Dr. Lu Zhang Profile

Dr. Lu Zhang

at Guilin Univ of Technology

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Author

Publications (18)

Proceedings Article | 9 May 2024 Poster + Paper

Evaluating damage progress in prestressed anchor cables with artificial defects using acoustic emission technology

Lu Zhang, Yongqi Su, Jiajun Zeng, Wanxu Zhu, Hongyu Li, Tonghao Zhang

Proceedings Volume 12950, 129500V (2024) https://doi.org/10.1117/12.3009849

KEYWORDS: Acoustic emission, Seaborgium, Sensors, Plastics, Deformation, Signal detection, Material fatigue, Failure analysis, Acoustic waves, Signal processing

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Proceedings Article | 9 May 2024 Poster + Paper

The evaluation of the seismic performance of the novel modularized footbridge pier

Hongyu Li, Chenjun Wang, Shu Xia, Rende Mo, Fengyan Li, Lu Zhang, Tonghao Zhang

Proceedings Volume 12950, 129500W (2024) https://doi.org/10.1117/12.3009851

KEYWORDS: Design, Aluminum, Bridges, Alloys, Deformation, Pipes, Roads, Lutetium, Lithium, Transportation

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Proceedings Article | 9 May 2024 Poster + Paper

Neural network and ultrasonics integrated approach for identifying the geometric and spatial complexity in pipeline

Hongyu Li, Lihua Zeng, Lu Zhang, Yajun Shi, Shengfa Wu, Tonghao Zhang

Proceedings Volume 12949, 129491K (2024) https://doi.org/10.1117/12.3008624

KEYWORDS: Pipes, Neural networks, Ultrasonics, Principal component analysis, Artificial neural networks, Waveguides, Nondestructive evaluation, Inspection, Signal processing, Numerical simulations

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Proceedings Article | 9 May 2024 Poster + Paper

Characterization of tensile damage in half grouted sleeves with internal defects by acoustic emission

Lu Zhang, Jiajun Zeng, Yongze Tang, Hongyu Li, Yiwen Fan, Tonghao Zhang

Proceedings Volume 12949, 129491L (2024) https://doi.org/10.1117/12.3008628

KEYWORDS: Acoustic emission, Elasticity, Sensors, Sampling rates, Transducers, Nondestructive evaluation, Inspection, Engineering, Deformation, Cements

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Proceedings Article | 9 May 2024 Poster + Paper

The feasibility study of the real-time evaluating the total hip replacement (THR) by using acoustic emission

Lu Zhang, Liling Xie, Xiangxing Zeng, Hongyu Li, Xueting Wu, Tonghao Zhang

Proceedings Volume 12951, 129512O (2024) https://doi.org/10.1117/12.3008627

KEYWORDS: Tissues, Wave propagation, Signal attenuation, Silicon, Sensors, Skin, Simulations, Elasticity, Head, Muscles

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Proceedings Article | 28 April 2023 Presentation + Paper

A novel anti-collision strategy with integrated tensegrity for the bridge pier

Lu Zhang, Yanfang Wei, Hongyu Li, Tonghao Zhang

Proceedings Volume 12483, 1248306 (2023) https://doi.org/10.1117/12.2657620

KEYWORDS: Bridges, Deformation, Design and modelling, MATLAB, Tolerancing, Reflection, Prisms, Integration, Instrument modeling, Engineering

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Proceedings Article | 18 April 2023 Paper

The measurement of internal defect in the half-grouted sleeves by low frequency ultrasonics

Lu Zhang, Yongze Tang, Jiajun Zeng, Qizhou Liu, Hongyu Li

Proceedings Volume 12487, 124870A (2023) https://doi.org/10.1117/12.2657625

KEYWORDS: Ultrasonics, Ultrasound transducers, Transducers, Transmitters, Second harmonic generation, Receivers, Plastics, Cements, Acoustics, Reliability

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Proceedings Article | 18 April 2023 Paper

Influence of aggregate and inclusion size on ultrasonic tomography in concrete

Lu Zhang, Shangda Jia, Chong Qiao, Zishi Jiang, Hongyu Li

Proceedings Volume 12487, 1248715 (2023) https://doi.org/10.1117/12.2657623

KEYWORDS: Ultrasonics, Tomography, Acoustic tomography, Transducers, Ultrasound transducers, Transmitters, Reflection, Wave propagation, Ultrasonography, Receivers

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Proceedings Article | 18 April 2023 Presentation + Paper

Multi-scale damage detection of glass curtain wall by acoustic emission and vibrational modal analysis

Lu Zhang, Hanlei Lu, Hongyu Li

Proceedings Volume 12486, 124860O (2023) https://doi.org/10.1117/12.2657622

KEYWORDS: Glasses, Curtains, Sensors, Acoustic emission, Vibration, Ultrasonics, Modal analysis, Inspection, Silicon, Adhesives

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Proceedings Article | 18 April 2023 Presentation + Paper

Acoustic emission signatures of the high-strength concrete failure with different loading rates

Hongyu Li, Zhen Jiang, Lu Zhang, Zhenmin Fang

Proceedings Volume 12486, 124860P (2023) https://doi.org/10.1117/12.2657621

KEYWORDS: Failure analysis, Acoustic emission, Sensors, Elasticity, Reflection, Sampling rates, Deformation, Signal processing, Plastics, Nondestructive evaluation

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Proceedings Article | 18 April 2023 Presentation + Paper

The novel design of an energy dissipation device by bistability for structural bracing

Hongyu Li, Ying Zhang, Lu Zhang

Proceedings Volume 12484, 124840E (2023) https://doi.org/10.1117/12.2657618

KEYWORDS: Bistability, Metals, Metamaterials, Design and modelling, Materials properties, Earthquakes, Shape memory alloys, Elasticity, Deformation, Viscoelasticity

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Proceedings Article | 19 May 2020 Presentation + Paper

Reciprocal amplification of wave front for planar or point sources using a metamaterial lens to increase the inspection distance of pipelines

Gorkem Okudan, Hrishikesh Danawe, Lu Zhang, Serife Tol, Didem Ozevin

Proceedings Volume 11380, 113800V (2020) https://doi.org/10.1117/12.2557404

KEYWORDS: GRIN lenses, Signal attenuation, Ultrasonics, Metamaterials, Inspection, Wave propagation, Lens design, Acoustics, Sensors, Nondestructive evaluation

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Proceedings Article | 18 May 2020 Presentation + Paper

Seismic energy dissipation of periodic assembly tensegrity system

Hongyu Li, Yue Wu, Lu Zhang, Didem Ozevin

Proceedings Volume 11379, 113790N (2020) https://doi.org/10.1117/12.2557075

KEYWORDS: Prisms, Bridges, Metamaterials, Civil engineering, Structural design, Shape memory alloys, Wave propagation, Directed self assembly, Resistance, Domes

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Proceedings Article | 1 April 2019 Presentation + Paper

The identification of accurate and computationally efficient arrival time pick-up method for acoustic tomography

L. Zhang, J. Dong, V. Godinez-Azcuaga, Obdulia Ley, E. Lowenhar, H. Saboonchi, D. Ozevin

Proceedings Volume 10971, 1097114 (2019) https://doi.org/10.1117/12.2515403

KEYWORDS: Sensors, Tomography, Signal to noise ratio, Aluminum, Wave plates, Acoustics, Transmitters, Receivers, Interference (communication), Error analysis

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Proceedings Article | 1 April 2019 Presentation + Paper

Optimized spatial placement of structural bolts in connections for effective ultrasonic inspection

Gorkem Okudan, Lu Zhang, Didem Ozevin

Proceedings Volume 10971, 1097104 (2019) https://doi.org/10.1117/12.2515360

KEYWORDS: Ultrasonics, Inspection, Corrosion, Receivers, Wave plates, Reflection, Signal attenuation, Process modeling, Scattering, Interfaces

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Proceedings Article | 27 March 2018 Presentation + Paper

Real-time nondestructive monitoring of the gas tungsten arc welding (GTAW) process by combined airborne acoustic emission and non-contact ultrasonics

Lu Zhang, Alexandra-Del-Carmen Basantes-Defaz, Zeynab Abbasi, Donald Yuhas, Didem Ozevin, Ernesto Indacochea

Proceedings Volume 10599, 105991V (2018) https://doi.org/10.1117/12.2297455

KEYWORDS: Sensors, Tungsten, Transducers, Ultrasonics, Nondestructive evaluation, Acoustic emission

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Proceedings Article | 8 April 2016 Presentation + Paper

Fatigue crack growth monitoring of idealized gearbox spline component using acoustic emission

Lu Zhang, Didem Ozevin, William Hardman, Seth Kessler, Alan Timmons

Proceedings Volume 9804, 980409 (2016) https://doi.org/10.1117/12.2220163

KEYWORDS: Acoustic emission, Pattern recognition, Sensors, Signal detection, Ultrasonics, Manufacturing, Data acquisition, Nondestructive evaluation, Ferroelectric materials, Signal processing

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The spline component of gearbox structure is a non-redundant element that requires early detection of flaws for preventing catastrophic failures. The acoustic emission (AE) method is a direct way of detecting active flaws; however, the method suffers from the influence of background noise and location/sensor based pattern recognition method. It is important to identify the source mechanism and adapt it to different test conditions and sensors. In this paper, the fatigue crack growth of a notched and flattened gearbox spline component is monitored using the AE method in a laboratory environment. The test sample has the major details of the spline component on a flattened geometry. The AE data is continuously collected together with strain gauges strategically positions on the structure. The fatigue test characteristics are 4 Hz frequency and 0.1 as the ratio of minimum to maximum loading in tensile regime. It is observed that there are significant amount of continuous emissions released from the notch tip due to the formation of plastic deformation and slow crack growth. The frequency spectra of continuous emissions and burst emissions are compared to understand the difference of sudden crack growth and gradual crack growth. The predicted crack growth rate is compared with the AE data using the cumulative AE events at the notch tip. The source mechanism of sudden crack growth is obtained solving the inverse mathematical problem from output signal to input signal. The spline component of gearbox structure is a non-redundant element that requires early detection of flaws for preventing catastrophic failures. In this paper, the fatigue crack growth of a notched and flattened gearbox spline component is monitored using the AE method The AE data is continuously collected together with strain gauges. There are significant amount of continuous emissions released from the notch tip due to the formation of plastic deformation and slow crack growth. The source mechanism of sudden crack growth is obtained solving the inverse mathematical problem from output signal to input signal.

Proceedings Article | 11 April 2013 Paper

The influence of multi-mode failures in composites on the characteristics of elastic waves

Lu Zhang, Didem Ozevin

Proceedings Volume 8694, 869402 (2013) https://doi.org/10.1117/12.2009244

KEYWORDS: Composites, Acoustic emission, Wave propagation, Finite element methods, Carbon, Pattern recognition, Data modeling, Sensors, Neural networks, Integrated modeling

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Showing 5 of 18 publications

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