weidongli's blog

Hi everyone,

     I encountered a problem while runing a UMAT in Abaqus 6.9, which
kept aborting with a systme error code 693. The UMAT is wriiten in
Abaqus 6.5 and prove runing well in 6.5. But when putting it in 6.9, it
always failed. I can not figure out what going on there. Do you have
good ideas?

     The error message is like
 
    The system erro code 693

    CONTACT FORCE ERROR TOLERANCE FOR CONVERT SDI=YES                
1.00   

    Thanks!

Hi all,

     I am using abaqus to model a nanoindentatin problem and always meet some
warnings. There are generally three types of warnings, as shown below.
Is there anyone who know how to resolve this kinds of problem. I have
been struggling to this problem for a couple of days.  So, you help will 
be highly appreciated.