| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Understanding and Predicting Dynamic Behavior of Materials
|
| Presentation Title |
Controlled Fragment Impact Experiments for Initiation Response of PBXs |
| Author(s) |
Patrick Bowden, Andrew Schmalzer, John D. Yeager, Joseph Lichthardt, Alexander Mueller |
| On-Site Speaker (Planned) |
Patrick Bowden |
| Abstract Scope |
Fragment initiation of explosives is an important area of research for safety and explosive response scenarios. Experiments range from single, large, slow moving flyers to multiple, microscopic, fast moving particles. Determining the initiation criteria for target plastic-bonded explosive (PBX) materials is difficult because the interplay between fragment size/shape, incident angle and velocity create a highly complex variable set. To attempt to simplify this problem (and enable new hydrocode simulations), experiments were undertaken to design and parameterize a flyer system capable of launching multiple small flyers of a standardized size and shape. By creating a uniform fragment field, multi-wave interactions were probed. Additionally, with the large stochastic dataset in hand, insight into elucidating a James-type criterion for initiation was gained for various PBXs. Simulations using the CTH hydrocode were also performed to guide the experimental design and help analyze ignition criteria. |
| Proceedings Inclusion? |
Undecided |