Re: Unable to obtain the SDEG variable for cohesive elements using GETVRM

When using USDFLD, be aware of 2 things. First, that the results returned from GETVRM will be the results at the beginning of the increment, and are not affected by the loading during the increment. Therefore when you print the value of the array you will initially have zero values, since the result is zero at the start of the analysis. 
 Second, the subroutine is called for each material point (integration point and layer, if applicable), so in each increment you will have multiple sets of results. Moreover, the subroutine is called twice per material point in the first iteration of each increment (and then once per material point for subsequent iterations in the same increment).
 

 So while it may look like you only get zeros, you may just be looking at multiple sets of values from the start of the analysis.
 

 Phil Williams
 simutech.com.tw