| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Augmentation of Plasma-based Impulse Generation with Rapid Chemical Reactions |
| Author(s) |
Brian Patrick Thurston, Yu Mao, Troy Lewis, Anupam Vivek, Glenn S. Daehn |
| On-Site Speaker (Planned) |
Brian Patrick Thurston |
| Abstract Scope |
The use of a chemical explosive mixture to augment the Vaporizing Foil Actuator (VFA) and Laser Impact Welding (LIW) processes is introduced in this study. A liquid explosive known as Picatinny Liquid Explosive (PLX) was used to augment the capabilities of both the VFA and LIW processes. 304 stainless steel flyers 3mm thick driven by PLX augmented VFA and unaugmented VFA are compared. Similarly, 0.442mm thick Al3003 flyers driven by laser impact and PLX augmented laser impact are compared. In all cases a Photon Doppler Velocimetry (PDV) system was used to collect the velocity time profiles of the flyers. All PLX augmented experiments showed increases in both flyer acceleration and peak velocity over the same time scales as the unaugmented experiments. This indicates that the PLX provided impulse occurs at the same time as the VFA/laser impulse. The augmented VFA experiments showed a 28% velocity increase over the unaugmented experiments at 10kJ input energy. The augmented laser impact process exhibited peak flyer velocities 236% higher than laser impact using only the laser. Here we demonstrate that chemical augmentation is capable of significantly increasing flyer velocities for both VFA and LIW at the same input energies and under similar conditions. This development should expand the repertoire of flyer materials and thicknesses that can be impact welded by VFA and LIW. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |