A5028433626- Structural Health Monitoring Techniques
- Ultrasonics and Acoustic Wave Propagation
- Probabilistic and Robust Engineering Design
- Composite Structure Analysis and Optimization
- Aeroelasticity and Vibration Control
- Non-Destructive Testing Techniques
- Concrete Corrosion and Durability
- Structural Response to Dynamic Loads
- Structural Analysis and Optimization
- Structural Behavior of Reinforced Concrete
- Advanced Fiber Optic Sensors
- Seismic Performance and Analysis
- High-Velocity Impact and Material Behavior
- Geotechnical Engineering and Analysis
- Innovative concrete reinforcement materials
- Acoustic Wave Phenomena Research
- Structural Integrity and Reliability Analysis
- Geotechnical Engineering and Underground Structures
- Vibration and Dynamic Analysis
- Fault Detection and Control Systems
- Wind and Air Flow Studies
- Wave and Wind Energy Systems
- Landslides and related hazards
- Structural Load-Bearing Analysis
- Fatigue and fracture mechanics
National University of Singapore
2015-2025
Fujian Medical University
2025
Technology Centre for Offshore and Marine, Singapore
2023
Shenzhen Stock Exchange
2021
University of Manchester
2002-2015
University of Sharjah
2007
Institute of Chemical Engineering
2006
University of Plymouth
2006
Institute of Microelectronics
2005
University of Bath
2004-2005
Abstract A random process can be represented as a series expansion involving complete set of deterministic functions with corresponding coefficients. Karhunen–Loeve (K–L) is based on the eigen‐decomposition covariance function. Its applicability simulation tool for both stationary and non‐stationary Gaussian processes examined numerically in this paper. The study five common models. convergence accuracy K–L are investigated by comparing second‐order statistics simulated that target process....
The characteristics of engineered cementitious composites (ECCs) subjected to dynamic tensile loading and high-velocity projectile impact have been investigated are reported in this paper. Hybrid-fiber ECC containing a combination high-modulus steel fibers relatively low modulus polyethylene was adopted achieve desired balance between the ultimate strength strain capacity material required for impact- blast-resistant structures. Dynamic uniaxial tests at varying rates 2×10−6to0.2s−1 were...
In this paper, a comprehensive methodology for locating and determining the extent of linear cracks in homogeneous plates based on time-of-flight analysis Lamb wave propagation is proposed. Piezoelectric sensors actuators (PZTs) placed square grid configuration are used to excite receive direct reflected waves. The actuation frequency, spacing PZTs length signal analyze first determined. sweep across plate identify location crack, if there one. Elliptical loci possible crack positions...
Stationarity or statistical homogeneity is an important prerequisite for subsequent analysis on a given section of soil profile to be valid. The estimation statistics such as the variance likely biased if not properly demarcated into stationary sections. Existing classical tests are inadequate even simple identification stationarity in because spatial variations properties generally correlated with each other. In this paper, modified Bartlett test proposed provide more rational basis...
This paper deals with the vibration analysis of a circular plate surface bonded by two piezoelectric layers, based on Kirchhoff model. The form electric potential field in layer is assumed such that Maxwell static electricity equation satisfied. validation theoretical model done comparing resonant frequencies coupled obtained and those finite-element analysis. mode shape from free generally shown to be non-uniform radial direction contrast what commonly assumed. have an effect host...
Direct measurement of the soil-water characteristic curve (SWCC) is costly and time consuming. A first-order estimate from statistical generalization experimental data belonging to soils with similar textural structural properties useful. simple approach fit a nonlinear function construct an appropriate probability model curve-fitting parameters. This illustrated using sandy clay loam, loamy sand, clay, silty in Unsaturated Soil Database. paper demonstrates that lognormal random vector...
Accurate and efficient parameter identification along with uncertainty quantification in nonlinear systems is crucial for enabling practical reliable structural health monitoring digital twinning. This paper presents a novel procedure estimating parameters that combines Bayesian filters truncated probability density functions (PDFs). To simplify the state-space equations, only model are incorporated state whereas measurement equations implicitly considered vector of displacement velocity....
This paper illustrates the feasibility of Hilbert–Huang transform (HHT) as a signal processing tool for locating an anomaly, in form crack, delamination, stiffness loss or boundary beams and plate, based on physically acquired propagating wave signals. The basis detection hinges simple propagation concepts using flight times, velocities frequency changes. basic concept HHT is first presented where empirical mode decomposition must be applied sifting process to obtain intrinsic functions...