BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Forensic analysis of eccentrically braced frame fracture in the 20
 11 Christchurch Earthquake: Multi-scale simulations\, tests\, and findings
 . - Professor Amit Kanvinde - University of California\, Davis
DTSTART:20150522T140000Z
DTEND:20150522T150000Z
UID:TALK58916@talks.cam.ac.uk
CONTACT:Lorna Everett
DESCRIPTION:The Christchurch Earthquake of 22nd February\, 2011 revealed t
 he first field fractures observed worldwide in Eccentrically Braced Frames
  (EBFs). These fractures are surprising because they occurred in the “fu
 se” region of a system that is otherwise considered highly ductile. The 
 fractures have global implications for seismic design\, since design stand
 ards in New Zealand are as stringent as those in the United States\, Europ
 e\, Japan\, and elsewhere. The seminar will present a comprehensive study 
 that examines these fractures forensically\, with the objective of providi
 ng an understanding of the various factors that contributed to fracture. T
 he study is based on samples of the fractured links that were salvaged fro
 m the fractured frames. The study spanned several scales\, scientific meth
 ods\, and aspects of behavior including: (1) material testing (2) frame si
 mulations of the entire structure (3) continuum finite element simulations
  of the failed regions\, and (4) micromechanics-based models for simulatin
 g fracture. When integrated\, findings from these various research compone
 nts provide a compelling\, yet nuanced understanding of the EBF fractures.
  Perhaps more importantly\, the study features an “end-to-end” simulat
 ion of a structural system across various scales\, with the benefit of mea
 sured material data and observed structural response. Thus\, it provides a
  unique opportunity to examine the advances and the challenges in hi-fidel
 ity simulation of fracture in structures. The seminar will address these m
 ethodological challenges in addition to the practical aspects of the EBF f
 racture. 
LOCATION:Cambridge University Engineering Department\, LR5
END:VEVENT
END:VCALENDAR