BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Mechanics affecting the ballistic limit of thin metal plates - Dr 
 Benjamin P Russell\, CUED
DTSTART:20150227T140000Z
DTEND:20150227T150000Z
UID:TALK57039@talks.cam.ac.uk
CONTACT:Ms Helen Gardner
DESCRIPTION:Multi-impact of projectiles on thin 304 stainless steel plates
  is investigated to assess the degradation of ballistic performance\, and 
 to characterise the inherent mechanisms. Assessment of ballistic degradati
 on is by means of a double-impact of rigid spheres at the same site on a c
 ircular clamped plate. The limiting velocity of the second impact\, will b
 e altered by the velocity of the antecedent impact. Finite element analyse
 s were used to elucidate experimental results and understand the underlyin
 g mechanisms that give rise to the performance degradation. The effect of 
 strength and ductility on the single and multi- impact performance was als
 o considered. The model captured the experimental results with excellent a
 greement. Moreover\, the material parameters used within the model were ex
 clusively obtained from published works with no fitting or calibration req
 uired. An attempt is made to quantify the elevation of the ballistic limit
  of thin plates by the dynamic mechanism of travelling hinges.
LOCATION:Oatley Seminar Room\, Department of Engineering
END:VEVENT
END:VCALENDAR