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Just to chime in, this is not strictly speaking the case. Stiffness matrices, mass matrices, damping matrices and other matrices (related to other physics) as well as force vectors are calculated by numerical integration which utilizes integration points, but the solution (e.g., deflection) is determined for the nodes. Then, the solution or gradients (of various orders) of the solution are evaluated in the element (e.g., at integration points) using the shape functions - so nodal results are used to infer other results.rb1957 said:FEA works with nodes, so results are calculated at nodes (ok, I know they're not, they are calculated at integration points within the element and then the nodal results are inferred).