| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Structure-Property Relationships in Molecular Crystal Deformation
|
| Presentation Title |
Quantitative Analysis of Granular Explosives through Examination of the Compaction Manufacturing Process |
| Author(s) |
Dimitrios Samaras, Oliver Blackman, Matthew Maisey, Paul Ryan, Soraia Pimenta, Maria Charalambides |
| On-Site Speaker (Planned) |
Maria Charalambides |
| Abstract Scope |
Granular explosives are used in military and civilian applications, serving as secondary explosives in detonator devices. Ensuring the safe handling of these explosives requires an understanding of their response under external stimuli. This response is primarily governed by the inhomogeneities which develop during the manufacturing process. Herein, we characterise the mechanical properties of granular explosives produced by compacting pentaerythritol tetranitrate (PETN) explosive crystals, modelling the powder ensemble as a continuum. The Drucker-Prager Cap material model is employed in Finite Element (FE) software to simulate the compaction process. The calibration of the model is performed through experiments on inert energetic crystals identified to mimic the mechanical properties of PETN. The parameters serve as inputs for our FE analysis, where the relative density distribution is outputted. The objective is to derive quantitative results for the homogenized microstructure and establish correlations with its sensitivity.
UK Ministry of Defence © Crown owned copyright 2024/AWE |
| Proceedings Inclusion? |
Planned: |