The operation and behavior of arrays of active transducers integrated with complex cast compliant structures depends on their true structural dynamics. Such structures are characteristic of sonar sytem assemblies, control elements for active optical systems, and other continuously deformable structures. Their dynamics are directly related to the mechanical and physical properties of the materials and interfaces between transducers and their supporting and radiating structures.
Such complex assemblies require sophisticated bonding and processing of compliant and rigid materials which determine their operational parameters. Understanding the effects of anomalies in cast compliant structures and their related defects is of critical importance to insuring correct operation.
A non-destructive method for the visualization of anomalous structural characteristics would be of great value in both development and testing of such systems. Knowledge of the mechanisms for energy transfer through these structures into adjoining cast compliant media can be inferred from such visualizations. Holographic interferometry has presented itself as a viable and useful method for the realization of this type of information.