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Tensile behavior of composite patched cracked metallic structures

✍ Scribed by Siddaramaiah; V. A. Joy; A. N. Swarna Gowri; B. Leena; V. Vydehi Hemmige; S. Deepa

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 165 KB
Volume: 68
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19980627)68:13<2063::aid-app1>3.0.co;2-a

No coin nor oath required. For personal study only.

✦ Synopsis

Composite patches of epoxy-based unidirectional carbon and woven glass prepregs were adhesively bonded on uncracked and center cracked standard specimens of aluminum sheet, and patched specimens were evaluated by tensile testing. The effect of various surface treatments, patch length, and number of plies on the tensile strength was studied. Surface preparation of the specimens by sandblasting had a pronounced effect on strength improvement compared to other physical or chemical treatments. The strength of the cracked specimens increased up to 79% for unidirectional carbon patched specimens and 75% for woven glass patched specimens.

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