Realistic result?
Realistic result?
(OP)
Hi everyone!
I'm a bit puzzled about a simple case dealing with bar elements.
According to the theory, this type of element only works in traction-compression.
So if we consider a simple bar, 2 nodes, one constrained and the other one vertically loaded (y axis), then the solution is as follows:
-displacement along the x axis
-constraint force in node 1 along x axis
It doesn't seem very realistic to me as the load is in the perpendicular direction, however this is in line with the bar theory. So I'm a bit confused about the validity of it now!
Any clarification would be more than welcome!!
Thanks a lot
I'm a bit puzzled about a simple case dealing with bar elements.
According to the theory, this type of element only works in traction-compression.
So if we consider a simple bar, 2 nodes, one constrained and the other one vertically loaded (y axis), then the solution is as follows:
-displacement along the x axis
-constraint force in node 1 along x axis
It doesn't seem very realistic to me as the load is in the perpendicular direction, however this is in line with the bar theory. So I'm a bit confused about the validity of it now!
Any clarification would be more than welcome!!
Thanks a lot





RE: Realistic result?
or do you mean ROD ?
if you mean ROD, then it won't react a transverse load. if you model your example, the model will just sit in the corner and have a nervous break-down.
another day in paradise, or is paradise one day closer ?
RE: Realistic result?
RE: Realistic result?
(the model will just sit in the corner and have a nervous break-down) = (the solver will throw errors regarding unrestrained degrees of freedom)
This made me laugh!! I've sent models to the corner many times!
RE: Realistic result?
Haha, I laughed at that one too. I think anyone that's spent a decent amount of time making FEA models has seen his model sit in the corner on a few occasions. I've even had models that refused to ever come back out of the corner, and I had to start all over again!
RE: Realistic result?
http://www.stressebook.com/beam-and-bar-elements/
http://www.stressebook.com/beam-bar-elements-shear...
The rod element is only capable of providing torsional and axial stiffness (DOF 1,2,3,4).
www.stressebook.com
Stressing Stresslessly!