| Search |
| [Next Page] |
Unconventional Shaped Charges
Less standoff would normally produce a larger entry hole, since there is less distance/time for elon ... |
15-7-2015 at 05:16
by: Hennig Brand |
Unconventional Shaped Charges
Very interesting thesis, thanks.
Here is another one regarding EFP penetration of concrete:
[ ... |
14-7-2015 at 14:35
by: Hennig Brand |
Unconventional Shaped Charges
For 0.6g of copper, density 8.96g/cc :
0.6g / 8.96g/cc = Volume = 4/3 * pi * r^3
r = 0.25 cm
... |
14-7-2015 at 07:06
by: Hennig Brand |
Unconventional Shaped Charges
Yeah, I remember now that you mention it. That amount of penetration and holes that small in diamete ... |
13-7-2015 at 16:40
by: Hennig Brand |
Unconventional Shaped Charges
According to "Fundamentals of Shaped Charges", by Walters and Zukas, for a given explosive charge th ... |
13-7-2015 at 16:18
by: Hennig Brand |
Unconventional Shaped Charges
I had that thought at first, but when I looked at it more closely and thought about it a bit I now t ... |
13-7-2015 at 15:29
by: Hennig Brand |
Has anyone made a EBW setup.
Sorry about that, I noticed your post earlier and then got side tracked by something else.
The b ... |
13-7-2015 at 14:28
by: Hennig Brand |
Unconventional Shaped Charges
I believe 6.25mm is the radius of curvature, the diameter is 11.5mm.
I saw that EFP product with ... |
13-7-2015 at 08:22
by: Hennig Brand |
Has anyone made a EBW setup.
Nice compact looking fireset you have there!
Since the trigger pulse is very low current and high ... |
13-7-2015 at 07:05
by: Hennig Brand |
Unconventional Shaped Charges
Nice compact looking fireset you have made and another successful shaped charge test as well!
Coul ... |
13-7-2015 at 06:47
by: Hennig Brand |
Spherical Cap or Spherical Dome not Hemisphere
I thought that hemisphere was likely not the correct term to use to describe our EFP liners and it l ... |
12-7-2015 at 09:26
by: Hennig Brand |
Unconventional Shaped Charges
Your plastic explosive looks good and it sounds like you did a much more thorough job of mixing and ... |
12-7-2015 at 09:06
by: Hennig Brand |
Has anyone made a EBW setup.
I would spent a little money and get suitable capacitors with suitable voltage, ESR, ESL and current ... |
12-7-2015 at 07:08
by: Hennig Brand |
Unconventional Shaped Charges
It is a bit deeper than I thought, the deepest hole is approaching 1/4", but its diameter is much sm ... |
12-7-2015 at 03:48
by: Hennig Brand |
Unconventional Shaped Charges
The copper for the liner was from a used piece of copper pipe, which may have even had a thin film o ... |
11-7-2015 at 19:09
by: Hennig Brand |
Unconventional Shaped Charges
Thanks. This is the first shot since the one described earlier on this page of this thread, the othe ... |
11-7-2015 at 18:13
by: Hennig Brand |
EFP Powered by 87% ETN Putty Explosive Initiated by EBW, ETN, Detonator - Success Again
This test was performed in exactly the same way as the last, except that the target was 1/2" of stee ... |
11-7-2015 at 13:25
by: Hennig Brand |
Blasting Line / Transmission Line / Firing Line
Even regular lamp cord and speaker wire seem to have reasonably suitable specifications, especially ... |
9-7-2015 at 10:18
by: Hennig Brand |
Has anyone made a EBW setup.
The most important resistance variable other than the capacitor(s) in a reasonably well designed sys ... |
9-7-2015 at 03:14
by: Hennig Brand |
Has anyone made a EBW setup.
Using a lot of capacitance is pointless. The energy that is delivered to the bridgewire has to be de ... |
9-7-2015 at 00:11
by: Hennig Brand |
Has anyone made a EBW setup.
[rquote=411758&tid=23466&author=Gargamel]Concerning your capacitor banks:
Do you think it's ... |
8-7-2015 at 04:58
by: Hennig Brand |
Unconventional Shaped Charges
Look for posts by Nitro-Genes, he did quite a lot of experimenting with crystallization techniques, ... |
7-7-2015 at 10:32
by: Hennig Brand |
Unconventional Shaped Charges
I haven't put a lot of energy into controlling ETN crystal size and shape. I recrystallize ETN from ... |
7-7-2015 at 09:15
by: Hennig Brand |
Unconventional Shaped Charges
I should have added this above, but I lost my chance.
I just measured the density of the 87% ETN ... |
7-7-2015 at 07:01
by: Hennig Brand |
Unconventional Shaped Charges
Thanks, things are starting to come together.
I may not be doing a perfect job of annealing, but ... |
6-7-2015 at 05:25
by: Hennig Brand |
| [Next Page] |
