Single and double shock initiation modelling for high explosive materials in last three decades

14th International Symposium on Advanced Materials

Hussain, T.^1 ; Yan, Liu^2

Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan^1

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing

100081, China^2

关键词: Chemical decomposition;    High explosives;    Meta-stable state;    Physics-based models;    Shock initiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/146/1/012041/pdf
DOI  :  10.1088/1757-899X/146/1/012041

来源: IOP

【 摘 要 】

The explosives materials are normally in an energetically metastable state. These can undergo rapid chemical decomposition only if sufficient energy has first been added to get the process started. Such energy can be provided by shocks. To predict the response of these materials under impacts of shocks of different strengths and durations and at various conditions, mathematical models are used. During the last three decades, a lot of research has been carried out and several shock initiation models have been presented. The models can be divided into continuum based and physics based models. In this study the single and double shock initiation models presented in last three decades have been reviewed and the ranges of their application has been discussed.