Strange Deflection Results: static linear plate self-weight

edaoreugif · 2022-10-13 20:30:54

Keep getting wrong results when trying to simulate a flat rectangular piece of sheet metal constrained on all sides with the only load being gravity.

Results are too low and the pattern of deformation is wrong as well. Max deflection should be at the centers of the part however this section barely has any deflection

Any thoughts? I've been working on this for a week.

edaoreugif · 2022-10-13 20:40:04

It doesn't let me post the study file so here is the com file

Model is 16"x48"
Shell DKT model with thickness of 0.06"
Material is Aluminum 5052-H32

Attachments:
Stage_1.comm, Size: 1.8 KiB, Downloads: 99

jeanpierreaubry · 2022-10-17 12:59:42

hello

it is annoying that you do not give more information
i do not understand very well the unit system you are using
the values do not look like coherent to me

jean pierre aubry

edaoreugif · 2022-10-24 17:54:23

haha thanks for the reply Jean. Units are in PSI, LB/IN^2, IN/S^2, IN, and so forth. Attached is a paraview image of the results

Last edited by edaoreugif (2022-10-24 17:55:35)

Attachments:
deflection-min.jpg, Size: 370.75 KiB, Downloads: 59

jeanpierreaubry · 2022-10-25 07:17:47

hello

and my own results of the same problem
translated in an homogeneous unit system
N for forces, mm for length and t (metric ton) for mass

Attachments:
def.png, Size: 76.25 KiB, Downloads: 65

#1 2022-10-13 20:30:54

Strange Deflection Results: static linear plate self-weight

#2 2022-10-13 20:40:04

Re: Strange Deflection Results: static linear plate self-weight

#3 2022-10-17 12:59:42

Re: Strange Deflection Results: static linear plate self-weight

#4 2022-10-24 17:54:23

Re: Strange Deflection Results: static linear plate self-weight

#5 2022-10-25 07:17:47

Re: Strange Deflection Results: static linear plate self-weight

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