Complex components in CIVA SHM

The SHM module of CIVA 2023 enables the simulation of the monitoring by Guided Waves of more complex specimen shapes compared to what was available before, such as elbows, sleeves and components with several curved sections.

However, the “Specimen” panel in the CIVA GUI still only includes two geometries: Planar or Cylinder.

 

 

Indeed, these complex components are built from initial profiles of planar and tubular specimens.

The SHM module relies on a spectral 3D FEM method where the mesh is fully driven by the software. This mesh is first initiated from a simple geometric profile, before following the geometrical transformations applied to it in order to create the final complex geometry of the component with its adapted and structured mesh.

 

Therefore:

 

• From a planar component, it is in the “Curvature” panel that you can create specimens with irregular shapes, via the definition of a unique median profile, or through 2 different profiles applied on the upper and lower part of the plate, leading to a variable thickness.

 

 

• From a tubular component, it is also in the “Curvature” panel that you can create an elbow, generated from the initial cylinder.

 

 

• From a multilayers tubular or planar component, it is through the “Stiffener” panel that you can create a “Sleeve” on the specimen, by defining on which layer and along which length this sleeve is positioned.