustic images are obtained. The effects of the number of array elements, the center frequency of the excitation signal, and the number of defects on the denoising effect of the algorithm are investigated. It was experimentally demonstrated that the method could suppress the interference of noise signals and significantly improve the imaging SNR compared with total focusing method and the reverse time migration.
Keyword ：
ultrasonic nondestructive testing ultrasonic nondestructive testing noise reduction noise reduction reverse time migration reverse time migration higher-order singular value decomposition higher-order singular value decomposition coarse-grained material coarse-grained material
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| GB/T 7714 | Zhang, Yuncheng , Gao, Xiang , Zhang, Jiawei et al. An Ultrasonic Reverse Time Migration Imaging Method Based on Higher-Order Singular Value Decomposition [J]. | SENSORS , 2022 , 22 (7) . |
| MLA | Zhang, Yuncheng et al. "An Ultrasonic Reverse Time Migration Imaging Method Based on Higher-Order Singular Value Decomposition" . | SENSORS 22 . 7 (2022) . |
| APA | Zhang, Yuncheng , Gao, Xiang , Zhang, Jiawei , Jiao, Jingpin . An Ultrasonic Reverse Time Migration Imaging Method Based on Higher-Order Singular Value Decomposition . | SENSORS , 2022 , 22 (7) . |
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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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Abstract ：
Lamb wave has become an important non-destructive measurement method due to its advantages of small attenuation, easy excitation, and simultaneous inversion of multiple parameters. According to its propagation properties, we proposed an improved particle swarm optimization method for the inversion of the thickness and elastic constants of plates in the study. Numerical simulations and validation experiments further confirmed that the Young's modulus, Poisson's ratio, and thickness of plates could be accurately obtained from the measured zero-order modal Lamb wave dispersion curves. Then, through a series of orthogonal experiments, the influences of the error sources of measurement points on inversion parameters were explored. In addition, the statistical significance of the above influences on each inversion parameter is discussed in detail. This study provides a basis for the accurate and efficient non-destructive measurements based on Lamb waves.
Keyword ：
Non-destructive testing Non-destructive testing Lamb wave Lamb wave Inverse problem Inverse problem Particle swarm optimization Particle swarm optimization
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| GB/T 7714 | Gao, Xiang , Tian, Ye , Jiao, Jingpin et al. Non-destructive measurements of thickness and elastic constants of plate structures based on Lamb waves and particle swarm optimization [J]. | MEASUREMENT , 2022 , 204 . |
| MLA | Gao, Xiang et al. "Non-destructive measurements of thickness and elastic constants of plate structures based on Lamb waves and particle swarm optimization" . | MEASUREMENT 204 (2022) . |
| APA | Gao, Xiang , Tian, Ye , Jiao, Jingpin , Li, Chenxu , Gao, Jie . Non-destructive measurements of thickness and elastic constants of plate structures based on Lamb waves and particle swarm optimization . | MEASUREMENT , 2022 , 204 . |
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Abstract ：
The magnetic hysteresis properties of ferromagnetic materials have been investigated by experimental measurement and theoretical analysis for mechanical property evaluation. A modified Jiles-Atherton (JA) model is proposed considering both the frequency and microscopic dependence of the hysteresis properties. Dynamic hysteresis experiments of ferromagnetic specimens with different hardness values were performed to measure the hysteresis loops. Microscopic measurements of the specimens were performed to obtain the grain size and dislocation density, which were introduced into the dynamic JA model to calculate the theoretical hysteresis loops. The genetic algorithm was used to inverse the basic parameters of the JA model by matching the theoretical hysteresis loops with the experimentally measured hysteresis loops. Two magnetic parameters (the coercivity and power-law coefficient) were extracted from the hysteresis loops for mechanical property evaluation of ferromagnetic materials. It was found that the proposed JA model can be used for theoretical analysis of the influence of the microstructure on the magnetic hysteresis properties, and the coercivity and power-law coefficient can be used for mechanical property evaluation of ferromagnetic specimens. The research reveals the influence of microstructure on the mechanical properties (hardness) and magnetic characteristic parameters of ferromagnetic materials.
Keyword ：
Microstructure Microstructure Jiles-Atherton model Jiles-Atherton model Magnetic hysteresis Magnetic hysteresis Ferromagnetic material Ferromagnetic material Mechanical property Mechanical property
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| GB/T 7714 | Jiao, Jingpin , Chang, Yu , Kobayashi, Satoru et al. Experimental evaluation and theoretical analysis of the mechanical properties of ferromagnetic materials using the magnetic hysteresis properties [J]. | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS , 2022 , 554 . |
| MLA | Jiao, Jingpin et al. "Experimental evaluation and theoretical analysis of the mechanical properties of ferromagnetic materials using the magnetic hysteresis properties" . | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 554 (2022) . |
| APA | Jiao, Jingpin , Chang, Yu , Kobayashi, Satoru , Liu, Xiucheng , Li, Guanghai , Bin Wu et al. Experimental evaluation and theoretical analysis of the mechanical properties of ferromagnetic materials using the magnetic hysteresis properties . | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS , 2022 , 554 . |
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