Hello,
Now, I am doing a simple uniaxial compression with 0.1% strain via FEBio and ANSYS for verifing. Since the strain is very small, the Fung Orthotropic reduces to linear constitutive model. I tried to use <mat_axis type="vector"> <a>1,0,0</a> <d>0,1,0</d> </mat_axis> to define its directions. By changing the a and d, the results changed but there was still big difference between the results of FEBio and ANSYS.
I want to know if the default initial directions of Fung Orthotropic material axes are the XYZ axises. If not, please help me to point it out.
Thanks a lot,
Lin
Now, I am doing a simple uniaxial compression with 0.1% strain via FEBio and ANSYS for verifing. Since the strain is very small, the Fung Orthotropic reduces to linear constitutive model. I tried to use <mat_axis type="vector"> <a>1,0,0</a> <d>0,1,0</d> </mat_axis> to define its directions. By changing the a and d, the results changed but there was still big difference between the results of FEBio and ANSYS.
I want to know if the default initial directions of Fung Orthotropic material axes are the XYZ axises. If not, please help me to point it out.
Thanks a lot,
Lin
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