Part I of this article describes a series of tests of localized, penetrating impact on sandwich panels. The sandwich panel size was 500 500 mm2 with a thickness of 46 mm. Three types of panel configuration were tested. Penetration was carried out in quasi-static conditions and at approximately 70 and 93 m/s. Impactor mass was 1 kg with an impactor diameter of 50 mm and with three different impactor tip geometries. For each of the 27 combinations, the total energy absorption was measured, and the damage patterns are described and quantified.
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References
1.
1. International Union of Railways, UIC-Code 651, 2nd edn, 1.1.94.
2.
2. Kosza, P. and Sayir, M.B. (1994). Failure Patterns in the Core of Sandwich Structures under Impact Loading , International Journal of Impact Engineering, 15(4).
3.
3. Awerbuch, J. and Bodner, S.R. (1974). Experimental Investigation of Normal Perforation of Projectiles in Metallic Plates , International Journal of Solids and Structures, 10: 685-699 .
4.
4. Ravid, M., Bodner, S.R. and Holcman, I. (1994). Penetration into Thick Targets - Refinement of a ’’D Dynamic Plasticity Approach , International Journal of Impact Engineering, 15(4).
5.
5. Abrate, S. (1998). Impact on Composite Structures, Cambridge University Press, Cambridge, UK , ISBN-0-521-47389-6.
6.
6. Kepler, J. (2003). Equipment for Impact Testing of Sandwich Panels , Journal of Sandwich Structures and Materials, 5(2).
7.
7. Goldsmith, W.Landkof, B. (1985). Petalling of Thin Metallic Plates during Penetration by Cylindro-Conical Projectiles , International Journal of Solids and Structures, 21: 245-266 .
