Image To Solid Finite Element Model

Nurbs To Solid Finite Element Model

Surface To Solid Finite Element Model

Visual Models To Solid Finite Element Model

Finite Element Modeling From Material, Medical Images

Finite Element Modeling From MRI, MicroCT

 

Do not hesitate contact us in the framework of academic collaboration or commercial works

gokhanaltintas@mekanik.net

 

 

SAMPLE PROBLEM MRI TO FEM

BONE IMAGE SLICES TO FINITE ELEMENT MODELLING

Image Slices To Hexahedron Elements (No Smoothed Surface)

Image Slices To Tetrahedron Elements (Smoothed Surface)

 

INPUT FILES

Total 200 Image Slices

Original Image Size 1650x1180 Pixels File Type .png

Sample Image Size 400x400 Pixels File Type .png

 

RESULT FILES (FOR VISUAL PURPOSE)

400x300 Video File (Result Models In Abaqus) Download

400x300 Video File (Cleared Fem Model) Download

Abaqus Hexahedron Meshed Part (This is only sample file with islands, spikes….) Download

 

 

 

 

 

There Are Several Ways To Make Finite Element Model. But It Can be Needed To Apply Several Different Steps Iteratively And Repeatedly For Achieving To Qualified Solid Mesh.

First Step Is Connecting To Images (This Is a Necessary Process)

 

 

 

 

 

 

 

There Are Different Methods On The Way Of Image To Solid Model Process separate Cells Etc.

Please Check Below

At The First Glance One May Think That Below Models Are Suitable For The Aim…

 

 

 

 

 

 

 

But Close View

 

These models are Not Ok! Check The Polygons, Curves, Boundaries, Surfaces, And Solids …….. And Connectivity!!!!

 

 

 

 

 

 

 

The Modeling Process Can Be Checked Step by Step By Following Boundaries Or Any Other Visual Properties. Orthoslice Checking (Boundary Checking) Very Handy!!!

 

 

 

 

 

 

 

 

By Removing Last Slice You Can See Your Visual3d Model Boundaries

 

 

 

 

 

 

 

Before Finite Element Modeling, The Objects Must Be In The Recognizable Format For The Finite Element Codes…

There Are Several Suboptions Object Type Formats

Nurbs With Curves, Nurbs With Polylines, Polymesh With Curves, Polymesh With Polylines Etc.

Every Software May Need Different Suboptions For The Same Type Format!!!

Some Object File Types May Include Mask, Render, Color Properties That We Can Not Use In Finite Element, Even Though File Type Is Ok For Fem Tools.

After All, We May Have Mesh, But Is It Suitable For Design? If You Are Movie Maker, Cartoon Designer, Or Visual Art Worker, All Are Suitable For Your Work.

But If You Are a Scientist, And You Want To Use Your Models For Static, Dynamic Or Any Multiphysics Based Problems You Will Go Away From Accurate Results.

For Better Design You Must Use Many Algorithms And Its Combinations Repeatedly

Spike Reduction, Noise Reduction, Refining Tools, Normal Repairing, Intersection Removing, Island Tools…………..Boundary, Surface, Point, Solid Editing Tools……………

  

 

 

 

 

 

 

 

Let’s Turn Back To Example

Reduced Solid Model (This Is Cleared Model With No Islands, Spikies. As If Real Object)

 

 

 

 

 

These are the results of the same problem. You can see differences Between the Below Models. Scientist can choose his way according to his aim (These Are Produced From Uncleared Solid Models)

 

400x300 Video File (Result Models In Abaqus) Download

400x300 Video File (Cleared Fem Model) Download

Abaqus Hexahedron Meshed Part (This is only sample file with islands, spikes….) Download