Local bending containment in sandwich panels with sub-surface core damage

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Authors
Keshavanarayana, Suresh R.
Ghimire, Ritesh
Advisors
Issue Date
2008-05-02
Type
Article
Keywords
Sandwich , Damage , Repair
Research Projects
Organizational Units
Journal Issue
Citation
Raju KS, Ghimire R. Local Bending Containment in Sandwich Panels with Sub-surface Core Damage. Journal of Reinforced Plastics and Composites. 2009;28(13):1601-1611. doi:10.1177/0731684408089862
Abstract

A simple repair technique to contain the local facesheet bending in sandwich panels with sub-surface core damage has been explored using experiments. The strategic filling of honeycomb cells in the damage region using polymeric resin has been used to repair impact/ indentation damaged sandwich panels. The effectiveness of repair was measured using edgewise compression tests. The test results indicate that the best bending containment is achieved by filling a honeycomb cell at the center of the damage region and at the periphery of the damage region along the line of potential failure. The residual strengths of repaired sandwich panels improved to 87—92% of that of the undamaged panel.

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Publisher
Sage
Journal
Book Title
Series
Journal of Reinforced Plastics and Composites,;vol. 28, 13
PubMed ID
DOI
ISSN
0731-6844
1530-7964 (online)
EISSN