Integrated rheology model: Explosive Composition B-3
Abstract
Composition B-3 (Comp B-3) is a high explosive formulation composed of 60/40wt% RDX (1,3,5-trinitroperhydro-1,3,5-triazine) /TNT (2,4,6 trinitrotoluene). Above approximately 78°C this formulation partially melts to form a multiphase system with solid RDX particles in a molten TNT matrix. This multiphase system presents a number of phenomena that influence its apparent viscosity. In an earlier study explosive Composition B-3 (Comp B-3, 60/40wt% RDX/TNT) was examined for evidence of yield stress using a non-isothermal falling ball viscometer and a yield stress model was proposed in this paper. An integrated viscosity model suitable for use in computational fluid dynamics (CFD) simulations is developed to capture the transition from a heterogeneous solid to a Bingham viscoplastic fluid. This viscosity model is used to simulate the motion of imbedded spheres falling through molten Comp B-3. Finally, comparison of the simulations to physical tests show agreement between the positions predicted by the model and the measured locations of the spheres as a function of temperature between 90C and 165C.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1441324
- Report Number(s):
- LA-UR-17-31436
Journal ID: ISSN 0737-0652
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Energetic Materials
- Additional Journal Information:
- Journal Volume: 36; Journal Issue: 4; Journal ID: ISSN 0737-0652
- Publisher:
- Taylor & Francis
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Bingham plastic; molten; multiphase flow; viscosity; yield stress
Citation Formats
Davis, Stephen M., Zerkle, David K., Smilowitz, Laura B., Henson, Brian F., Suvorova, Natalya A., and Remelius, Dennis K. Integrated rheology model: Explosive Composition B-3. United States: N. p., 2018.
Web. doi:10.1080/07370652.2018.1451573.
Davis, Stephen M., Zerkle, David K., Smilowitz, Laura B., Henson, Brian F., Suvorova, Natalya A., & Remelius, Dennis K. Integrated rheology model: Explosive Composition B-3. United States. https://doi.org/10.1080/07370652.2018.1451573
Davis, Stephen M., Zerkle, David K., Smilowitz, Laura B., Henson, Brian F., Suvorova, Natalya A., and Remelius, Dennis K. 2018.
"Integrated rheology model: Explosive Composition B-3". United States. https://doi.org/10.1080/07370652.2018.1451573. https://www.osti.gov/servlets/purl/1441324.
@article{osti_1441324,
title = {Integrated rheology model: Explosive Composition B-3},
author = {Davis, Stephen M. and Zerkle, David K. and Smilowitz, Laura B. and Henson, Brian F. and Suvorova, Natalya A. and Remelius, Dennis K.},
abstractNote = {Composition B-3 (Comp B-3) is a high explosive formulation composed of 60/40wt% RDX (1,3,5-trinitroperhydro-1,3,5-triazine) /TNT (2,4,6 trinitrotoluene). Above approximately 78°C this formulation partially melts to form a multiphase system with solid RDX particles in a molten TNT matrix. This multiphase system presents a number of phenomena that influence its apparent viscosity. In an earlier study explosive Composition B-3 (Comp B-3, 60/40wt% RDX/TNT) was examined for evidence of yield stress using a non-isothermal falling ball viscometer and a yield stress model was proposed in this paper. An integrated viscosity model suitable for use in computational fluid dynamics (CFD) simulations is developed to capture the transition from a heterogeneous solid to a Bingham viscoplastic fluid. This viscosity model is used to simulate the motion of imbedded spheres falling through molten Comp B-3. Finally, comparison of the simulations to physical tests show agreement between the positions predicted by the model and the measured locations of the spheres as a function of temperature between 90C and 165C.},
doi = {10.1080/07370652.2018.1451573},
url = {https://www.osti.gov/biblio/1441324},
journal = {Journal of Energetic Materials},
issn = {0737-0652},
number = 4,
volume = 36,
place = {United States},
year = {Tue Mar 20 00:00:00 EDT 2018},
month = {Tue Mar 20 00:00:00 EDT 2018}
}
Web of Science
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