Zhuang, M;
Morse, L;
Khodaei, ZS;
Aliabadi, MH;
(2024)
Reliability-based Fracture Analysis for Shallow Shell Structure with the Dual Boundary Element Method.
In:
Procedia Structural Integrity.
(pp. pp. 690-698).
Elsevier
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Abstract
Reliability analysis has gained prominence as a stochastic approach to incorporate uncertainties in structural analysis. This study presents a novel methodology for evaluating the sensitivity of the crack tip stress intensity factor in a shallow shell structure. The work focuses on the reliability analysis of a shallow shell structure containing a crack originating from the corner of a fuselage window. The analysis incorporates uncertainties in both geometrical and loading parameters. The sensitivity of the crack tip stress intensity factors with respect to the considered uncertainties is determined. The Implicit Differentiation Method (IDM)-based First-Order Reliability Method (FORM) is utilized, and the results are compared to the results obtained from Monte Carlo Simulation (MCS), with a maximum difference of 2.99%. The reliability analysis aids in determining an appropriate inspection crack size that satisfies safety requirements, consequently facilitating the selection of the corresponding inspection technique.
| Type: | Proceedings paper |
|---|---|
| Title: | Reliability-based Fracture Analysis for Shallow Shell Structure with the Dual Boundary Element Method |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.prostr.2023.12.069 |
| Publisher version: | https://doi.org/10.1016/j.prostr.2023.12.069 |
| Language: | English |
| Additional information: | © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
| Keywords: | Shallow shell structure; First-Order Reliability Method (FORM); Dual Boundary Element Method (DBEM); Fracture. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10189085 |
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