C
Chan Ghee Koh
Researcher at National University of Singapore
Publications - 162
Citations - 4218
Chan Ghee Koh is an academic researcher from National University of Singapore. The author has contributed to research in topics: System identification & Finite element method. The author has an hindex of 34, co-authored 161 publications receiving 3650 citations. Previous affiliations of Chan Ghee Koh include Nanjing Tech University & University of Plymouth.
Papers
More filters
Journal ArticleDOI
Buckling of a stiff thin film on a compliant substrate in large deformation
Jizhou Song,Hanqing Jiang,Zhuangjian Liu,Dahl-Young Khang,Yonggang Huang,John A. Rogers,Chun Lu,Chan Ghee Koh +7 more
TL;DR: In this article, a finite deformation theory was developed to study the mechanics of thin buckled films on compliant substrates, and perturbation analysis was performed for this highly nonlinear system to obtain the analytical solution.
Journal ArticleDOI
Application of fractional derivatives to seismic analysis of base‐isolated models
Chan Ghee Koh,James M. Kelly +1 more
TL;DR: In this article, the concept of fractional derivatives is employed in the formulation of a stress-strain relationship for elastomers, and efficient numerical multi-step schemes are developed for the dynamic analysis of a single-degree-of-freedom "fractional oscillator" in the time domain.
Journal ArticleDOI
Estimation of structural parameters in time domain: A substructure approach
TL;DR: In this paper, a substructure approach is used to estimate the stiffness and damping coefficients of structures from measurement of dynamic responses, and the structures are decomposed into smaller subsystems for which state and observation equations are formulated and solved by the method of extended Kalman filter with a weighted global iteration algorithm.
Journal ArticleDOI
Impact tests on steel–concrete–steel sandwich beams with lightweight concrete core
TL;DR: In this paper, the impact performance of steel-concrete-steel (SCS) sandwich beams was investigated by dropping free weights on to sandwich beams to investigate their structural response against impact loads.
Journal ArticleDOI
Moving element method for train‐track dynamics
TL;DR: In this paper, a moving element method for the dynamic analysis of train-track systems is proposed, which discretizes the rail beam on viscoelastic foundation into elements that "flow" with the moving vehicle.