Urrrrrrr ... this is not true for bending of the support plate out of its plane, i.e. twisting around the y or z axes:HarryvL wrote: ↑Fri Jan 11, 2019 8:12 pm5) The torsion shaft between the two supports does nothing for symmetric loading (so I would even go further than @fandaL and leave it out). For asymmetric loading it also contributes little, because the load from both sides is mainly taken out at the supports.
This is fantastic, this example show exactly how to use 2d mesh. Thanks. How to determine min and max size of mesh? You set it for 20 and 20.
Actually this is step file so sketches are not available. But especially I did another issue. Please see below. I'll study your links but few are not working. Thanks.
Yeah, but this is faster, easier and less chance to do something wrong
I just chose the size which "looked good" to me for the beginning. It is not bad practice to run the new model with finer and finer mesh (which is easy in FreeCAD due to work on geometry and not directly on the mesh) and if there would not be a singularity, you will see mesh convergency - from some size the results will not change significantly. Different behaviour is if there is some singularity - stress concentration in the sharp corner or under the point load - in that case refinement of the mesh would lead to extreme stresses with linear static analysis which does not make practical sense. This was discussed somewhere on the FC forum or there are for sure nice articles and blogs explaining it, e.g. by quick search: