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An experimental study of dynamic delamination of thick fiber reinforced polymeric matrix composites

Lambros, J. and Rosakis, A. J. (1997) An experimental study of dynamic delamination of thick fiber reinforced polymeric matrix composites. Experimental Mechanics, 37 (3). pp. 360-366. ISSN 0014-4851. doi:10.1007/BF02317432.

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Dynamic delamination of thick fiber reinforced polymeric matrix composite laminates is investigated using optical techniques and high-speed photography. The laminates used in this work are graphite/epoxy fiber reinforced, 65 percent fiber volume fraction, composite plates consisting of 48 plies (6 mm plate thickness). Two different laminate layups are tested: a quasi-isotropic arrangement and a unidirectional arrangement. The experimental setup consists of 152 mm×152 mm square plates impact loaded in an outof-plane configuration using a high-speed gas gun. Impact speeds range from 1 m/s to 30 m/s. Real-time imaging of the laminate out-of-pane displacement is performed using the lateral shearing interferometer of coherent gradient sensing (CGS) in conjunction with high-speed photography. Onset of dynamic delamination can be observed, and quantities such as delamination speeds (in some cases up to 1800 m/s) are measured and reported. A brief comparison is made with dynamic fracture experiments of the same material conducted in a separate study.

Item Type:Article
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Rosakis, A. J.0000-0003-0559-0794
Additional Information:© Society for Experimental Mechanics, Inc. 1997. Received: 31 October 1997. Revised: 08 April 1997. The support of ONR Grant N00014-90-J-1340 is gratefully appreciated.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-90-J-1340
Issue or Number:3
Record Number:CaltechAUTHORS:20170408-161418553
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Official Citation:Lambros, J. & Rosakis, A.J. Experimental Mechanics (1997) 37: 360. doi:10.1007/BF02317432
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76152
Deposited By: 1Science Import
Deposited On:14 Jul 2017 18:41
Last Modified:15 Nov 2021 16:57

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