DOIONLINE

DOIONLINE NO - IJMPE-IRAJ-DOIONLINE-2741

Publish In
International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE
Journal Home
Volume Issue
Issue
Volume-3,Issue-8  ( Aug, 2015 )
Paper Title
Fatigue Crack Growth Analysis Of Cracked Aluminum Plates Repaired With Bonded Composite Patch
Author Name
Sohail M. A. Khan, Mahir Es-Saheb
Affilition
Mechanical Engineering Department, College of Engineering, King Saud University,P.O. Box 800, Riyadh 11421, Saudi Arabia
Pages
5-8
Abstract
Abstract- In this work, the fatigue crack behavior of V- notched Aluminum 7075-T6 plates, of 2mm thickness, bonded with single side carbon composite patch configuration was experimentally investigated. This covers the study of the repair efficiency and fatigue life of cracked samples patched with three different patch thicknesses consisting of 4, 6 and 8 plies. Also, different stress ratios (R=0 and R=0.1) were applied. Furthermore, a complete set of similar tests on unrepaired configurations to compare and calculate the efficiency of bonding, were studied. In general, the obtained results showed that the repair efficiency is affected by the stress ratio and the thickness of the patch. Also, the life and load carrying capacity of adhesively bonded specimen were increased. Moreover, the bonded patch increases the fatigue life off all repaired samples ranging from 2.27 folds for 4 and 6 plies to 4 folds for 8 plies. Index Terms- Bonded composite repair, Fatigue life, Constant amplitude loading.
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