Home Advanced Materials Research Advanced Materials Research Vols. 1120-1121 General Method for Optimizing Composite Patch...
General Method for Optimizing Composite
Patch Repairs
833
Abstract:
The aim of this work is to define a general method for the optimization of composite patch repairing. Fracture mechanics theory shows that the stress intensity factor tends towards an asymptotic limit K∞. This limit is given by Rose’s formula and is a function of the thicknesses and mechanical properties of the cracked plate, the composite patch and the adhesive. The proposed approach consists in considering this limit as an objective function that needs to be minimized. In deed lowering this asymptote will reduce the values of the stress intensity factor hence optimize the repair. However to be effective this robust design must satisfy the stiffness ratio criteria. The resolution of this double objective optimization problem with Matlab program allowed us determine the appropriate geometric and mechanical properties that allow the optimum design; that is the selection of the adhesive, the patch and their respective thicknesses.
Info:
Periodical:
Advanced Materials Research (Volumes 1120-1121)
Edited by: Antonio Apicella Pages:
670-674 DOI:
https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.670
Citation:
Cite this paper
Online since: July 2015 Authors:
Abdelmadjid Ait Yala*, Abderrahmanne Akkouche
Keywords:
General Method, Objective Function, Optimization, Patch Repair, Stress Intensity Factor
Export: RIS,BibTeX Price: 36,00 € Permissions: Request Permissions Share:
AddThis Sharing Buttons Share to Mendeley
Share to FacebookShare to LinkedInShare to TwitterShare to BaiduShare to WeChatShare to EmailShare to PrintShare to More
* - Corresponding Author
References Cited by
