On the Effect of Curvature in Debonded Sandwich Panels Subjected to Compressive Loading

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Abstract

The aim of this study is to obtain an understanding of the effect of panel curvature on residual compressive strength in debond damaged sandwich panels. Finite element analysis and linear elastic fracture mechanics are employed to analyze the residual compressive strength of curved panels with a circular debond. The Crack Surface Displacement Extrapolation (CSDE) method is used to calculate fracture parameters in the interface. Compression tests were carried out on two types of debonded curved panels with different curvature using Digital Image Correlation (DIC) measurements to determine the full-field distribution of strain. The failure and buckling loads predicted from finite element analyses are in good agreement with experimental results.
Original languageEnglish
Title of host publicationSandwich Construction 8: ICSS 8 : Proceedings of the 8th International Conference on Sandwich Structures
Place of PublicationPorto, Portugal
PublisherFaculty of Engineering, University of Porto
Publication date2008
Pages1121-1132
ISBN (Print)978-972-8953-23-2
Publication statusPublished - 2008
Event8th International Conference on Sandwich Structures - Porto, Portugal
Duration: 6 May 20088 May 2008
Conference number: 8
http://paginas.fe.up.pt/~icss8/welcome.html

Conference

Conference8th International Conference on Sandwich Structures
Number8
CountryPortugal
CityPorto
Period06/05/200808/05/2008
Internet address

Cite this

Moslemian, R., Berggreen, C., & Branner, K. (2008). On the Effect of Curvature in Debonded Sandwich Panels Subjected to Compressive Loading. In Sandwich Construction 8: ICSS 8 : Proceedings of the 8th International Conference on Sandwich Structures (pp. 1121-1132). Faculty of Engineering, University of Porto.