Damage estimation using multi objective genetic algorithms

Faisal Shabbir, Piotr Omenzetter

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

6 Downloads (Pure)


It is common to estimate structural damage severity by updating a structural model against experimental responses at different damage states. When experimental results from the healthy and damaged states are available, the updated finite element models corresponding to the two states are compared. Updating of these two models occurs sequentially and independently. However, experimental errors, updating procedure errors, modelling errors and parametric errors may propagate and become aggregated in the damaged model in this approach. In this research, a multi-objective genetic algorithm has been proposed to update both the healthy and damaged models simultaneously in an effort to improve the performance of the damage estimation procedure. Numerical simulations of a simply supported beam damaged at multiple locations with noisy mode shapes were considered and improved model updating results were confirmed. It was found that the proposed method is more efficient in accurately estimating damage severity, less sensitive to discretization as well as experimental errors, and gives the analyst an increased confidence in the model updating and damage estimation results.
Original languageEnglish
Title of host publicationProceedings of the 7th European Workshop on Structural Health Monitoring
Number of pages8
Publication statusPublished - 8 Jul 2014
EventEWSHM - 7th European Workshop on Structural Health Monitoring - Nantes, France
Duration: 8 Jul 20148 Jul 2014


ConferenceEWSHM - 7th European Workshop on Structural Health Monitoring


  • inverse problems
  • finite elements based SHM
  • estimation


Dive into the research topics of 'Damage estimation using multi objective genetic algorithms'. Together they form a unique fingerprint.

Cite this