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SUMMARY:Experimental investigation of concrete under multiaxial compressio
 n and elevated temperatures - Mihail Petkovski (University of Sheffield)
DTSTART:20100528T140000Z
DTEND:20100528T150000Z
UID:TALK24720@talks.cam.ac.uk
CONTACT:Katerina Ondrova
DESCRIPTION:Concrete in massive structures such as dams\, nuclear reactor 
 vessels or large piers of long\nspan bridges\, is subjected to true multia
 xial stress conditions (1 ̸= 2 ̸= 3). These\nstructures are usually t
 reated as three-dimensional continua with generally non-linear\nrelationsh
 ip between load and deformation\, usually expressed in incremental form {
 Δ} =\n[D]{Δ"}\, where the operator [D]\, that links the stress and stra
 in increments\, is the tangent\nstiffness matrix of the material. When the
  material is loaded to peak stress levels\, [D]\nchanges gradually as a re
 sult of developing damage.\nThis seminar presents (i) mac2T \, Sheffield
 ’s unique facility for multiaxial compression\, (ii)\nan experimental in
 vestigation of concrete behaviour under multiaxial compression and (iii)\n
 a novel experimental method for determining the evolution and orientation 
 of localisation\nplanes in concrete from global stress-strain measurements
 .
LOCATION:Engineering Department - **LR3A**
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