Yin Zhang

icon indicating a website link https://yzhang951.github.io/

icon company Peking University icon location Beijing icon location Yin Zhang is an Assistant Professor at Peking University, Department of Mechanics and Engineering Science.

Results 2 comments of Yin Zhang

There is something wrong about the update of crystal orientation. The Euler angles 'psi_t', 'dir_cos' or 'xs, xm' are not updated within the loop.

In the original paper, the plastic velocity gradient is defined using time-independent slip direction and norm. This approach stems from the fact that the main constitutive equations are defined in...

Error: TIME STEP TOO LARGE!! STOPPING!!

The VUMAT code has no intrinsic set of units. The code should be running fine if you use consistent units. See the Consistent Units table [here](https://abaqus-docs.mit.edu/2017/English/SIMACAEGSARefMap/simagsa-c-absunits.htm). From my experience, caution...