Damage detection of damaged beam by constrained displacement curvature |
| |
Authors: | Eun-Taik Lee Hee-Chang Eun |
| |
Affiliation: | (1) Department of Architectural Engineering, Chung-Ang University, Seoul, Korea;(2) Department of Architectural Engineering, Kangwon National University, Chuncheon, Korea |
| |
Abstract: | Structural damage detection technique involves the problem of how to locate and detect damage that occurs in a structure by
using the observed changes of its dynamic and static characteristics. The objective of this study is to present an analytical
method for damage detection by utilizing displacement curvature and all static deflection data to be expanded from the measured
deflection data. Utilizing the measured displacements as displacement constraints to describe a damaged beam, minimizing the
change of the displacement vector between undamaged and damaged states, and neglecting the variation between the test data
and the analytical results, the deflection shape and displacement curvature of the damaged beam can be estimated, and the
damage can be detected by the curvature. The validity and effectiveness of the proposed method are illustrated through comparison
with the experimental results of a simple cantilever beam test. |
| |
Keywords: | Damage detection Displacement curvature Constraint Data expansion Incomplete data |
本文献已被 SpringerLink 等数据库收录! |
|