Journal
ENGINEERING FRACTURE MECHANICS
Volume 70, Issue 1, Pages 93-103Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0013-7944(02)00024-3
Keywords
honeycomb sandwich panel; double cantilever beam test; flatwise tension test; energy release rate; composite material
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Two types of experiments were designed and performed to evaluate the adhesive bond in honeycomb sandwich panels. The tensile bond strength between the facesheet and the core was determined through the flatwise tension test. The fracture toughness of the bond line was measured through the double cantilever beam test. Fracture toughness values varied for different facesheet thicknesses and core materials. Toughness was also different for the bag and tool sides of the panels for all specimen types. (C) 2002 Elsevier Science Ltd. All rights reserved.
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