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SUMMARY:A boundary element formulation for stress concentration problems i
 n the context of couple-stress elasticity - Dr Gabriel Hattori\, CUED
DTSTART:20190524T143000Z
DTEND:20190524T150000Z
UID:TALK125158@talks.cam.ac.uk
CONTACT:Karen Mitchell
DESCRIPTION:The macroscopic behaviour of materials with non-homogeneous mi
 crostructure like composites\, bones and concrete is strongly influenced b
 y their material characteristic lengths. Standard continuum mechanics theo
 ries are inherently size independent. Couple-stress is the simplest genera
 lised continuum mechanics theory that can encompass the possibility of pre
 dicting size effects.Its origins date back to the early works of the Cosse
 rat brothers\, and has attracted renewed attention from researchers recent
 ly. In this work\, we derive a new set of fundamental solutions in closed 
 form to be used conjointly with the boundary element method (BEM). A new b
 oundary integral equation arises to obtain the moments and rotations intro
 duced by the couple-stress formulation. We validate our proposed approach 
 with\nanalytical results obtained by Mindlin.\n
LOCATION: Cambridge University Engineering Department\, LT6
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