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Element b

sin a

The structural stiffness matrix can now be multi-assembled using a dof. correspondence table, (ref. §9.10), and will be of order 6x6. Only the upper sub-matrices need to be completed, i.e. [Kaa\ and [Kaß], since the reactions are not required in this example. The necessary structural governing equations and hence the required structural stiffness matrix are therefore given as

Row/

Row/column in

column

0 0

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