Accurate and efficient simulation of real pore geometries directly on CT images

Accurate and efficient simulation of real pore geometries directly on CT images

Johannes Fieres, Volume Graphics GmbH, Speyerer Straße 6, 69115 Heidelberg, Germany
Fabio Esposito, TEC Eurolab, Via Grieco 91, Campogalliano (MO), Italy


In cast or additively manufactured components, a certain amount of unwanted porosity is typical to the manufacturing process and cannot be avoided altogether within economically feasible limits. Therefore, the assessment of the mechanical effects of porosity by finite-element analysis (FEA) has gained strong interest. With computed X-Ray tomography (CT) it is possible to capture the full three-dimensional geometry of real porosity in high resolution without destroying the component. Simulating such realistic geometries using classical finite elements analysis (FEA) is difficult. FEA requires the creation of a geometry-conforming mesh. For pores captured by CT, this constitutes a major challenge due to the often-complex structure. In fact, the meshing process is often the limiting factor in the simulation process, sometimes leaving it impractical.

 
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