Failure diameter of confined explosive rods

Partom, Yehuda
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p829
Academic Journal
We use our hydroreactive code to compute the failure diameter (FD) of confined PBX-9502 rods. First we calibrate our reaction model to match the standard pop-plot. Next we validate the calibration by reproducing the experimentally determined unconfined FD. Then we compute FD as a function of confinement thickness (CT) for three confinement materials: light (PMMA), medium (aluminum) and heavy (copper). We find that light confinement has no effect. For medium and heavy confinements we find, as expected, that FD decreases when CT increases. But for each material there is a lower limit to FD no matter how thick the confinement. We compare our results to data by Ramsay, obtained in slab symmetry, and agreement is reasonable.


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