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Experimental Verification of Nondestructive Damage Detection in a Truss Structure  

Park, Soo-Yong (영산대학교 건축학부)
Choi, Sang-Hyun (한국원자력안전기술원)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.7, no.3, 2003 , pp. 147-156 More about this Journal
Abstract
In this paper, a damage detection method using mode shapes of truss structures is presented. The theory is formulated based on the changes in the modal strain energy in a truss type structures due to damage. To examine the feasibility, the theory is applied to an experimental data of a 1:6 scale model of a typical hexagonal truss structure. The experiment consists of 17 damage scenarios subjected to three different types of damage. The damage evaluation results show that the proposed method detects successfully damage in truss elements and also show that the performance of proposed method can be significantly impacted by the noise in the measurement data for small damage.
Keywords
Damage Detection; Truss Structures; Mode Shapes; Modal Strain Energy;
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