12-21-2014, 01:57 AM | #11 |
Join Date: Feb 2005
Location: Berkeley, CA
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Re: Linear shaped charge to cut through DR 1900?
Hey, found some [url=http://www.aesys.biz/wp-content/uploads/data-sheet_13-224_liner-shaped-charge.pdf]real numbers[/url. A copper linear shaped charge with a weight of 0.5 lb/ft has a penetration (in an unstated material which I will guess is steel) of 0.7 inches, or about DR 50. The heaviest in there has a penetration of 3 inches, or DR 210, with a weight of 4.3 lb. We want 9 times that penetration, so based on the scaling law given (which appears to be a simplification, as the chart doesn't quite match), we multiply weight by 81 and wind up with a weight of ~350 lb/ft. We'll reduce that by 75% for better explosives, and by 50% for better penetration tech, and we wind up with a weight of around 45 lb/ft.
However, bear in mind that a significant fraction of the explosive energy will go into melted chunks of armor spraying through the other side of the armor, which will make a gigantic mess. This is only a problem if you want things intact, of course, but if you don't want it at least semi-intact, why are you boarding it at all? |
12-21-2014, 03:22 PM | #12 | ||
Join Date: Oct 2012
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Re: Linear shaped charge to cut through DR 1900?
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Any interest on the forum for gaming session recaps for a session where my character won the medal of honor? |
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Tags |
armor divisor, explosive, explosives required, shaped charge, weapon design |
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