Additive Manufacturing of Solid Rocket Propellant Grains

Chandru, R. Arun; Balasubramanian, Nikhil; Oommen, Charlie; Raghunandan, B. N.

doi:10.2514/1.b36734

Cited by 78 publications

(29 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The future works in this direction will be focused on the study of the rheology for the tested propellant formulations for their further 3D printing .…”

Section: Resultsmentioning

confidence: 99%

Characterization of Aluminum Powders: III. Non‐Isothermal Oxidation and Combustion of Modern Aluminized Solid Propellants with Nanometals and Nanooxides

Gromov

Sergienko

Popenko

et al. 2020

Propellants Explo Pyrotec

View full text Add to dashboard Cite

Aluminum powders were comprehensively described as the prospective ingredients of the modern propellants. The paper also studied the influence of micro-and nanopowders of metals (μ-Me and n-Me) and metal oxides (μ-MeO and n-MeO) on the burning process of modern aluminized propellant with HMX, CL-20, AP, and active binder. The following metal additives were used: Al, B, Zn, Ni, Co, and Mo. The effect of the following oxides CoO, V 2 O 5 , MnO 2, and Fe 2 O 3 was studied together with LiF. The combustion tests of modified propellant compositions were carried out in the Vielle bomb in a pressure range 2-10 MPa. n-Me addition resulted in an increase in the burning rate by 10 % for n-B, by 30-40 % for n-Ni and n-Mo in the studied pressure range. The introduction of n-Cu caused a burning rate to increase fivefold. n-Zn additive resulted in increasing of the propellant burning rate by 130 % and 260 % at 4 and 10 MPa, respectively. It was probably caused by the catalytic activity of those metals in the gaseous phase. The effect of complex additive was observed to be insignificant for additives with μ-Co 3 O 4 , μ-V 2 O 5 , μ-Fe 2 O 3 and n-Fe 2 O 3 . The burning rate of propellant with n-CuO additive value was higher by a factor of 4 in comparison with the basic formulation in the studied pressure range.

show abstract

“…The future works in this direction will be focused on the study of the rheology for the tested propellant formulations for their further 3D printing .…”

Section: Resultsmentioning

confidence: 99%

Characterization of Aluminum Powders: III. Non‐Isothermal Oxidation and Combustion of Modern Aluminized Solid Propellants with Nanometals and Nanooxides

Gromov

Sergienko

Popenko

et al. 2020

Propellants Explo Pyrotec

View full text Add to dashboard Cite

show abstract

“…(b) A layout of global morphology parameters (left) and the corresponding GAN-Synµ S. Foreground regions were "painted" with 1 in panel (a) while the background was painted with 0 . www.nature.com/scientificreports/ with the on-going micro-scale additive manufacturing (or micro 3D printing) techniques 13,21,27,66 , the present controlled micro-morphology generation technique can lead to the realization of microstructure-engineered materials, which is being pursued by the authors in ongoing work.…”

Section: Simulations Of Reactive Dynamics In Real and Synthetic Micromentioning

confidence: 99%

Deep learning for synthetic microstructure generation in a materials-by-design framework for heterogeneous energetic materials

Chun

Roy

Nguyen

et al. 2020

Sci Rep

View full text Add to dashboard Cite

the sensitivity of heterogeneous energetic (He) materials (propellants, explosives, and pyrotechnics) is critically dependent on their microstructure. initiation of chemical reactions occurs at hot spots due to energy localization at sites of porosities and other defects. emerging multi-scale predictive models of He response to loads account for the physics at the meso-scale, i.e. at the scale of statistically representative clusters of particles and other features in the microstructure. Meso-scale physics is infused in machine-learned closure models informed by resolved meso-scale simulations. Since microstructures are stochastic, ensembles of meso-scale simulations are required to quantify hot spot ignition and growth and to develop models for microstructure-dependent energy deposition rates. We propose utilizing generative adversarial networks (GAn) to spawn ensembles of synthetic heterogeneous energetic material microstructures. the method generates qualitatively and quantitatively realistic microstructures by learning from images of He microstructures. We show that the proposed GAn method also permits the generation of new morphologies, where the porosity distribution can be controlled and spatially manipulated. Such control paves the way for the design of novel microstructures to engineer He materials for targeted performance in a materials-by-design framework.

show abstract

“…The material can be extruded in nearly fully cured form (50-97 % curing in [121]), or curing can take place after deposition. Using the latter method, the composite propellant inks were printed in various grain geometries [122]. The principal composition of the material was 78 wt.% AP and 22 wt.…”

Section: Diw (Pen-type Robocasting Nanolithography)mentioning

confidence: 99%

“…Importantly, the withdrawal of vibration instantaneously reduced the flow rate, offering a useful method of geometric control. The authors successfully printed out structures made of several materials, including AlÀ polymer composites, with a nominal viscosity of up to 14000 Pa · s. Furthermore, the HTPB-based propellant with a high AP loading of up to 85 wt.% was 3D printed using the same [119] with permission from John Wiley & Sons, Inc.), (b) example of the geometry that was produced in [122], (c) influence of the inset filling on the burning rate of the printed strands for AP-based propellants [122], (d) schematic of 3D printing with ultrasonic vibrations (Reprinted from [123] with permission Elsevier).…”

Section: Diw (Pen-type Robocasting Nanolithography)mentioning

confidence: 99%

“…However, the grain geometries are limited by the mature manufacturing techniques, i. e., the central core is used, which should be removed after casting. Additive manufacturing will allow complex bore shapes, such as double anchor and star, to be easily and repeatedly produced [122,133]. Moreover, stereolithography allows the production of optimized grain shapes with an 18 % increase in packing densities [232].…”

Section: Progress In Additive Manufacturing Of Energetic Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Progress in Additive Manufacturing of Energetic Materials: Creating the Reactive Microstructures with High Potential of Applications

Muravyev

Моногаров

Schaller

et al. 2019

Propellants Explo Pyrotec

View full text Add to dashboard Cite

The modern “energetic‐on‐a‐chip” trend envisages reducing size and cost while increasing safety and maintaining the performance of energetic articles. However, the fabrication of reactive structures at micro‐ and nanoscales remains a challenge due to the spatial limitations of traditional tools and technologies. These mature techniques, such as melt casting or slurry curing, represent the formative approach to design as distinct from the emerging additive manufacturing (3D printing). The present review discusses various methods of additive manufacturing based on their governing principles, robustness, sample throughput, feasible compositions and available geometries. For chemical composition, nanothermites are among the most promising systems due to their high ignition fidelity and energetic performance. Applications of reactive microstructures are highlighted, including initiators, thrusters, gun propellants, caseless ammunition, joining and biocidal agents. A better understanding of the combustion and detonation phenomena at the micro‐ and nanoscale along with the advancement of deposition technologies will bring further developments in this field, particularly for the design of micro/nanoelectromechanical systems (MEMS/NEMS) and propellant grains with improved performance.

show abstract

Additive Manufacturing of Solid Rocket Propellant Grains

Cited by 78 publications

References 6 publications

Characterization of Aluminum Powders: III. Non‐Isothermal Oxidation and Combustion of Modern Aluminized Solid Propellants with Nanometals and Nanooxides

Characterization of Aluminum Powders: III. Non‐Isothermal Oxidation and Combustion of Modern Aluminized Solid Propellants with Nanometals and Nanooxides

Deep learning for synthetic microstructure generation in a materials-by-design framework for heterogeneous energetic materials

Progress in Additive Manufacturing of Energetic Materials: Creating the Reactive Microstructures with High Potential of Applications

Contact Info

Product

Resources

About