Thanks Ryan, part attached
''simple part attached, would you get reasonably accurate result with how this is carried out''
"would you get reasonably accurate result..." - Is the model like the real geometry? - Are the fixtures like the real constraints? - Is the loading like the real loading?
If the answer to all three is "yes" then one can expect accurate results.
In this case the constraints are absolute fixtures of both ends of the tube. If it is bonded perfectly to much stiffer bodies then this is true. If it is actually welded I would model the welds and part of the support bodies before adding fixtures.
The loading is two perfect rectangles of uni-directional force. Nothing applies force exactly like this. If local stress here is important I would model the bodies which actually bear on the beam, constrain them to move in the load direction, put a force on the back of them, put them in contact with the beam, and greatly refine the mesh in the contact regions. [This is a huge complication in the simulation - but if you really want to know what's going on here in detail, it's the no-excuses no-uncertainly way to go.]
thanks for your answer Shawn
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