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WIP: Ari's Explosives Mod[message #308723] Mon, 06 August 2012 14:05 Go to next message
leyon is currently offline leyon

 
Messages:93
Registered:February 2011
Work in Progress: Ari's Explosives Mod

Hi there! I'm looking to make a modest item mod to deepen the ever-fun aspect of blowing things to hell. To that end, I am currently in the design phase of the mod and want to use this space to ask questions regarding real-world explosives from you military types. If you have any such experience, your advice would be invaluable.

1. How feasible is it to remove the explosive filler from a land mine / grenade / rpg / rocket? How about to putting it back in and reassembling it, fuze and all? I am planning to make a mod that rewards the 'using what you have' mentality, but I want to know if it's actually possible to hand-rig a landmine by yourself with a mine shell before putting the merges in. Most of my research so far indicates people are more likely to blow up the mine altogether instead of reclaiming the filler, and stuff like mortar rounds or 40mm HE seem to be a little too complicated to do by hand.

2. What is involved in the mathematics behind non-nuclear blast radius calculation? I haven't found any sources, but I'm not sure if explosives engineers use them to begin with, as opposed to 'this has a lot of energy, let's back up a bit more'.

Thanks for the answers, I will have more later!

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Corporal 1st Class
Re: WIP: Ari's Explosives Mod[message #308752] Tue, 07 August 2012 04:49 Go to previous messageGo to next message
usrbid is currently offline usrbid

 
Messages:1503
Registered:December 2008
#1 It can be done with claymores for sure. The explosive putty is actually a really good fire source, it burns with a low flame and can be used to heat meals. After burning, the explosive turns black and becomes very sensitive to physical energy, meaning it explodes when you hit it with a hammer, or throw it maybe, so you need to know that and be careful.

I have not disassembled RPG rockets, they seem to be well assembled and don't naturally lend themselves to disassembly.

You can disassemble most hand grenades, although I didn't try it myself, but I have seen people do it.

I have no experience with 40mm grenades.

One thing which may not work is take the explosive charge from one system and use it for another e.g. take a hand grenade charge and use it in a claymore.

#2 Maybe there is some mathematics, however from my experience, the results may vary widely based on the circumstances.

For example you can tenderize steak meat with a very small C4 charge where both the meat and the charge are submerged in water and the blast is somehow redirected toward the meat eith e.g. a heavy steel plate.

If you try the same in a dirt hole, you get an undesirable result, the meat will be torn apart and mixed with the dirt, and become mostly not edible.

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Sergeant Major

Re: WIP: Ari's Explosives Mod[message #308755] Tue, 07 August 2012 05:14 Go to previous messageGo to next message
leyon is currently offline leyon

 
Messages:93
Registered:February 2011
Ah, thanks for that, Dieter! This will be very helpful.

1. I have noticed there are quite a few different filler weights depending on the type of landmine / grenade - most of them carry around 50g or so of explosive filler, whereas landmines can carry up to half a kilo (for bounding mines) of Comp B. / TNT, which is pretty crazy. I might have to take a few.. shall we say, 'creative' liberties about reusing charges. Smile

2. Ah, are there any uniform measurements, though? Like something engineers would use to describe the kill zone for a particular weight of explosives? I.e. TNT - 1 pound - 5 meter radius or something similar?

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Corporal 1st Class
Re: WIP: Ari's Explosives Mod[message #308758] Tue, 07 August 2012 09:03 Go to previous messageGo to next message
usrbid is currently offline usrbid

 
Messages:1503
Registered:December 2008
Ari_Lazarus
2. Ah, are there any uniform measurements, though? Like something engineers would use to describe the kill zone for a particular weight of explosives? I.e. TNT - 1 pound - 5 meter radius or something similar?


Not that I know of. Pretty much most of the time someone who has done this before will determine what they believe is safe. Sometimes there are accidents, some make it on YouTube.

There is a Mythbusters episode where they test explosive shockwave expansion in air and under water. They had some ideas of what to expect from the people who instructed them, however they still discovered a few surprises.

Also Mythbusters were the ones who shot a cannon ball through a residential neighborhood by accident, not far from where I live really.

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Sergeant Major

Re: WIP: Ari's Explosives Mod[message #310695] Thu, 27 September 2012 07:47 Go to previous messageGo to next message
usrbid is currently offline usrbid

 
Messages:1503
Registered:December 2008
Bump.

Yo Ari_Lazarus, What's the update my man?

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Sergeant Major

Re: WIP: Ari's Explosives Mod[message #312737] Tue, 04 December 2012 01:04 Go to previous message
joemeier2 is currently offline joemeier2
Messages:4
Registered:July 2010
some scientific literature to this topic:

Goel, Manmohan Dass; Matsagar, Vasant A.; Gupta, Anil K.; Marburg, Steffen (2012): An Abridged Review of Blast Wave Parameters. In: Defence Science Journal 62 (5). Online verf

[Updated on: Tue, 04 December 2012 01:28] by Moderator

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