Observation of Dynamic Adhesive Behavior Using High-Speed Phase Contrast Imaging

  • Shane PaulsonEmail author
  • Nesredin Kedir
  • Tao Sun
  • Kamel Fezzaa
  • Wayne Chen
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


Composite sandwich panels provide an increase in buckling resistance to thin composite plates and shells, leading to widespread use in a variety of applications such as boat hulls, rotor blades, and rocket casings. Past research has shown that delamination between the face sheets and core of composite sandwich panels occurs under a variety of both dynamic and quasi-static load conditions. While this failure mechanism has been identified and observed, existing research has not fully investigated the mechanisms behind this adhesive failure. In this study, a carbon fiber bar was adhered using JB Weld epoxy to a variety of substrates. Bulk polymer substrates included polycarbonate, ultra-high molecular weight polyethylene, and Delrin®, while two PMI foam substrates were used: Rohacell® WF200 and Rohacell® HERO200-HT. Experiment samples were impacted using a Kolsky bar apparatus to impart simple shear on the adhesive joint. The adhesive joint was observed in-situ using a synchrotron X-ray source in phase contrast imaging mode. The X-ray source was used in tandem with the Kolsky bar and high-speed camera. In order to introduce simple shear in the adhesive joint, the Kolsky bar was used to impact the carbon fiber bar with an impact velocity of ~7 m/s. Adhesive failure was observed in each of the bulk polymer samples, but no failure was seen in the PMI foam samples.


Composite Sandwich Adhesive Dynamic behavior Phase contrast imaging 


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Copyright information

© Society for Experimental Mechanics, Inc. 2020

Authors and Affiliations

  • Shane Paulson
    • 1
    Email author
  • Nesredin Kedir
    • 2
  • Tao Sun
    • 3
  • Kamel Fezzaa
    • 3
  • Wayne Chen
    • 4
  1. 1.School of Aeronautics and Astronautics EngineeringPurdue UniversityWest LafayetteUSA
  2. 2.School of Materials EngineeringPurdue UniversityWest LafayetteUSA
  3. 3.Advanced Photon Source (Sector 32)Argonne National LaboratoryLemontUSA
  4. 4.School of Aeronautics and Astronautics Engineering & School of Materials EngineeringPurdue UniversityWest LafayetteUSA

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