rackwitz: A limit-state-function defined by Rackwitz
Description
The function is defined in the standard space and internal normal-lognormal transformation is done. Its definition with iid lognormal random variables is:
$$d + a\sigma\sqrt{d} - \sum_{i=1}^d x_i$$
Default values are: \(a=1\), mean=1 and \(\sigma=0.2\).
Usage
rackwitz
Arguments
Format
The function can handle a vector or a matrix with column vectors.
References
Rackwitz, R: Reliability analysis: a review and some perspectives
Structural Safety, 23, 4, 365-395, 2001.