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From: arthur@Eng.Sun.COM (Arthur Leung)
Newsgroups: sci.military
Subject: RE: Blasting Sadam's Bunker(s)
Message-ID: <1991Feb26.011835.5562@cbnews.att.com>
Date: 26 Feb 91 01:18:35 GMT
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From: arthur@Eng.Sun.COM (Arthur Leung)
i found this in february 18, 1991 issue of aviation week:

-- arthur

--------

US Speeds Development of Kinetic Weapons Designed to Penetrate
Underground Command Centers
(Lancaster, Calif)

.....
One Defense Dept.-sponsored test involved accelerating a 300lb.
metal rod to about Mach 1.6, then driving it into a simulated
hardened bunker.  Data from the test indicated the rod penetrated
several layers of compacted soil separated by 2-ft.-thick
sections of reinforced concrete above an underground room.  The
rod continued through the room's concrete roof and floor, and
finally stopped almost 100ft. into the ground - below the bunker's
floor.

High-speed penetrators were developed originally to deliver nuclear
weapons.  This technology develop[ed into what Sandia National
Laboratories officials call "terradynamics" studies.

Analysis and tests of Earth penetrators led to development of
efficient body shapes and materials, and definition of the
impact velocity required to penetrate specific materials to a
desired depth.  Sandia scientists also have developed computer
models capable of predicting impact loads, deformations and
material failures.


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