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SUMMARY:Size Effects on Tensile Strength and Failure Mechanisms of Carbon/
 Epoxy Composites - Professor Michael Wisnom\, University of Bristol
DTSTART:20110603T130000Z
DTEND:20110603T140000Z
UID:TALK30044@talks.cam.ac.uk
CONTACT:Ms Helen Gardner
DESCRIPTION:Size effects are important as results from small coupons are o
 ften used as the basis for design of large structures.  Strength of carbon
  fibre composites tends to decrease with specimen size\, and failure to ac
 count properly for this effect could lead to non-conservative designs.  Re
 sults will be presented of an experimental programme to investigate the ef
 fect of specimen size on the tensile strength and failure mechanisms of un
 notched and notched carbon fibre laminates. Finite element analysis using 
 cohesive zone interface elements is able to represent the experimentally o
 bserved damage development\, and gives excellent predictions for scaling e
 ffects on notched strength over a wide range of different laminates and si
 zes
LOCATION:Oatley Seminar Room\, Department of Engineering
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