A5052184829- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Crystallography and molecular interactions
- Non-Destructive Testing Techniques
- Concrete Corrosion and Durability
- Infrastructure Maintenance and Monitoring
- Metal and Thin Film Mechanics
- Textile materials and evaluations
- Corrosion Behavior and Inhibition
- MXene and MAX Phase Materials
- Geophysical Methods and Applications
- Welding Techniques and Residual Stresses
- High voltage insulation and dielectric phenomena
- 2D Materials and Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Petroleum Processing and Analysis
- Remote Sensing and LiDAR Applications
- Lubricants and Their Additives
- Fire effects on concrete materials
- Advanced Fiber Optic Sensors
- Innovations in Concrete and Construction Materials
- Tribology and Wear Analysis
- Conducting polymers and applications
Dalian University of Technology
2011-2025
Chongqing University
2025
Inner Mongolia University of Technology
2024
Soochow University
2023
Concrete-encased composite structure is a type of that takes the advantages both steel and concrete materials, showing improved strength, ductility, fire resistance compared to traditional reinforced structures. The interface between profiles governs interaction these two materials under loading, however, debonding damage may lead severe degradation load transferring capacity which will affect structural performance significantly. In this paper, electro-mechanical impedance (EMI) technique...
Digital twin bridges are virtual replicas of real physical entity in computers. A digital bridge the form a finite element model can help making sense structural responses monitored by structure health monitoring system. This study proposes hybrid method, which provides mean for synthesizing data and to reconstruct un-monitoring responses, developing cable-stayed bridge. The considered is orthotropic steel deck, welding residual stress an important cause fatigue cracking. submodel technology...
Waterborne epoxy resin (WEP) coatings are widely used in various fields due to their environmentally friendly properties, yet corrosion resistance and shielding properties demand further refinement. In this work, melamine-modified graphene oxide (MGO) was synthesized using surface covalent functionalization, a novel waterborne epoxy/modified coating (WEP/MGO) prepared. The optimal modification effect obtained by exploring different proportions of melamine, which led significant improvements...
Abstract Precise three‐dimensional (3D) instance segmentation of indoor scenes plays a critical role in civil engineering, including reverse size detection, and advanced structural analysis. However, existing methods often fall short accurately segmenting complex environments due to challenges diverse material textures, irregular object shapes, inadequate datasets. To address these limitations, this paper introduces StructNet3D, point cloud neural network specifically designed for components...
Stress corrosion is a major failure type of prestressed steel strands damage. Currently, no effective monitoring method exists. This paper an analysis the acoustic emission (AE) characteristic signal from stress damage to using ant colony optimization and self-organizing feature mapping. First, AE signals at different stages were obtained through experiments on strands, which can primarily present mechanism sources. Subsequently, was applied analyze corrosion. resulted in identification four...
Desirable properties of carbon fiber-reinforced plastic (CFRP) composites include their high strength, rigidity, light weight, corrosion free, and fatigue resistance. CFRP are popularly applied in bridge engineering structures, but the causes damage bridges have not been thoroughly investigated. We adopt acoustic emission (AE) technology to monitor failure cables. The relationship between AE signal characteristics cable damage, as well pattern signals during a test, is Results show that...
An accurate and reasonable finite element model is essential for bridge structural health monitoring safety assessment. To improve the accuracy efficiency of updating, this paper proposes a updating method structures based on an improved response surface method. By introducing radial basis function as augmentation term polynomial function, established, fitting global improved. The convergence speed optimization solution are by improving regression step annealing strategy in simulated...
This study identified depths of artificial pitting corrosion on the galvanized steel wires, frequently used in bridge cables, based time reversal method (TRM). Specifically, multimode longitudinal ultrasonic guided waves are excited terms characteristics radical distribution normalized average energy flow density (NAPFD) a wire. Furthermore, complex defect scattered signals difficult to interpret, which attributed multimode, multipath and dispersion, but considered enhance focused through...
This paper provides a novel and effective self-adaptive real-time clustering (SARTC) strategy for real-world large datasets real time, feature selection method (LS-MI) was proposed to enhance the efficiency. The effectiveness of methods validated by theoretical analysis experimental verification on three benchmark datasets; result shows that achieved superiorities high efficiency, accuracy, adaptive convergence. And were applied damage pattern recognition steel tube confined reinforced...
Abstract Structural health monitoring of grouted sleeves is one the assembly industry’s huge challenges. In this study, a combined two-level damage detection was introduced. It comprises defect classification (healthy, rebar eccentricity, and grout leakage) severity evaluation for early-age using guided waves. Multiple features (MF) from time-, frequency-, time-frequency domains were extracted defined according to diverse defects ages represent complex characteristics. Moreover, egret swarm...
The surface defect detection of welded rebar is an important part construction handover inspection, which mainly done manually. To improve the efficiency and objectivity this work, deep learning-based methods can be used, but defects have characteristics insignificant pixel change small areas. Therefore, paper proposes a high-frequency feature enhanced network (HFFENet) for detecting on rebar. proposed method uses autoencoder as base inserts module (HFFEM). extracts components low-level...
The importance of real-time detection cable force during stretching construction can hardly be overstated, especially in long-span space system. In this paper, a novel approach to monitor the structure health using fiber Bragg grating (FBG) sensors was elaborated and applied monitoring tensioning process suspend-cable dome Dalian Gymnasium under construction. encapsulated FBG strain were adhered anchor detect force. Calibration tests conducted prior leaving factory order get sensitivity...
Bolted joints are commonly used in civil infrastructure and mechanical assembly structures. Monitoring identifying the connection status of bolts is frontier problem structural research. The existing research mainly on looseness a single bolt. This article presents study assessing loosening/tightening health state loose bolt by using ultrasonic guided wave group joint. A bolt-tightening index was proposed for evaluating based correlation coefficient. tightening/loosening simulated changing...
PDF HTML XML Export Cite reminder Research on Lamb wave baseline free damage identification technology based beamforming DOI: 10.59238/j.pt.2016.04.007 Author: Affiliation: (Dalian University of Technology, Liaoning 116024) Clc Number: TN914.53 Fund Project: Article | Figures Metrics Reference Related Cited by Materials Comments Abstract:In this paper, a method is proposed. This uses the distributed sensor network excitation echo mode and time Window function to extract signal, then...
In conventional Lamb wave-based damage detection, estimation is generally performed using the difference between measured and baseline signals. However, it difficult to maintain consistent measurement conditions signals, likely leading large errors. This paper proposed a baseline-free detection method for locating structures. The scattering waves are extracted according their features in frequency-wavenumber spectrum locations visualized probability imaging. To reduce complications of full...