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SUMMARY:Assessing the Impact Energy Absorbing Properties of Composite and 
 Sandwich Materials - Dr J P Dear\, Department of Mechanical Engineering\, 
 Imperial College\, London
DTSTART:20060302T160000Z
DTEND:20060302T170000Z
UID:TALK4720@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:The air-born pressure wave from an explosion is often accompan
 ied by flying debris of different masses and velocities. This is a particu
 lar problem when structures need to be lightweight and there is a requirem
 ent for the structure designed to incorporate features to absorb and dispe
 rse the impact energy of flying debris. In relation to this\, my group hav
 e been studying the impact effects on lightweight composite and other mate
 rials. This for a range of different types of impact threat from High Velo
 city / Low Mass (HV/LM) projectiles (1 g to 175 g for velocities up to 250
  m s-1) through to Low Velocity / High Mass (LV/HM) projectiles (3 kg up t
 o 7 m s-1). Different types of material evaluated include composite and sa
 ndwich materials having honeycomb and skin material that are metallic\, co
 mposite or a mixture of both. Also\, investigated are the effects of diffe
 rent holding and support arrangements for these materials and the effect o
 f the different frontal profiles of impactors.
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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