Transform stiffness matrix from local to global
Transform stiffness matrix from local to global
(OP)
Hi
I want to compute transformation matrix for a flat shell element which has 6-dof per node to convert stiffness matrix from local to global coordinate. does anyone know about this?
I want to compute transformation matrix for a flat shell element which has 6-dof per node to convert stiffness matrix from local to global coordinate. does anyone know about this?





RE: Transform stiffness matrix from local to global
another day in paradise, or is paradise one day closer ?
RE: Transform stiffness matrix from local to global
RE: Transform stiffness matrix from local to global
The complexity for you is warped elements (when the four points do not fall on a plane). The "best" way to solve this is ...
1) don't allow warped elements, or
2) use a best fit solution (you'll have four equations defining the plane, ie redundant equations, and the solution is well known).
another day in paradise, or is paradise one day closer ?