Discussion on Damage Detection of A 3-D Frame Structure Using Modal Strain Energy Change
نویسندگان
چکیده
A structural damage detection method based on modal strain energy change (MSEC) is applied to a 3D steel frame structure tested in the laboratory. Very limited measurement is available to be expanded to the full dimension of the FEM of the test structure. Both numerical and experimental studies are performed in this study, and the result shows that the damage locations are successfully identified, but the damage quantities can hardly be determined in the experimental study. Through the numerical investigation, the procedures for damage localization and modal expansion are modified. These modifications are proven more suitable than the original procedures by numerical studies.
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