Siu-Seong Law

TL;DR: In this article, a method based on modal strain energy is presented for locating damage in a structure, which makes use of the change of modal energy in each structural element before and after the occurrence of damage.

TL;DR: In this paper, a structural damage detection method based on modal strain energy (MSE) change before and after damage is presented, and the sensitivity of the MSE with respect to a damage is derived.

TL;DR: In this article, a solution for the vertical dynamic interaction forces between a moving vehicle and the bridge deck is analytically derived and experimentally verified, where the deck is modeled as a simply supported beam with viscous damping, and the vehicle/bridge interaction force is modelled as one point or two-point loads with fixed axle spacing, moving at constant speed.

TL;DR: In this paper, a solution for the vertical dynamic interaction forces between a moving vehicle and the bridge deck is analytically derived and experimentally verified, where the deck is modelled as a simply supported beam with viscous damping, and the vehicle/bridge interaction force is modeled as one point or two-point loads with fixed axle spacing, moving at constant speed.

TL;DR: In this paper, a new method for crack identification of bridge beam structures under a moving load based on wavelet analysis is presented, where cracks are modeled through rotational springs whose compliance is evaluated using linear elastic fracture mechanics.