A Study of Fragmentation in a Ni-Al Structural Energetic Material

POSTER

Abstract

A study of fragmentation behavior of a Ni-Al structural energetic material was undertaken to determine fragment size and distribution as well as study the impact of material microstructure on the fragmentation process. Rings were fabricated from a nearly 100{\%} TMD Ni-Al structural energetic material and subjected to explosive fragmentation experiments. Fragments were recovered for subsequent analysis; PDV velocity data was concurrently collected. Recovered fragments show negligible ductility suggesting that brittle fracture behavior dominates the fragmentation process. Quantitative microscopy and comparisons with existing fragmentation models are presented.

Authors

  • B. Aydelotte

    Georgia Institute of Technology, Materials Science and Engineering, 771 Ferst Drive, N.W., Atlanta, GA, 30332-0245, Georgia Institute of Technology

  • C.H. Braithwaite

    Fracture and Shock Physics, SMF Group, Cavendish Laboratory, JJ Thomson, Fracture and Shock Physics, SMF Group, Cavendish Laboratory

  • N.N. Thadhani

    Georgia Institute of Technology, Georgia Institute of Technology, Materials Science and Engineering, 771 Ferst Drive, N.W., Atlanta, GA, 30332-0245

  • M. Trexler

    United States Army Research Laboratory

  • David Williamson

    Fracture and Shock Physics, SMF Group, Cavendish Laboratory, JJ Thomson Ave., Cambridge, CB3 0HE, United Kingdom, University of Cambridge, Fracture and Shock Physics, SMF Group, Cavendish Laboratory