hello,
in Code-Aster material parameter cannot directly depend on the time.
The steps are:
1) define the mat properties as functions of temperature
2) create a thermal result (THER_LINEAIRE or easier here with CREA_RESU) which contains the fields of (constant) temperature at the needed time instances
3) with AFFE_VARC(..NOM_VARC='TEMP'..) assign the thermal result to the material field
MatField=AFFE_MATERIAU(MAILLAGE=Mesh, AFFE=_F(TOUT='OUI', MATER=Mat,),
AFFE_VARC=_F(TOUT='OUI', NOM_VARC='TEMP', EVOL=ResTher, VALE_REF=0.0,), )
Now the material field "knows" at each element and at each time instant it's temperature
4) Analysis (STAT_NON_LINE)
Best regards
Johannes Ackva
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