Ultra-Low Cycle Fatigue and Fracture in Steel Structures (NEES-2005-0096)

<p><strong>Title: </strong>Ultra-Low Cycle Fatigue and Fracture in Steel Structures (NEES-2005-0096)</p> <p><strong>Year Of Curation: </strong>2011</p> <p><strong>Description: </strong>During earthquakes structural elements such as bracing members undergo a phenomenon called Ultra-Low Cycle Fatigue (ULCF), which is characterized by very few (lack of suitable micro-scale models to simulate ULCF and the computational requirements necessary implement the models for studying large structural components. This research aims to (1) identify and quantify the underlying failure mechanisms of earthquake-induced ULCF, (2) develop and implement models to simulate ULCF in steel structures (3) conduct large scale subassembly tests at earthquake loading rates to verify and demonstrate the models (4) apply the ULCF models to develop practical guidelines and recommendations for earthquake resistant design.</p> <p><strong>Award: </strong>http://www.nsf.gov/awardsearch/showAward?AWD_ID=0421492</p> <p><strong>PIs & CoPIs: </strong>Amit Kanvinde</p> <p><strong>Dates: </strong>November 15, 2004 - February 27, 2009</p> <p><strong>Organizations: </strong>University of California at Davis and Stanford University, CA, United States,,University of California, Berkeley, CA, United States,,University of California, Davis, CA, United States</p> <p><strong>Facilities: </strong>University of California at Davis and Stanford University, CA, United States,University of California, Berkeley, CA, United States</p> <p><strong>Sponsor: </strong>NSF - 0421492</p> <p><strong>Keywords: </strong>Ultra-Low Cycle Fatigue,Steel Structure</p> <p><strong>Publications:</strong></p> <p>"Large-Scale Testing and Simulation of Earthquake-Induced Ultra Low Cycle Fatigue in Bracing Members Subjected to Cyclic Inelastic Buckling"</p> <p>"Exposed Column Base Connections Subjected to Axial Compression and Flexure"</p> <p>"Testing and Probabilistic Simulation of Ductile Fracture Initiation in Structural Steel Components and Weldments"</p> <nb:citations></nb:citations>