A5102969883- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Non-Destructive Testing Techniques
- Geophysical Methods and Applications
- Advanced Fiber Optic Sensors
- Synthesis and properties of polymers
- Epoxy Resin Curing Processes
- Flame retardant materials and properties
- Thermography and Photoacoustic Techniques
- Acoustic Wave Resonator Technologies
- Silicone and Siloxane Chemistry
- Polymer composites and self-healing
- Polymer Nanocomposites and Properties
- Optical measurement and interference techniques
- Mechanical Behavior of Composites
- Smart Materials for Construction
- Fatigue and fracture mechanics
- Structural Engineering and Vibration Analysis
- Tribology and Wear Analysis
- Dielectric materials and actuators
- Fiber-reinforced polymer composites
- Engineering Applied Research
- Industrial Vision Systems and Defect Detection
- X-ray Spectroscopy and Fluorescence Analysis
- Vibration Control and Rheological Fluids
Dalian University of Technology
2016-2025
Jiangnan University
2024-2025
Masteel (China)
2023-2024
Dalian University
2016-2024
Tongji University
2024
Shandong Special Equipment Inspection Institute
2016
State Key Laboratory of Structural Analysis for Industrial Equipment
2016
Chinese Academy of Engineering
2016
Institute of Electrical Engineering
2016
Shanghai Institute of Technology
2016
Abstract With the rapid iteration of portable electronics and electric vehicles, developing high-capacity batteries with ultra-fast charging capability has become a holy grail. Here we report rechargeable aluminum-ion capable reaching high specific capacity 200 mAh g −1 . When liquid metal is further used to lower energy barrier from anode, fastest rate 10 4 C (duration 0.35 s reach full capacity) 500% more under high-rate conditions are achieved. Phase boundaries active anode believed...
Impact monitoring technology plays a critical role in ensuring the structural integrity and safety of thin-walled engineering structures service. This paper presents novel hybrid DoA-TDoA method for impact localization on using sensor clusters. The methodology involves placing two clusters structure to capture signals. Subsequently, narrowband Lamb wave signals at specific frequency are extracted from Continuous Wavelet Transform (CWT). Normalized Variance Sequence (NVS) approach is then...
Probability-based diagnostic imaging, as one of the damage identification methods using ultrasonic guided waves, has been attracting increasing attention by researchers in community structural health monitoring. However, probability-based imaging algorithm’s influencing parameters, including selection certain index and frequency, network sensing paths, size effective elliptical distribution area, are empirically determined. This experience dependency limits application method to identify...
Spectrum registration and spatial calibration are presented demonstrated in optical frequency domain reflectometry based sensing system for achieving a wide strain measurement range. In both dynamic static case, the feasibility of proposed method is evaluated. First, spectrum to demodulate value, which increases data acquisition rate dozens times also keep high A up 800 Hz achieved. Second, general difficulty large analyzed. The combination is, therefore, reduce mismatch segments case...
This paper reports an extensive program of forced and free vibration tests on a single circular cylinder moving mainly perpendicularly to uniform current. For both tests, two cases were investigated: one in which the was restrained in-line direction other it supported suitable springs. The cross-flow vibrational response hydrodynamic forces measured. Large variations motion frequency “lock-in” range found from tests. leads different definitions reduced velocity, namely, so-called nominal...
Debond detection is a critical technique to ensure composite structural safety. Although there are many novel sensors being developed in recent years, piezoelectric transducers (PZT) and fiber Bragg grating (FBG) have been shown as ideal for monitoring health. To utilize their merits overcome drawbacks hybrid PZT/FBG system has detect damage laminate plates. The diagnostic combines actuators which input controlled excitation the structure optic capture corresponding response. Tests carried...
To avoid direct interpretation of the complicated ultrasonic guided wave signal and effect dispersion, probability-based diagnostic imaging is proposed to identify damages for wave–based structural health monitoring. However, algorithm usually requires a relatively large number actuator–sensor paths cover monitoring area. Therefore, weight-compensated approach developed improve ability damage localization with higher precision under same sensor configuration. The compensates weight...
The nanosheet boehmite (AlOOH) was synthesized and used as reinforcing agent to toughen carbon fiber-reinforced polymers. purity, morphology, size composition of the AlOOH nanosheets were investigated by methods XRD, SEM, TEM FTIR, respectively. Interlaminar fracture toughness for mode II deformation polymers toughened varying contents at room temperature (RT, 293k) low (LT, 77k). surfaces examined SEM correlate with interlaminar properties. results indicated that pure crystalline high...
Fiber deformation measurement is crucial in the structure health monitor, which reflects stress, strain or of where fiber laid. The principle by optical phase tracking OFDR scheme described and data processing algorithm demonstrated details to receive accurate results. differential acquired making a difference between spectrum reference states. A robust unwrapping method based on density distribution proposed get whole unwrapped low-noise fiber. Additionally, decoherence caused scatter unit...
Woven fabric composite structures are applied in a wide range of industrial applications. Composite vulnerable to damage from working complex conditions and environments, which threatens the safety in-service structure. Damage detection based on Lamb waves is one most promising structural health monitoring (SHM) techniques for materials. In this paper, guided waves, lightweight deep-learning approach proposed identifying damaged regions woven structures. The designed deep neural networks...
A beam of monochromatic synchrotron x-ray incident on a silicon wafer creates rich intensity pattern behind the that reflects cross section scattering by thermally populated phonons. least-squares fit patterns based lattice dynamics calculation yields phonon dispersion relations over entire reciprocal space. This simple and efficient method is suitable for studies in essentially all materials, complements traditional neutron technique.