Female breast under zero-gravity
Female breast under zero-gravity
(OP)
Hi every one,
I am doing a Biomechanics research of female breast cancer, i am using ANSYS 12 to solve my FEM problems.
I have the mesh of deformed breast under itself weight (from a 3D RMI images) and i would like to know if it is possible to get the zero-gravity mesh of that breast. So i can apply the gravity in another direction.
I am doing a Biomechanics research of female breast cancer, i am using ANSYS 12 to solve my FEM problems.
I have the mesh of deformed breast under itself weight (from a 3D RMI images) and i would like to know if it is possible to get the zero-gravity mesh of that breast. So i can apply the gravity in another direction.





RE: Female breast under zero-gravity
Thanks and best regards
RE: Female breast under zero-gravity
The most correct way would be to apply stresses as initial conditions to the deformed configuration of the breast and let the problem find the undeformed configuration. I seems that it'd be difficult to know what stresses are present in the tissue to apply as initial conditions though.
-Brian
RE: Female breast under zero-gravity
Actually i don't know how to apply stresses as a initial conditions because i just have the final deformed shape and the internal force, can you please give me some hints to do it?
thank you again
RE: Female breast under zero-gravity
RE: Female breast under zero-gravity
RE: Female breast under zero-gravity
Hi flash, yes i know the material propert actually breast has three tissues and all of them are hyperelastic (rubber-like) material.
RE: Female breast under zero-gravity
You could probably automate this process, but seeing as there are likely quite a few parameters defining the shape of the breast, it might be easier to adjust them manually.
RE: Female breast under zero-gravity
I have another question, i start to use ansys 13, in this version there is no real constant for shell 181 or shell 281 and I dont know how to define the thickness of shells!!
best regards and merry christmas