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Table 3
Propagation of the surface area relative error ϵA due to tessellation on the aproximated relative error of the displacement u, the axial load F, the stiffness K and the stress σ, for linear elements without reduced integration, for springs driven by displacement and by axial force.
| Spring BC | A | u | F | K | σ |
|---|---|---|---|---|---|
| u | − ϵA | 0 | −2ϵA | −2ϵA | 0 |
| F | −ϵA | +2ϵA | 0 | −2ϵA | +2ϵA |
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