Integrated structural health monitoring (SHM for Structural Health Monitoring) consists in permanently instrumenting them with sensors, in order to monitor their state of health throughout their life cycle. A brand-new module for monitoring guided elastic waves in composites and metals has been integrated into the latest version of Civa, the non-destructive testing software platform developed by Carnot CEA List.
The new simulation tools integrated into Civa reveal the trajectory of elastic waves in structures in the absence of damage, and 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 is that this digital tool, accessible to engineers and experts in the field, automates the setting up of a large number of simulations in just a few minutes. Civa also offers significant savings in terms of calculation costs compared with existing methods, which is essential for running large-scale simulation campaigns to feed learning methods or statistical studies.
With this new module, Civa offers an innovative, high-performance solution for SHM and opens up major prospects, particularly for the certification of SHM systems in the aeronautics, aerospace and energy (nuclear) sectors, oil and gas) and ground transportation. The module will shortly be marketed by Extende. Subsequent versions of the software will enrich the libraries of geometries, defects and sensors, and offer advanced data processing tools.
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