FAQ 000842 PT

Cálculo RF-STABILITY

Sometimes I obtain negative critical load factors in RF-STABILITY. How do I go about this?

Resposta

If you obtain negative critical load factors in the module, increase the number of the eigenvalues (eigenvectors) to be determined. If there are not enough eigenvalues, it is not possible to hide the negative eigenvalues and thus show only positive, realistic results.

For these eigenvalues, no stability failure occurs due to tension forces and no conclusion can be made about the buckling behavior of the model.

Alternatively, you can use the ICG iteration to exclude negative critical buckling factor.

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RFEM Outros
RF-STABILITY 5.xx

Módulo adicional

Análise de estabilidade pelo método de cálculo dos valores próprios