The paper presents a new Electronic Shearography (ES) system for Structural Health Monitoring and damage detection, where a huge step in sensitivity has been accomplished compared to earlier shearography systems. Debondings and delaminations in sandwich panels can be detected from a distance of several meters. We are able to detect changes in the surface of a few nanometers even in noisy environments. The test setup and measurement routine are fast ...
FFI has through a number of projects been engaged in the development of ship hull structural health monitoring (SHHM) systems for the Norwegian Navy. Important goals are to increase safety, reduce damage and improve the operational utilization of the ship within the design limits, and reduce cost by condition based maintenance. The development of a practical SHHM system is based on the utilization of modern fiber optic sensor technology, detailed ...
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