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Minimum Unbalanced Displacement Norm

This command is used to construct a StaticIntegrator object of type MinUnbalDispNorm.

integrator MinUnbalDispNorm $dlambda11 <$Jd $minLambda $maxLambda>

$dLambda11

first load increment (pseudo-time step) at the first iteration in the next invocation of the analysis command.

$Jd

factor relating first load increment at subsequent time steps. (optional, default: 1.0)

$minLambda $maxLambda

arguments used to bound the load increment (optional, default: $dLambda11 for both)

The load increment at iterations i, dLambda1(i), is related to the load increment at (i-1), dLambda1(i-1), and the number of iterations at (i-1), J(i-1), by the following:

dLambda1(i) = dLambda1(i-1)*Jd/J(i-1)

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