## 3. A simple element analysis (cont'd)

The right-hand side is a vector of nodal applied forces and
\(\mathbf S\) is known as the element stiffness matrix.

For a triangle with one degree of freedom at each node, the stiffness
matrix will be 3×3. Each component of the matrix represents the stiffness
existing
between one node and another (or itself, along the diagonal).
The stiffness relationship between two nodes is symmetrical.

R. Funnell
Last modified: 2018-11-07 12:52:06
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