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Reduction

*Reduction

*Reduction
<FoS_0>, <Delta FoS>
This procedure is used to perform a strength reduction analysis. In a reduction analysis, inertia effects are not taken into consideration. A reduction step can be linear or nonlinear, but time-dependent material effects (e.g. creep, swelling) are ignored. However, rate-dependent plasticity and hysteretic behavior are taken into account.

  • The following line specifies the initial factor of safety \(\text{FoS}_0\) and the increment of the factor of safety \(\Delta \text{FoS}\) that is added with each following increment.

Note that time intervals \(\Delta t\) are calculated automatically as the inverse of the maximum number of increments specified in the step definition. This should be considered when using amplitude definitions such as loading or unloading ramps.