Simplified algorithm for reliability sensitivity analysis of structures: A spreadsheet implementation.

ABSTRACT: An important segment of the reliability-based optimization problems is to get access to the sensitivity derivatives. However, since the failure probability is not a closed-form function of the input variables, the derivatives are not explicitly computable and rather require a full reliability analysis which is computationally expensive. In this paper, a step-by-step algorithm has been presented to calculate the derivatives of the probability of failure and safety index with respect to the input parameters based on the advanced first-order second-moment (AFOSM) reliability method. The proposed algorithm is then implemented in a spreadsheet using Visual Basic for Application (VBA) programming language. Two geotechnical and structural examples are then presented to examine the program and des

SUBMITTER: Shadab Far M 

PROVIDER: S-EPMC6407918 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature