Project DarkStar: Controlling Material Deformation

Executive Summary

The purpose of this project is to take the quantum leap from understanding to controlling dynamic material response. The scientific and technological achievements attained will enable a completely new paradigm for weapons physics and design and advance the U.S. national security posture.

Publications, Presentations, and Patents

Bjerke, G. J., M. Sevcik, D. J. Kline, R. Chavez Morales, H. E. Fletcher, M. D. Grapes, D. Amondson, J. L. Belof, K. T. Sullivan, and V. Eliasson. “Direct Ink Writing Fidelity Analysis Using Image Processing to Optimize Extrusion Parameters.” Gordon Research Conference on Energetic Materials. 2022.

Belof, J.L., W. Schill, H. Lorenzana, D. White, and R. Rieben. “Dynamical Stabilization of Shockwave-driven Material Interfaces via Machine Learning: Annihilation of Vortical Flow for the Taming of Richtmyer-Meshkov Instability.” American Physical Society, Shock Compression of Condensed Matter, Anaheim, CA. 11-15 July 2022.

Sterbentz, D.M., C. Jekel, D. White, S. Aubry, and J.L. Belof. “Design Optimization for Richtmyer-Meshkov Instability Suppression.” American Physical Society, Shock Compression of Condensed Matter, Anaheim, CA. 11-15 July 2022.

Armstrong, M.R., J. Nguyen, S. Aubry, W. Schill, J. L. Belof, and Hector Lorenzana. “Use of Shock Wavefront Curvature to Modulate RMI Jet Growth.” American Physical Society, Shock Compression of Condensed Matter, Anaheim, CA. 11-15 July 2022.

Nguyen, J., S. Aubry, M.R. Armstrong, A. Hoff, J.L. Belof, H. Lorenzana, M. Staska, and B. LaLone. “Modulation of Richtmyer-Meshkov Instability in Gas Gun Experiments.” American Physical Society, Shock Compression of Condensed Matter, Anaheim, CA. 11-15 July 2022.

Belof, J.L. "Phase Kinetics, Metastability and Compressibility Far from Equilibrium." Joint US/Japan High Energy Density Science Center Seminar, LLNL/Osaka 2022.

Sevcik, M., F. Wilson, G. Bjerke, D. J. Kline, R. Chavez Morales, M. D. Grapes, K. T. Sullivan, J. L. Belof, and V. Eliasson. "Direct Ink Writing Fidelity Analysis to Achieve High Quality Full Density Parts.'' Society for Experimental Mechanics Annual Conference, Pittsburgh, PA. 2022.

Kline, D.J., M.D. Grapes, G.C. Egan, B.M. English, E.A. Avalos, K.T. Sullivan and J.L. Belof. "In situ Characterization Techniques for Composition Identification and Reconstruction of Additively Manufactured Parts." NASA Contamination, Coatings, Materials and Planetary Protection. 2021.

Jekel, C.F., Y. Choi, D. White, and J.L. Belof. “Using Conservation Laws to Infer Deep Learning Model Accuracy of Richtmyer-Meshkov Instabilities.” The 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022, 5-9 June 2022, Oslo, Norway.

Sterbentz, D., C.F. Jekel, D. White, and J.L. Belof. “Design Optimization for Richtmyer-Meshkov Instability Suppression.” American Physical Society (APS) March Meeting 2022. March 14-18, 2022.

White, D., R. Rieben, and J.L. Belof. “Optimization of Material Interfaces for Control of Richtmyer-Meshkov Instabilities.” 10th International Conference on Numerical Methods for Multi-Material Fluid Flow (MULTIMAT 2022). Zurich, Switzerland. August 19-27, 2022.

Kline, D.J., M.D. Grapes, G.C. Egan, W.P. Bassett, K.T. Sullivan, J.L. Belof, and R.V. Reeves. "In situ Compositional and Morphological Characterization of Additively Manufactured Composites." Energ. Mater. Direct Ink Write Workshop, Doolittle Institute, 2021. LLNL-PRES-825862.

Kline, D.J., M.D. Grapes, G.C. Egan, B.M. English, E.A. Avalos, K.T. Sullivan, and J.L. Belof. "In situ Characterization Techniques for Composition Identification and Reconstruction of Additively Manufactured Parts." Contam. Coatings, Mater. Planet. Prot. Work. National Aeronautics and Space Administration, Greenbelt, MD. 2021. LLNL-PRES-828267.

Kline, D.J., M.D. Grapes, W.P. Bassett, G.C. Egan, B.W. White, K.T. Sullivan, J.L. Belof, and R.V. Reeves. "In situ Contactless Composition Characterization of Additively Manufactured Energetic Materials." Jt. Army-Navy-NASA-Air Force 43rd Propellant Explos. Dev. Charact. Symp., Johns Hopkins University, Columbia, MD. 2021. LLNL-PRES-829380.

Kline, D.J., M. Sevcik, F. Wilson, H. E. Fletcher, G. Bjerke, R. Chavez Morales, M. D. Grapes, G. C. Egan, D. K. Amondson, V. Eliasson, K. T. Sullivan, and J. L. Belof, "Diagnostics Development and Technology Transfer for a High-Quality Direct-Ink-Write Additive Manufacturing Process.'' International Pyrotechnics Society Proceedings. 2022.

Belof, J.L., M. Murialdo and B. Sadigh. "An Atomistic Theory of Nucleation: Self-Organization via Non-equilibrium Work and Fluctuations.'' J. Crystal Growth. (Accepted).

Kline, D.J., M.D. Grapes, R.C. Morales, G.C. Egan, J.D. Sain, Z.D. Doorenbos, H.E. Fletcher, E.A. Avalos, B.M. English, V. Eliasson, K.T. Sullivan and J.L. Belof. "In situ Laser Profilometry for Material Segmentation and Digital Reconstruction of a Multicomponent Additively Manufactured Part.'' Additive Manufacturing 102896 2022. https://doi.org/10.1016/j.addma.2022.102896

Sterbentz, D.M., C.F. Jekel, D.A. White, S.Aubry, and J.L. Belof. “Design Optimization for Richtmyer—Meshkov Instability Suppression at Dynamically Driven Perturbed Interfaces.” Phys. Fluids 34:082109 2022. https://doi.org/10.1063/5.0100100

Sevcik, M.J., G. Bjerke, F. Wilson, D. J. Kline, R. Chavez Morales, H.E. Fletcher, K. Guan, M.D. Grapes, K.T. Sullivan, J.L. Belof, and V. Eliasson. "Direct Ink Writing Fidelity Analysis Using Image Processing to Optimize Extrusion Parameters." 2022 Gordon Research Conference on Energetic Materials Manchester, NH. June 23,2022. LLNL-PROC-836660.