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SUMMARY:ENAC Seminar Series by Dr A.-C. Ferche
DTSTART:20210824T150000
DTEND:20210824T160000
DTSTAMP:20261001T234514Z
UID:e3414720aef07b88fffcc3eb1eca9a576fcdcc7504bf9287bb3ac6a3
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Anca-Cristina Ferche\n15:00 – 16:00 – Dr Anca-Cristina 
 Ferche\nPostdoctoral researcher\, York University\, Canada\n\nFinite Eleme
 nt Modelling of Deteriorated Concrete Structures\n\nThe talk will explore 
 influential behavioural mechanisms that should be considered when modellin
 g the response of reinforced concrete structures\, whether they occur due 
 to deterioration mechanisms or due to loading protocol.\nIconic ancient st
 ructures prove concrete’s durability through time. Yet concrete is vulne
 rable to a number of factors causing premature deterioration. Among the de
 terioration mechanisms are endogenous chemical reactions such as alkali-si
 lica reactivity (ASR) that lead to expansion and cracking of concrete whic
 h\, in turn\, may result in cover spalling and corrosion of the embedded r
 einforcement. Depending on the level of distress\, oftentimes deteriorated
  structures require structural assessment to decipher observed behaviour\,
  estimate residual capacity\, and inform rehabilitation works.\nThe struct
 ural implications of the ASR-induced deterioration and the simultaneously 
 acting mechanisms that influence the response of damaged structures will b
 e examined. Focus will be placed on finite element modelling at a structur
 al scale. The approach developed treats reinforced concrete as an orthotro
 pic material based on a smeared rotating-crack model within the context of
  a total-load secant-stiffness macro-modelling framework.\nA recently deve
 loped crack-slip model suited for the analysis of structures subjected to 
 cyclic and reversed cyclic loading will also be presented. The crack-slip 
 mechanism is an energy dissipation source with a pronounced effect on elem
 ents subjected to high shear demand and for lightly reinforced structures.
  Not accounting for it may lead to dangerously unconservative estimates of
  capacity.\n\nShort bio:\nDr. Anca-Cristina Ferche is an Assistant Profess
 or in the Department of Civil\, Architectural and Environmental Engineerin
 g at the University of Texas at Austin. Dr. Ferche’s research is focused
  on the behaviour and modelling of reinforced concrete structures. Her res
 earch interests include the development of advanced computational procedur
 es for the performance assessment of reinforced and prestressed concrete s
 tructures\, assessment of the structural implications of concrete deterior
 ation mechanisms\, rehabilitation of existing concrete structures\, and mo
 delling the response of concrete structures subjected to extreme loading c
 onditions. They all speak to an overarching interest in contributing to th
 e development of robust concrete infrastructure. Dr. Ferche is developing 
 computational software tools for the analysis of concrete structures which
  are being used in academic and industry applications.
LOCATION:https://epfl.zoom.us/j/62346540366
STATUS:CONFIRMED
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