Sensitivity analysis in a probabilistic design of composite
laminated plates
by
A. Feraidon, J. Sejnoha and M. Sejnoha
Abstract
A method of design sensitivity analysis for a failure
probability is presented and formulae are derived in such a form that a
perturbation technique can be applied for a general reliability-based
optimum design formulation of laminated plates. The resulting
sensitivity coefficients contain only first order derivatives. Different
failure criteria are considered and several examples are solved by means of
a geometrically non-linear stochastic thin-plate finite element.
The method described herein is applicable for general cases where the
failure state can only be defined explicitly through a set of equations.
Last modified: Nov 4 2000