I have question regarding to 1d cantilever beam problem which is divided to five elements.
I want to reduce the degree of freedom for each node to 1(just keep uy)instead of 6.
I added fixed support in the first node and applied displacement on each other nodes( make it freely translate in y direction)
But it still gives me results for 6 dof for each node.
My goal is to get only 5×5 MK matrices but it gave me 30*30.
Anyone knows how to fix this problem?
That beam element is 3D because it has 6 dofs per node. This number cannot be reduced since it characterises the element. You can fix some dofs based on the constraints appliedto the nodes, but the element stiffness matrix is always 6×6
Denis Benasciutti , what are the constraints that I can apply on the nodes to make it 1dof. I tied to apply displacement on each nodes( make it freely translate in y direction) but still getting same results. Thanks
- Badges
- Science topic