A5034384071- Ultrasonics and Acoustic Wave Propagation
- Structural Health Monitoring Techniques
- Composite Structure Analysis and Optimization
- Vibration and Dynamic Analysis
- Structural Load-Bearing Analysis
- Structural Analysis and Optimization
- Optical measurement and interference techniques
- Non-Destructive Testing Techniques
- Concrete Corrosion and Durability
- Masonry and Concrete Structural Analysis
- Structural Behavior of Reinforced Concrete
- Seismic Performance and Analysis
- Material Properties and Applications
- Topology Optimization in Engineering
- Structural Integrity and Reliability Analysis
Hong Kong Polytechnic University
2000-2024
Nanjing University of Aeronautics and Astronautics
1998-2024
Guilin University of Electronic Technology
2023
A structural damage detection method based on modal strain energy (MSE) change before and after is presented in this paper. The localization of MSE each element briefly presented, the sensitivity with respect to a derived. not any series expansion function analytical mode shape changes stiffness matrix. Only incomplete measured shapes system matrices are required quantification approach. Results from numerical example an experiment single-bay, two-story portal steel frame structure...
A sensitivity- and statistical-based method to localize structural damage by direct use of incomplete mode shapes is presented. The an extension the multiple location assurance criterion (MDLAC), developed Messina et al. using shape instead modal frequency. This approach makes good sensitivity local damage. detection strategy sites first measured shapes, then detect site extent again natural frequencies, which have a better accuracy than shapes. plane truss structure analyzed as numerical...
A method of optimizing sensor locations and detecting damage in a structure using the collected information is presented this paper. Unlike most methods found literature, are prioritized according to their ability localize structural based on eigenvector sensitivity method. This line with requirements for localization. Only small subset total degrees-of-freedom instrumented, incomplete modes yielded from these optimized used damage. Numerical example test results show that approach effective...
An improved structural damage quantification algorithm is presented based on the elemental modal strain energy change before and after occurrence of in a structure. The includes analytical stiffness mass matrices system quantification. It reduces significantly truncation error finite-element modeling from higher modes computation, it improves convergence properties existing by Shi et al. (2000). "Structural detection change." J. Eng. Mech., 126(12), 1216–1223]. effectiveness proposed...
Existing research on structural damage detection usually requires information at every degree of freedom, and this contradicts the usual practice having a small number sensors employed over limited locations structure. A method to detect location estimate magnitude in structure down element level with incomplete noisy measured modal data is proposed. The consists three stages: expansion mode shapes, localization domain using elemental energy quotient difference, quantification based...
ABSTRACT This paper presents an experimental study of a novel high‐performance self‐centring (SC) precast segmental concrete column (PSCC) utilising shape memory alloy (SMA) bolts. The tested PSCC was constructed with four segments and had total height 1555 mm. whole assembled by connecting through bolts solely, without using any complex anchorage for posttensioned components. Four 20‐mm‐diameter SMA were used at the base, whilst other connected high‐strength steel Certain levels prestrain...