Waqas Rashid
Mechanical
- Oct 13, 2022
- 2
Hi everyone,
If I have material orientation in global axis (i.e. X,Y,Z) and I apply biaxial stretch in Abaqus using single element, I get same deformation gradient analytically and Abaqus (transformed logarithmic strains into stretches etc.). Attached in case 1.
If material orientation of X-Y makes 30 degrees with global axis (i.e. X,Y ) and I apply biaxial stretch in Abaqus using single element, I get different deformation gradients analytically and Abaqus (although I am using all the necessary transformations). Attached in case 2.
The idea behind was to make sure that strains from Abaqus are either in global axis or local axis (in the direction of material orientation).
If someone knows where I am making mistake let me know. Thanks.
If I have material orientation in global axis (i.e. X,Y,Z) and I apply biaxial stretch in Abaqus using single element, I get same deformation gradient analytically and Abaqus (transformed logarithmic strains into stretches etc.). Attached in case 1.
If material orientation of X-Y makes 30 degrees with global axis (i.e. X,Y ) and I apply biaxial stretch in Abaqus using single element, I get different deformation gradients analytically and Abaqus (although I am using all the necessary transformations). Attached in case 2.
The idea behind was to make sure that strains from Abaqus are either in global axis or local axis (in the direction of material orientation).
If someone knows where I am making mistake let me know. Thanks.