Residual Strength Improvement of an Aluminium Alloy Cracked Panel
F. Caputo*, G. Lamanna, A. Soprano
Identifiers and Pagination:Year: 2013
First Page: 90
Last Page: 97
Publisher Id: TOMEJ-7-90
Article History:Received Date: 26/11/2010
Revision Received Date: 11/10/2013
Acceptance Date: 11/10/2013
Electronic publication date: 29/11/2013
Collection year: 2010
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This work deals with the application of the micromechanical Gurson-Tvergaard (GT) model to the determination of the residual strength of analuminumflat stiffened panel (2024 T3) with a central through crack, by means of finite element simulations. The load condition is represented by a monotonic traction along the direction orthogonal to the crack plane. The used Finite Element code is WARP 3D®, which allows simulating ductile damage propagation by considering the GT model.
Numerical results have been compared with experimental ones available in literature. In the second part of the work, a home madeprocedurefounded on the SDI (Stochastic Design Improvement) technique is presented and applied to the improvement of the residual strength properties of the considered panel.