A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damage Localization and Quantification from the Image of Changes in Flexibility
An approach to interrogate changes in flexibility regarding the severity of damage is presented. The approach is built on two results. The first shows that the influence lines of stress resultants at damage locations are a basis for the difference in the displacement field between the damaged and reference states for arbitrary loading. The second result shows that the coefficients that combine the basis are the magnitudes of discontinuities in the differential displacement field at the damage locations. The approach quantifies the damage severity by finding changes in sectional stiffness that justify, over reasonable smearing distances, the computed discontinuities. It is shown that at damage locations where the relevant stress resultant is statically determinate the solution is in closed form, while in the indeterminate case it is the fixed point of a nonlinear function.
Damage Localization and Quantification from the Image of Changes in Flexibility
An approach to interrogate changes in flexibility regarding the severity of damage is presented. The approach is built on two results. The first shows that the influence lines of stress resultants at damage locations are a basis for the difference in the displacement field between the damaged and reference states for arbitrary loading. The second result shows that the coefficients that combine the basis are the magnitudes of discontinuities in the differential displacement field at the damage locations. The approach quantifies the damage severity by finding changes in sectional stiffness that justify, over reasonable smearing distances, the computed discontinuities. It is shown that at damage locations where the relevant stress resultant is statically determinate the solution is in closed form, while in the indeterminate case it is the fixed point of a nonlinear function.
Damage Localization and Quantification from the Image of Changes in Flexibility
Bernal, Dionisio (author)
Journal of Engineering Mechanics ; 140 ; 279-286
2013-02-28
82014-01-01 pages
Article (Journal)
Electronic Resource
Unknown
A local flexibility method for vibration-based damage localization and quantification
| Tema Archive | 2010
Damage localization under ambient vibration using changes in flexibility
| Online Contents | 2002
Flexibility-Based Damage Localization from Stochastic Realization Results
| Online Contents | 2006
A Flexibility based Approach for Damage Localization
| British Library Conference Proceedings | 2003
Flexibility-Based Damage Localization Employing Ambient Vibration
| British Library Conference Proceedings | 2003