Seeing Inside Shocked Plastic-Bonded Explosives

Dhanalakshmi Sellan, Lawrence Salvati, Siva Kumar Valluri, Dana D. Dlott, Xuan Zhou

Research output: Contribution to journalConference articlepeer-review

Abstract

A new method is described to study how microstructures within a plastic-bonded explosive (PBX) interact with shock waves to produce hot spots, and to identify the critical hot spots that grow into a deflagration. A unique feature of this method is that it allows us to see every crystal in the PBX during the shock. We used an HMX-based PBX fabricated into a wafer about one crystal thick so there are no crystals hidden from view. The wafer is embedded in a transparent polymer in a traveling wave geometry, and a microscope with a laser flyer launcher and a nanosecond camera is used to watch hot spots appear and grow so we can determine which microstructural elements favor or disfavor hot spots.

Original languageEnglish (US)
Article number320001
JournalAIP Conference Proceedings
Volume2844
Issue number1
DOIs
StatePublished - Sep 26 2023
Event22nd Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2022 - Anaheim, United States
Duration: Jul 10 2022Jul 15 2022

ASJC Scopus subject areas

  • General Physics and Astronomy

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