The integrated health monitoring of structures (SHM for Structural Health Monitoring ) consists of instrumenting them with sensors, on a permanent basis, in order to monitor their state of health throughout their life cycle. A brand new monitoring module using guided elastic waves in composites and metals has been integrated into the latest version of Civa, the non-destructive testing software platform of Carnot CEA List.
The new simulation tools integrated into Civa make it possible to reveal the trajectory of elastic waves in structures in the absence of damage and to calculate the disturbance of these waves in the presence of defects (corrosion, holes, cracks for metals, delamination for composites). They provide invaluable help in optimizing SHM systems, for example in defining the number and location of piezoelectric sensors needed to effectively control a structure.
Another advantage: this digital tool, accessible to engineers and experts in the field, automates the implementation of a large number of simulations in just a few minutes. Civa also presents a very significant gain in terms of computation cost compared to existing methods, which is essential for carrying out large simulation campaigns, making it possible to feed learning methods or statistical studies.
With this new module, Civa offers an innovative and efficient solution for SHM and opens up important perspectives, in particular for the certification of SHM systems in the fields of aeronautics, aerospace, energy (nuclear, oil and gas ) and land transport. The module will soon be marketed by the company Extende. Later versions of the software will enrich the geometry, defect and sensor libraries and offer advanced data processing tools.
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