you should go ahead and simplify the screw, as it has threads it will create problem while mashing, go ahead and remove the threads and apply local bonded connector and then do the simulation again, if you want to find the stresses on the bracket then this much simplification wont affect much to your over all results...
here again i provide details of the bracket model which i want to analyse with static study .
CONTACTS : rigid connector for flat head bolt & Bracket
virtual wall for the zee bracket
Load acting on head of pin is 549 N
ISSUE NO. 1 : MOMENT OF INERTIA CALCULATION
Hand calculation : Moment of inertia Ixx = 50 x 53 / 12 = 520.833 mm4.
Moment of inertia Ixx = 50 x 53 / 12 = 52083.3 mm4.
Value reported for Ixx & IYY is right
HAND CALCULATION OF STRESS at marked location :
Fdw = 549 N
Lmax 2 = 39.55 mm
Moment = (Fdw) x (Lmax 2 ) = 549 x 39 .50 = 21685.5 N-mm
Section modulus = ( B 2 -B 12 ) x (B1)3 / 6 = (50 -10) x 52 / 6 = 166.67 mm3
Stress = moment / section modulus = 21685.5/166.67 = 130.11 N / mm2
1) The solidwork results are not matching. When i see normal stress in x , normal y and normal z.
2) SW displays msg for large displacement analysis , why ?
3) stresess in inplane direction are are very high, cant find the reason ?
model link :
I haven't checked the model but the large displacement flag indicates that something moves much, is this expected?
Can you show a displacement plot?
Edit: I don't know why you add the load on the pin and I suspect that gives you strange behaviour. It seems better to apply it to the flat bolt directly.
I'd also use bonded connection between the bolt and bracket since now you've locked the whole thread area of the bolt to the bracket.