Skip to main content Accessibility help
×
Home

Overview: High Speed Dynamics and Modelling as It Applies to Energetic Solids

  • J. Covino (a1), S. A. Finnegan (a1), O. E. R Heimdahl (a1), A. J. Lindfors (a1) and J. K. Pringle (a1)...

Abstract

This paper discusses experimental techniques and modelling tools used to characterize energetic solids subjected to dynamic deformation and shock. Critical experiments have been designed to study shock response and impact sensitivity of energetic materials. For example, a simplified two dimensional experiment has been developed to study the critical phenomena involved in delayed detonation reactions (XDT). In addition, wedge tests are used to obtain equation-of-state data. Coupled with hydrocodes, these experiments give us an in-depth understanding of the response of energetic materials subjected to shock loading. A coupled methodology using both experimental and modelling tools is presented. Consisting of three parts, it addresses all possible responses to fragment impact. The three parts are: (1) Fragment impact modelling (hydrocodes and empirically based codes); (2) Experiments to obtain accurate data for predicting prompt detonation; and (3) Tests with planar rocket motor models to explore mechanisms related to bum reaction thresholds and degree of violence. This methodology is currently being used in weapon design and munitions hazard assessments.

Copyright

References

Hide All
1. Lundstrom, E. A., Proc. 1989 JANNAF Propulsion Systems Hazards Subcommittee Meeting, CPIA Publication 477, Vol.1, pp. 101110, (February 1989).
2. Naval Weapons Center. Evaluation of Forest Fire Burn Model of Reaction Kinetics of Heterogeneous Explosives, by Lundstrom, E. A.. China Lake, CA, May 1988. (NWC TP 6898).
3. Joint Technical Coordinating Group for Munitions Effectiveness. Penetration Equations Handbook or Kinetic Energy Penetrators. Tinker AFB, Okla., JTCG, 1977, (61 JTCG/ME-77-16).
4. FATEPEN-2: Compact Fragment Penetration Model, VOLUMES I and II, Yatteau, J.D., Zernov, R.H. and Recht, R.F., (publication in process).
5. Selected Hugoniots, prepared by Group GMX-6, Los Alamos Scientific Laboratory, Report LA-4167-MS, Los Alamos, NM (May 1969).
6. Stinecipher, M. M., Seventh Symposium (International) on Detonation, Annapolis, Maryland, pp. 801810. NSWC MP 82–334, June 16–19 (1981).
7. Finnegan, S. A., Pringle, J. K., Schulz, J. C., and Alexander, M. D., Proc. 1990 JANNAF Propulsion Systems Hazards Subcommittee Meeting, CPIA Pub. 538, pp. 1324 (April 1990).
8. Finnegan, S. A., Schulz, J. C., Pringle, J. K., and Lindfors, A. J., Proc. 1991 JANNAF Propulsion Systems Hazards Subcommittee Meeting, CPIA Pub. 562, pp. 399408 (March 1991).
9. Finnegan, S. A., Pringle, J. K., Heimdahl, O. E. R., and Schulz, J. C., Proc. 1992 JANNAF Propulsion Systems Hazards Subcommittee Meeting, CPIA Pub. 582, pp. 267283 (April 1992).
10. Swift, H. F., Preonis, D. D. and Turpin, W. C., Rev. Sci. Instr. 41, 746 (1970).

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed