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EAS Remembers Wilfred D. (Bill) Iwan

11-02-20

Wilfred D. (Bill) Iwan, Professor of Civil Engineering, Emeritus, passed away on October 29, 2020. He was 85 years old. Dr. Bill Iwan received all his degrees from Caltech, B.S. in 1957, M.S. in 1958, and Ph.D. in 1961. He joined the Caltech faculty in 1964 and became Professor Emeritus in 2004. He served as the Executive Officer for Civil Engineering and Applied Mechanics, 1980-86. Dr. Iwan’s research focused on fundamental areas of mechanics, understanding and characterization of strong earthquake ground motion, analysis and monitoring of the response of structural systems subjected to extreme events, and public policy regarding disasters. His research achievements include the development of methods to represent complex nonlinear structures with simpler linear systems, the development of practical methods for earthquake-resistant design, and the development of simplified methods for the analysis of seismic isolation systems for critical equipment. In 1979, he proposed an earthquake early-warning system for urban regions. Dr. Iwan was elected to the National Academy of Engineering in 1999 “for research on seismic performance of structures, and for leadership in earthquake hazard mitigation and improvement of public safety.” He was a Distinguished Member and Fellow of the American Society of Civil Engineers (ASCE), which awarded him the Nathan M. Newmark Medal (1997), William H. Wisely Award (2006), and Theodore von Karman Medal (2013). In recognition of his distinguished service, the California Earthquake Safety Foundation awarded him the 2002 Alfred E. Alquist Medal “for his lifetime of service to the profession of structural engineering and its application to the safety of the people of California and the world". [Caltech story]

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Professor Iwan Honored by Earthquake Engineering Research Institute

08-07-14

Wilfred Iwan, Professor of Applied Mechanics, Emeritus, has been selected as an honorary member of the Earthquake Engineering Research Institute (EERI). Honorary memberships are awarded in recognition of sustained and outstanding contributions to the field of earthquake engineering. Professor Iwan’s research focuses on fundamental areas of mechanics, understanding and characterization of strong earthquake ground motion, analysis and monitoring of the response of structural systems subjected to extreme events, and public policy regarding disasters.

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Professor Iwan Elected to the Grade of Distinguished Member of the American Society of Civil Engineers

10-14-09

Congratulations to Professor Iwan who was elected to the grade of Distinguished Member of the American Society of Civil Engineers. This is in recognition of his research on seismic performance of structures, for leadership in earthquake hazard mitigation and improvement of public safety, and for service to the structural engineering and engineering mechanics professions.

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Wilfred Iwan Receives Bruce Bolt Medal

10-14-09

Wilfred Iwan, Professor of Applied Mechanics, Emeritus, has received the Bruce Bolt Medal. The medal is awarded jointly by the Consortium of Organizations for Strong Motion Observation Systems, Earthquake Engineering Research Institute and Seismological Society of America to recognize individuals worldwide whose accomplishments involve the promotion and use of strong-motion earthquake data and whose leadership in the transfer of scientific and engineering knowledge into practice or policy has led to improved seismic safety. Iwan is honored for his many accomplishments in advancing earthquake strong-motion monitoring networks and instrumentation in the US and internationally, his research accomplishments in earthquake engineering and engineering seismology, and his effective leadership roles in professional organizations to further the acquisition and application of strong-motion data.

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