FATIGUE CRACK GROWTH RATE OF ADHESIVELY REPAIRED THIN ALUMINIUM PANELS IN GENERAL MIXED MODE CONDITION
Publish place: 15th Annual Conference of Mechanical Engineering
Publish Year: 1386
Type: Conference paper
Language: English
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Document National Code:
ISME15_313
Index date: 28 March 2007
FATIGUE CRACK GROWTH RATE OF ADHESIVELY REPAIRED THIN ALUMINIUM PANELS IN GENERAL MIXED MODE CONDITION abstract
In this paper, finite element fatigue crack growth rate of thin aluminium panels containing a central inclined crack of 45o with single-side glass/epoxy patch are performed considering the general mixed-mode conditions (modes I, II and III). These panels are repaired with the 4 layers
glass/epoxy composite materials with the lay-up configurations of [90]4, [105]4, [-45]4, [-45/+45]2, and [902/02]. Effects of patch lay-up configuration on the restarting crack growth (crack re-initiation) life and crack growth rate of the repaired panels are investigated. Also the effects of patch lay-up configurations on the crack trajectories at patched and un-patched surfaces of the repaired panels are investigated. Results shown that, using the patch lay-up configurations of [90]4 and [902/02] are more efficient than the patch lay-ups perpendicular to the initial inclined crack in term of crack growth life extension.
FATIGUE CRACK GROWTH RATE OF ADHESIVELY REPAIRED THIN ALUMINIUM PANELS IN GENERAL MIXED MODE CONDITION Keywords:
FATIGUE CRACK GROWTH RATE OF ADHESIVELY REPAIRED THIN ALUMINIUM PANELS IN GENERAL MIXED MODE CONDITION authors
Hosseini-Toudeshky
Associate Professor Amirkabir University of Technology Aerospace-Department
Saber
Post Graduate student Amirkabir University of Technology Aerospace-Department
Mohammadi
Post Graduate student Amirkabir University of Technology Aerospace-Department