Comparison of Shock Loading traces obtained from PVDF stress gauges and VISAR

POSTER

Abstract

Parallel plate impact tests were performed on solid THV polymer (tetrafluoroethylene -- hexafluoropropylene -- vinylidene fluoride), as well as two well characterized polymers, PTFE and PMMA. Simultaneous time-resolved measurements at the interface between the polymer and fused silica were performed using PVDF stress gauges and VISAR probes. The effect of shielding to eliminate the effect of stress-induced polarization on the PVDF gauges is presented, and differences in the loading traces for the two measurement probes are discussed.

*This work was supported in part by ONR grant \#N00014-07-1-0760 and DTRA grant \# HDTRA-07-1-0018.

Authors

  • Christopher Neel

    • Georgia Inst. of Technology, Materials Science Dept.
    • Georgia Inst. of Technology, Matl Sci \& Eng. Dept.

  • Naresh Thadani

    • Georgia Inst. of Technology, Materials Science Dept.
    • Georgia Institute of Technology
    • School of Materials Science and Engineering, Georgia Institute of Technology
    • Georgia Inst. of Technology, Matl Sci \& Eng. Dept.