Lattice element

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Lattice element

Post  miguel torres on Wed Nov 07, 2012 1:31 am

I have a model of a reinforced concrete wall, in which the element Lattice employment. Boundary conditions give fixed support on two of the four nodes and apply a force on one of the other free nodes. Running the Ruaumoko you get a file that indicates that the stiffness matrix is singular. Also, it is seen that nodes do not match the defined nodes Ruaumoko graph showing result.

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Lattice elemntg

Post  Athol Carr on Thu Jul 25, 2013 9:18 am

Have you fixed the rotation degrees of freedom, the lattice element only provides stiffness for the displacement degrees of freedom

Athol Carr

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