Study on Damage Modes of a Sandwich Panel Impacted Repeatedly

Krimo Azouaoui; Said Mouhoubi

doi:10.4028/www.scientific.net/AMR.980.147

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 980Study on Damage Modes of a Sandwich Panel Impacted...

Study on Damage Modes of a Sandwich Panel Impacted Repeatedly

Abstract:

This paper describes an experimental investigation for determining the damage modes under low energy impact-fatigue of sandwich panels consisting of aluminum skins supported by honeycomb core made of aluminum. Square samples of 125mm by 125mm sides and 10mm thickness (skin of 0.6mm and 8.8mm of core) were subjected to impact fatigue loading using a testing machine at four different energy levels (2J, 3J, 5J and 7J). The square plates are clamped in a fixture system over a 100mm diameter hole. Three different diameters of impactor head (15mm, 25mm and 35mm) are used to study their influence on life duration of the sandwich plates. Results showed that damage area at impacted face and propagation of multi-cracks at rear face are greatly affected by energy level and impactor diameter.

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Periodical:

Advanced Materials Research (Volume 980)

Pages:

147-151

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.980.147

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Online since:

June 2014

Authors:

Krimo Azouaoui*, Said Mouhoubi

Keywords:

Aluminum Sandwich Panels, Damage, Honeycomb Core, Impact Energy, Impact Fatigue Life, Repeated Impact

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* - Corresponding Author

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