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Application of the homotopy analysis method to determine the analytical limit state functions and reliability index for large deflection of a cantilever beam subjected to static co-planar loading

Record type: Article

In this paper, the Homotopy Analysis Method (HAM) is applied to obtain the limit state function, probability of failure and reliability index based on all stochastic and deterministic variables for a cantilever beam subjected to co-planar loading for the first time. First, it is established that a few iterations in the series expansion are sufficient to obtain highly accurate results and a substantial convergence region. After showing the effectiveness of HAM, two limit state functions are introduced as the maximum deflection in the y direction and maximum allowable stress, respectively. Then the first order reliability method (FORM) is employed to obtain reliability index, and omission sensitivity factor analytically. It is shown that HAM is a promising tool to obtain limit state function, probability of failure and reliability index analytically for nonlinear problems. Finally, a sensitivity analysis is done to show that which parameters could be considered deterministic or stochastic variables.

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Citation

Kimiaeifar, A., Lund, E., Thomsen, O.T. and Sørensen, J.D. (2011) Application of the homotopy analysis method to determine the analytical limit state functions and reliability index for large deflection of a cantilever beam subjected to static co-planar loading Computers & Mathematics with Applications, 62, (12), pp. 4646-4655. (doi:10.1016/j.camwa.2011.10.050).

More information

Published date: December 2011
Keywords: reliability index, omission sensitivity factor, failure function, homotopy analysis method, geometrical nonlinearity
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 339108
URI: http://eprints.soton.ac.uk/id/eprint/339108
ISSN: 0898-1221
PURE UUID: 90504d3c-3b55-4ef4-9361-9ea54f262a16

Catalogue record

Date deposited: 23 May 2012 12:08
Last modified: 18 Jul 2017 05:54

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Contributors

Author: A. Kimiaeifar
Author: E. Lund
Author: O.T. Thomsen
Author: J.D. Sørensen

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