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Mimics FEA/CFD

The quickest link between scanner images and FEA/CFD

Fig. 1: Von Mises stress distribution on human foot

The Mimics FEA/CFD module provides the perfect link between your image data and finite element analysis (FEA) or computational fluid dynamics (CFD). It enables you to prepare images for realistic FEA/CFD in no time. Once you’ve converted all the scanned images into an accurate 3D model in Mimics, the module allows you to optimize the surface mesh, generate a precise volume mesh, assign material properties and export the result in the file format of the CAE package of your choice.

Preparing complex geometries for accurate simulation can be a time-consuming, complicated task. The Mimics FEA/CFD module, however, provides you with all the tools you need to simplify this complex job and to improve the outcome. And, since Mimics eliminates the lengthy conversion process to CAD formats known as reverse engineering, preparation time is significantly reduced.

From scanner images to instantly usable files for FEA/CFD in five quick steps with Mimics: 

 

 

Fig. 2: 3D model of human torso displaying bone and aorta with aneurysm


01/ Create a 3D object from the image data

The first step in the process is to segment the scanner images and to create a highly accurate 3D model. Its powerful segmentation tools make Mimics the best choice for this task.

Fig. 3: Femur head before and after remeshing


02/ Optimize and defeature the surface mesh

Next, the quality of the surface mesh needs to be optimized. With Mimics’ wrap function, you can easily close small holes and smoothen the object. Its (fully automated) remesh capabilities are sure to save a lot of precious time in the optimization stage. The perfect remeshed model is just a mouse-click away.

Fig. 4: Aortic arch clipped to display volume mesh


03/ Generate a volume mesh

 

Once you have an optimized surface mesh, you can convert it to a volume mesh in a single mouse-click. Now you have an accurate volume mesh of your 3D model that can be read by any FEA/CFD software. You’ll need this volume mesh in order to assign material properties in the next step.

Fig. 5: Human hand bones showing bone density


04/ Assign material properties based on the image’s gray values

 

At this stage your model not only contains geometrical, but also density information. Mimics can help you take full advantage of this additional data. You can use the image’s gray values (Hounsfield units) to assign material properties to your volume mesh. This will allow you to perform much more realistic simulations.

 

Fig. 6: Von Mises stress distribution on custom jaw implant


05/ Export the result to the FEA or CFD package of your choice

 

At this moment you’re ready to export your 3D model to the simulation package of your choice. Mimics allows you to export your object in the file formats of all major CAE packages. You’ll only have to apply appropriate boundary conditions and run the analysis.

Fig. 7: Blood flow simulation through aortic arch with artificial heart valve

 

Mimics FEA/CFD: the perfect tool to go quickly from scanner images to optimized files for FEA/CFD

With this comprehensive FEA/CFD module, Mimics facilitates and speeds up the entire workflow in preparing image data for accurate FEA or CFD. Since it eliminates time-consuming conversion to CAD formats - often referred to as reverse engineering - the module significantly reduces preparation time. Using image information to accurately create complex 3D geometries and to assign material properties allows you to run very realistic simulations. Transitioning your scanned images to finite element analysis or computational fluid dynamics has never been so quick and easy. Get your evaluation copy today and discover all the powerful features that will make your research easier, faster, more accurate…simply better.

Fig. 1: Image courtesy of P.J. Antunes - University of Minho, Portugal

Fig. 2: Data courtesy of Dr. Rouse – Walter Reed Army Medical Center, USA

Fig. 4: Data courtesy of Helmholtz Institute Achen - AME, Germany

Fig. 5: Data courtesy of Prof. Dr. F. Stockmans - AZ Groeninge, Belgium

Fig. 6: Data courtesy of Dr. J. Poukens; image courtesy of CADFEM Gmbh, Germany

Fig. 7: Image courtesy of M. Bongert - University Hospital Bergmannsheil, Germany