|Title||Direct method of damage localization for civil structures via shape comparison of dynamic response measurements|
|Publication Type||Journal Article|
|Year of Publication||2012|
|Authors||Danai K, Civjan SA, Styckiewicz MM|
|Journal||Computers & Structures|
|Keywords||Damage Detection, Damage Localization, Health Monitoring|
A method of damage localization is introduced which relies on continuous wavelet trans-formation of the structure's forced dynamic response. Continuous wavelet transforms rep-resent the shape attributes of time series and enhance their delineation in the time-scale domain. As such, they allow identification of localized shape changes of dynamic responses for signal change detection. This change detection capacity enables identifying the damage-affected responses as well as formulating the characteristic effects of individual damaged components on the modeled dynamic response. The results obtained from simulated acceleration of a nine-story building are 90% and 100% accurate with the steady-state and transient accelerations, respectively.