Hello everyone,
I run FEA on human mandible by virtual implantation of implants. I usually assign material property for the bone using APDL and MIMIC. MIMICS because we divide the bone into 100 segments and each segment has its own material property. Is there any way where the material property can be given to bone without using APDL and MIMICS. I am looking for an option to give the material property using the usual design modeller method.
Can you please explain the question a bit more in detail.
If you want to use design modeller then you must export the geometry as stl or iges instead of Ansys mesh. You can do it using 3matic.
I didn't understand why you want to use design modeller for assigning properties. If you want to use a single value of properties then you can find the average density of the anatomy of concern and use empirical relationship. Infact that is what mimics uses.
If you want to assign for eg 100 different Young's modulus values to the mandible then that would be a difficult task. You will need 100 different bodies to which you will assign material properties. You can achieve that too by using different brackets for pixel intensity during segmentation from the same region of interest and then exporting each as a different geometry. You can do it but the process will be prone to human error as you need to keep track of all the parts/bodies, their average density, obtained material properties etc.
Manarshhjot Singh
Hi,
Thank you for the reply. What you explained is right, assigning 100 properties is what I am doing right now using Mimics. based on the empirical relationship between the Hounsfield unit and material property (density), mimics automatically assigns 100 properties by dividing the bone region into 100 different parts. I cannot use the average value of bone properties, as the cortical region will have a higher value than the cancellous region, and the average value will not consider this difference.
right now I am using mechanical APDL, to export the bone as a .cdb file and then importing it into mimics. I just wanted to know if such a process is feasible with design modeller.
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