<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this paper, a solid propellant grain concept was defined, obtained through additive manufacturing, which combines characteristics of multilayer elements with those of tubular geometric shape. The internal ballistics model adapted for such a solid propellant grain configuration allowed the calculations and highlighted the possibility of obtaining a pressure-time curve with a slightly increasing variation (progressive burning). The case studies carried out had as their starting point the existing physical configuration of the solid rocket motor for S-5K unguided ammunition. For the latter, PRTF-100 double base propellant was replaced by a composite propellant consisting of 87.3 wt% ammonium dinitramide, 10.7 wt% polycaprolactone and 2 wt% copper oxide.</p>
</abstract>

In this paper, a solid propellant grain concept was defined, obtained through additive manufacturing, which combines characteristics of multilayer elements with those of tubular geometric shape. The internal ballistics model adapted for such a solid propellant grain configuration allowed the calculations and highlighted the possibility of obtaining a pressure-time curve with a slightly increasing variation (progressive burning). The case studies carried out had as their starting point the existing physical configuration of the solid rocket motor for S-5K unguided ammunition. For the latter, PRTF-100 double base propellant was replaced by a composite propellant consisting of 87.3 wt% ammonium dinitramide, 10.7 wt% polycaprolactone and 2 wt% copper oxide.

Solid Propellant Grain Configuration with Progressive Burning Obtained Through Additive Manufacturing

International conference KNOWLEDGE-BASED ORGANIZATION

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this paper, a solid propellant grain concept was defined, obtained through additive manufacturing, which combines characteristics of multilayer elements...

Solid Propellant Grain Configuration with Progressive Burning Obtained Through Additive Manufacturing

Published Online: Jul 19, 2023

Page range: 38 - 42

DOI: https://doi.org/10.2478/kbo-2023-0073

Keywords
solid rocket motor, propellant grain, unsteady lumped internal ballistic model, additive manufacturing, FDM

© 2023 Marius-Ionuț Mărmureanu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Solid Propellant Grain Configuration with Progressive Burning Obtained Through Additive Manufacturing

Published Online: Jul 19, 2023

Page range: 38 - 42

DOI: https://doi.org/10.2478/kbo-2023-0073

Keywordssolid rocket motor, propellant grain, unsteady lumped internal ballistic model, additive manufacturing, FDM

© 2023 Marius-Ionuț Mărmureanu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
solid rocket motor, propellant grain, unsteady lumped internal ballistic model, additive manufacturing, FDM