BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Shocking sand: Granular materials under extreme conditions - James
  Perry\, SMF Group\, Cavendish Laboratory
DTSTART:20150312T160000Z
DTEND:20150312T170000Z
UID:TALK56910@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:Physics tends to deal with point particles\, continua\, repeat
 ing patterns\, neat formulae and symmetries. Granular systems sit in the a
 wkward middle ground - grains are too complex and too numerous to model in
 dividually\, yet too large and too few to be called a continuum. As such\,
  they are a treasure trove for experimentalists\, as feeding phenomenologi
 cal models with the right data is still arguably our best route forward.\n
 \nLooking at the very high-rate response of granular systems is fruitful b
 oth as an applied exercise\, with applications ranging from earthquakes an
 d asteroid impacts to defence\, and as a purely scientific endeavour. At v
 ery high stresses\, the complexities of compaction behaviour can be ignore
 d\, and standard thermodynamics describes the system rather well. Therefor
 e\, by gradually reducing the compaction stress and strain rate\, we may h
 ave a handle for gradually 'turning on' the huge range of interconnected p
 henomena associated with granular systems.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory
END:VEVENT
END:VCALENDAR