*shell section
*shell section
(OP)
i am using S4R shell element modelling I-beam under hot temperature.
I had my *.inp file (1),
*Shell Section, elset=_PickedSet4, material=STEEL
15., 5
............
*Temperature
_PickedSet4, 500
then i try another *.inp file (2):
*Shell Section, elset=_PickedSet4, material=STEEL, temperature=5
15., 5
............
*Temperature
_PickedSet4, 500, 500, 500, 500, 500
then i try another *.inp file (3):
*Shell Section, elset=_PickedSet4, material=STEEL, temperature=3
15., 5
............
*Temperature
_PickedSet4, 500, 500, 500
ABAQUS analysed both *.inp (1) and (2), they both run ok, and gave very close result.
But ABAQUS stop half way during the analysis of *.inp (3), it gave the following error:
***NOTE: THE SOLUTION APPEARS TO BE DIVERGING. CONVERGENCE IS JUDGED UNLIKELY.
***ERROR: TOO MANY ATTEMPTS MADE FOR THIS INCREMENT
wondering which is the correct way to do thermal analysis for shell element? please advice.
I had my *.inp file (1),
*Shell Section, elset=_PickedSet4, material=STEEL
15., 5
............
*Temperature
_PickedSet4, 500
then i try another *.inp file (2):
*Shell Section, elset=_PickedSet4, material=STEEL, temperature=5
15., 5
............
*Temperature
_PickedSet4, 500, 500, 500, 500, 500
then i try another *.inp file (3):
*Shell Section, elset=_PickedSet4, material=STEEL, temperature=3
15., 5
............
*Temperature
_PickedSet4, 500, 500, 500
ABAQUS analysed both *.inp (1) and (2), they both run ok, and gave very close result.
But ABAQUS stop half way during the analysis of *.inp (3), it gave the following error:
***NOTE: THE SOLUTION APPEARS TO BE DIVERGING. CONVERGENCE IS JUDGED UNLIKELY.
***ERROR: TOO MANY ATTEMPTS MADE FOR THIS INCREMENT
wondering which is the correct way to do thermal analysis for shell element? please advice.





RE: *shell section
corus
RE: *shell section
does it really matter to indicate the 'temperature=n', in the line of *shell section?
as i tried not to indicate in my *.inp file (1) (attached RECHEAT.inp), and put it in another *.inp file (2) (attached RECHEAT1.inp), where temperature=5. ABAQUS completed the analysis for case (1), but stop half way for case (2).
I notice that if I not indicate the 'temperature=n', ABAQUS would only considered NT11 and NT12, which i found from the *.dat file after I ran *.inp (1).
please advice.
RE: *shell section