Figures & data
Figure 1. A simply supported beam with cracks (1, 8, 21: Nodes of the finite element).
Figure 2. Variation of flexural rigidity of a crack in ith finite element.
Figure 3. Different arrangement of a crack in the ith beam element.
Table 1. Crack identification for the cantilever beam by different methods.
Table 2. Identification of single crack in a simply supported beam.
Table 3. Effect of different external excitations.
Figure 4. Effect of different external excitations on the identification results.
Table 4. Effect of division of the homotopy parameter.
Figure 5. Effect of division of the homotopy parameter on the identification results.
Table 5. Effect of measurement noise on single crack identification.
Table 6. Crack identification using displacement measurement.
Table 7. Identification of two cracks in a simply supported beam.
Figure 6. A continuous beam with cracks.
Note. 1, 11, 26, 33 and 51 denote the nodes of the finite element model.
