The finite element code ANSYS is used to calculate the temperature and stress distributions for the first wall of DFLL-TBM （dual functional lithium lead-test blanket module）, for testing in ITER. Preliminary analyses indicate that not only the low temperature design rules, the well-known 3Sin rules, are satisfied for the first wall, but the additional high temperature structural design criteria for the creep damage limits and creep-ratcheting limits are met as well.
