Operations Research, Systems Engineering and Industrial Engineering Commons^™

Damage Detection Via Structural Model Updating Using Frequency Response Functions And Genetic Algorithms, Bassam Sabry Fawzy Elsaid

Archived Theses and Dissertations

This thesis covers the development of a model updating technique which relies on the introduction of correction factors to the elemental stiffness matrix of a beam Finite Element Model (FEM). A Genetic Algorithm selects the values of correction factors by minimizing the difference between an experimentally measured Frequency Response Function (FRF) and the FRF calculated from the FEM being updated. The model updating technique was employed as a damage detection algorithm. The first phase of damage detection is to use model updating to eliminate experimental and modeling errors between the FRF of a beam measured experimentally and the FRF of …