THERMAL SCIENCE

International Scientific Journal

DETERMINATION OF DETONATION PRODUCTS EQUATION OF STATE FROM CYLINDER TEST: ANALYTICAL MODEL AND NUMERICAL ANALYSIS

ABSTRACT
Contemporary research in the field of explosive applications implies utilization of hydrocode simulations. Validity of these simulations strongly depends on parameters used in the equation of state for high explosives considered. A new analytical model for determination of Jones-Wilkins-Lee (JWL) equation of state parameters based on the cylinder test is proposed. The model relies on analysis of the metal cylinder expansion by detonation products. Available cylinder test data for five high explosives are used for the calculation of JWL parameters. Good agreement between results of the model and the literature data is observed, justifying the suggested analytical approach. Numerical finite element model of the cylinder test is created in Abaqus in order to validate the proposed model. Using the analytical model results as the input, it was shown that numerical simulation of the cylinder test accurately reproduces experimental results for all considered high explosives. Therefore, both the analytical method for calculation of JWL equation of state parameters and numerical Abaqus model of the cylinder test are validated. [Projekat Ministartsva nauke Republike Srbije, br. III-47029]
KEYWORDS
PAPER SUBMITTED: 2012-10-29
PAPER REVISED: 2013-10-02
PAPER ACCEPTED: 2013-10-17
PUBLISHED ONLINE: 2013-11-16
DOI REFERENCE: https://doi.org/10.2298/TSCI121029138E
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE 1, PAGES [35 - 48]
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