Monday  |  Executive CD  |  05:20 PM–05:40 PM

#19757, Experimental Investigation of Sensing in Polymer Boned Energetic Materials with MWCNTs under High Frequency Vibrations

This experimental investigation is to gain an insight into the strain and damage sensing abilities of binder with multiwalled carbon nanotubes (MWCNTs) and conductive grains under high frequency vibrations. Self-sensing is achieved by the addition of MWCNTs in the binder system where networks of MWCNTs provide a piezoelectric behavior when are subjected to compressive loading. Polydimethylsilioxane (PDMS) an elastomer is a commonly used binder in a polymer bonded energetic materials. Multi walled carbon nanotubes (MWCNTs) system to improve the sensing abilities of the material. Exploratory results show that PDMS has no sensing abilities as PDMS is a non-conducting material thus electrical signal is not reliable and is regarded as noise. Samples with MWCNTs show sensing capabilities, samples that have MWCNTs and PDMS show strain sensing. Samples that have Ammonium Perchlorate (AP) as energetic material in the material system show damage sensing. These preliminary investigative results must be thoroughly studied to understand the sensing ability of polymer bonded energic materials with MWCNTs at kHz range of frequency.

Viswajit Talluru   Virginia Polytechnic Institute and State University
Shivansh Shah   Virginia Polytechnic Institute and State University
Gary Seidel   Virginia Polytechnic Institute and State University