Experimental investigation of dynamic delamination in thick polymeric composite laminates

Ares J. Rosakis, John Lambros, Michael P. Karyeaclis

Research output: Contribution to journalConference articlepeer-review


In this work we present some preliminary results of optical experiments performed on dynamically deforming thick polymeric composite laminate plates. The composites used for this study are graphite-epoxy fiber reinforced composite plates, consisting of 48 plies (6mm inch thickness) in a quasi-isotropic arrangement. The plates are impact loaded in an out-of-plane configuration using a gas gun. Impact velocities are of the order of 1m/s to 30m/s. The lateral shearing interferometer of Coherent Gradient Sensing (CGS), in conjunction with high speed photography, is used to obtain real time interferograms of the out-of-plane deformation of the laminate. Both the elastic behavior of the laminate and the deformation following the onset of dynamic delamination are observed. Quantities such as the speed of delamination are measured and presented.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalAmerican Society of Mechanical Engineers, Applied Mechanics Division, AMD
StatePublished - 1994
Externally publishedYes
EventProceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA
Duration: Nov 6 1994Nov 11 1994

ASJC Scopus subject areas

  • Mechanical Engineering


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