Stability of the face layer of sandwich beams with sub-interface damage in the foam core

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Koissin, Vitaly and Skvortsov, Vitaly and Shipsha, Andrey (2007) Stability of the face layer of sandwich beams with sub-interface damage in the foam core. Composite Structures, 78 (4). pp. 507-518. ISSN 0263-8223

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Abstract:This paper addresses the effect of local indentation/impact damage on the bearing capacity of foam core sandwich beams subjected to edgewise compression. The considered damage is in a form of through-width zone of crushed core accompanied by a residual dent in the face sheet. It is shown that such damage causes a significant reduction of compressive strength and stiffness of sandwich beams. Analytical solutions estimating the Euler’s local buckling load are obtained for two typical modes of damage. These solutions are validated through experimental investigation of three sandwich configurations. The results of the analytical analysis are in agreement with the experimental data.
Item Type:Article
Copyright:© 2007 Elsevier
Faculty:
Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/75529
Official URL:http://dx.doi.org/10.1016/j.compstruct.2005.11.012
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