Characterization of the fracture toughness property (G1c) of composite laminates using the double cantilever beam specimen
- 1 October 1989
- journal article
- research article
- Published by Wiley in Polymer Composites
- Vol. 10 (5) , 305-312
- https://doi.org/10.1002/pc.750100506
Abstract
The results of a study on the interlaminar fracture toughness properties (G1c) of four unidirectional carbon fiber epoxy materials are presented. The selected materials included Narmco 5245C, Hexcel F584, and American Cyanamid 1806 resins reinforced with Hercules IM6 fibers and for a baseline material Narmco 5208 reinforced with T300 fibers. TheG1cvalues determined on Double Cantilever Beam specimens were found to range from 93 to 370 J/m2. The higher values may partly result from fiber bridging during fracture. This paper discusses specimen configuration, test procedure, and the Scanning Electron Microscope results.Keywords
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