A5008477356- Non-Destructive Testing Techniques
- Ultrasonics and Acoustic Wave Propagation
- Welding Techniques and Residual Stresses
- Geophysical Methods and Applications
- Indoor and Outdoor Localization Technologies
- Mechanical Behavior of Composites
- Seismic Waves and Analysis
- Concrete Corrosion and Durability
- Advanced Sensor Technologies Research
- Water Systems and Optimization
- Structural Health Monitoring Techniques
- Geophysical and Geoelectrical Methods
- Epoxy Resin Curing Processes
- Magnetic Field Sensors Techniques
Michigan State University
2021-2024
Shanghai University
2024
Tsinghua University
2017-2019
Nondestructive testing (NDT) methods are widely used in the rail industry to detect rolling contact damage (RCD) defects ensure railway safety. With need of monitoring millions miles tracks more effectively and efficiently that leads improved safety, reliability, optimized assets management, research on high-speed high-accuracy NDT can obtain high signal-to-noise ratio (SNR) sensitivity defect signals at higher speeds is vital importance. Magnetic flux leakage (MFL) one for inspection, which...
Nondestructive testing (NDT) methods are widely used in the rail industry to detect and characterize rolling contact fatigue (RCF) defects railroads, which is very important for railway inspection maintenance prevent catastrophic accidents. Existing NDT methods, e.g., ultrasonic (UT), magnetic flux leakage (MFL), eddy current (ECT) have been successfully applied industry, state-of-the-art UT method reported recently achieved a high speed of 40 mi/h with probability detection (POD) over 80%...
The testing and evaluation of adhesive bonding quality between thermoplastics are crucial for structural integrity. This article presents the use phased array ultrasonic (PAUT) method to characterise interface thermoplastic composites. Samples with three different bond conditions: control, bad mid-level were fabricated tested using PAUT. A damage index (DI) based classification framework aided by machine learning (ML) algorithm is proposed classify adhesion conditions. set 18 physics-based...
The magnetic flux leakage (MFL) inspection technology is widely used in pipeline industry to detect defects ensure safety. During the high-speed inspection, a relative motion occurred between gauge (PIG) and steel pipe wall will generate motion-induced eddy current (MIEC). There lack of research on analyzing effect MIEC MFL for thick-wall pipe. In this article, three-dimensional (3D) finite-element method (FEM) simulations are conducted with an speed range 0 m/s 8 thickness mm 15 mm....
Real-time tracking of pipeline inspection gauges (PIGs) is an important aspect ensuring the safety oil and gas inline inspections (ILIs). Transmitting receiving extremely low frequency (ELF) magnetic signals one preferred methods tracking. Due to increase in physical parameters including transportation speed, wall thickness burial depth, ELF received are short transient (1-second duration) very weak (10 pT), making existing above-ground-marker (AGM) systems difficult operate correctly. Based...
High-speed inspection of defects on thick-wall steel pipes is important to pipeline inline (ILI) in the oil and gas industry. Traditional methods are limited by main challenges principle, sensor design instrument implementation, resulting these hardly applicable practical high-speed ILI. This paper proposes a novel method fusing pulsed eddy current (PEC) magnetic flux leakage (MFL) detect sub-surface defects. When ferromagnetic magnetized an applied strong DC field saturation status,...
Real-time detection of transient weak magnetic signals is a common problem in many areas, such as tracking in-pipe robots by the transmitting and receiving extremely low frequency (ELF) signals, which critical issue related to safety pipelines attracts special attention. Owing limit power interruption open air well mobility robot, received ELF are relatively transient, even 10 pico-tesla, SNR -3 dB. In this paper, novel signal method proposed based on orthogonal search coil sensors. First,...
Ferromagnetic materials are widely used in infrastructure, such as steam generators, storage tanks, and gas pipelines. During their service time, ferromagnetic subject to deterioration defects prone generate which could damage infrastructures cause catastrophic accidents. Magnetic flux leakage (MFL) is one of the nondestructive evaluation (NDE) methods detect characterize ensure infrastructure safety. However, many research works have been carried out on modeling, classification,...
As many casualty incidents have been reported, gas-sewer pipe cross bore is recognized as a high-level risk and an increasing focus of the natural gas industry public. The sewer camera primary detection tool for currently. However, it limited by access to blocked water-filled pipes. Thus, there urgent need developing efficient safe sensing system, which not constrained challenging real field environment, detect bores prevent related incidents. A novel real-time multi-channel capacitive...