Finite Element Simulation of Elastic Wave Propagation in a Concrete Plate - Modeling and Damage Detection

J. Ocean Eng. Technol. 2007;21(6):26-33.

Woo Jin-Ho,Kim Jeong-Tae,Cho Hyun-Man,Na Won-Bae

Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University,Department of Ocean Engineering Pukyong National University

Keywords: Finite element simulation, Elastic wave, Damage detection

Abstract

Finite element simulation of elastic wave propagation in a concrete plate was carried out to investigate its modeling and damage detection procedures. For the numerical stability three criteria were introduced and tested. With a proper element size and time increment, two different kinds of damage scenarios (crack and deterioration) were applied to verify the feasibility of the finite element simulation. It is shown that the severities of those damages are sensitive to the received displacement signals.