Validation of an FE model updating procedure for damage assessment using a modular laboratory experiment with a reversible damage mechanism

Abstract In this work, the systematic validation of a deterministic finite element (FE) model updating procedure for damage assessment is presented using self-developed modular laboratory experiment. A fundamental, methods rarely conducted and in many experimental investigations, only one type defect introduced at position. Often, inserted irreversible inspections are performed visually. Thus, and, with it, results method considered often not entirely analyzed terms quantity quality. To address shortcoming, steel cantilever beam designed nine reversible positions option to insert different scenarios controlled manner. The measurement data made available open-access form which enables methods. demonstrate such experiment, FE previously by authors applied extended. approach uses parameterized distribution functions update stiffness properties structure considered. mathematical formulation allows an that independent mesh resolution free assumptions about location while needing few design variables. based on eigenfrequency deviations. show precise localization within $$\pm \, {0.05}{\textrm{m}}$$ ± 0.05 m correct relative quantification three With that, first, it shown suitable assessment. Second, work demonstrates opportunity introduce several distinctly defined types severities into experiment generally