Electro-mechanical impedence mathod: A case study

The mechanical impedance responses are recorded for healthy and delaminated composite laminates for Configuration 1 based on same inputs as used in case of voltage response analysis. Since the elements in Configuration 1 have vertical as well as horizontal symmetry, mechanical impedance responses for a quarter portion i.e. element 1 and 2 for all the four plies are studied. In this analysis also, the delamination is assumed in one element at a time and its effect on mechanical impedance response is predicted.

Figure 28.1 presents the mechanical impedance response of a healthy ply.

Figure 28.1 Mechanical impedance for the healthy ply for Configuration 1