The Simulation of Propellant Fragmentation under Different Temperature

DOI

10.2991/emim-16.2016.295How to use a DOI?

Keywords

Launch safety; Temperature; Compress and fracture

Abstract

The cold brittleness of propellant at the low temperature is the main cause of the large amount of fraction when launching and easily leads to safety accident. The discrete element method is described in this paper. The propellant particle in the charge is discretized into a multi-body system which consists of many rigidity balls connected with many springs. Combining with the mechanical parameter through mechanical tests at low temperature (-40?) and normal atmospheric temperature (20?) of propellant, the process of compress and fracture of gun propellant is simulated at low temperature and normal atmospheric temperature. The simulation results are similar to the test results. It is proved that when at low temperatures, the propellant charge is easily to be fractured and leads to safety accident.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chao Li
AU  - Xiaoting Rui
AU  - Yan Wang
AU  - Feifei Liu
PY  - 2016/04
DA  - 2016/04
TI  - The Simulation of Propellant Fragmentation under Different Temperature
BT  - Proceedings of the 6th International Conference on Electronic, Mechanical, Information and Management Society
PB  - Atlantis Press
SP  - 1455
EP  - 1459
SN  - 2352-538X
UR  - https://doi.org/10.2991/emim-16.2016.295
DO  - 10.2991/emim-16.2016.295
ID  - Li2016/04
ER  -