A method to improve the Finite Element Model and to identify structure failures utilizing measured dynamic characteristics is suggested.
The improving and failure detecting procedures were applied on a sample structure in order to verify the usefulness of the method.
And it is found that ; 1) the Finite Element Model can be improved with experimentally obtained dynamic characteristics satisfactorily and 2) the test results are also very helpful to search failures of the sample structure via plotting the error matrix [E], Also it is proved that the weighted error matrix is very effective to detect even when the failures are very small.
