Event Details
Analytical Solutions for Fracture of Piezoceramics
Presenter: Prof. Nimal Rajapakse - Head, Department of Mechanical Engineering, The University of British Columbia
Supervisor:
Date: Fri, June 13, 2003
Time: 11:00:00 - 00:00:00
Place: EOW 430
ABSTRACT
Abstract:
Recent investigation of fracture of piezoceramics indicates that fracture load changes with applied electric field. Such experimental observations contradict the theoretical predictions based on linear piezoelectric fracture mechanics models. In this seminar, a theoretical model that accounts for domain switching of poled ceramics is presented to demonstrate the dependence of fracture toughness on applied electric field. The model is extended to examine the effect of crack closure.
Prof. Nimal Rajapakse received B.Sc (Honours, Civil Engineering) from the University of Sri Lanka in 1977 and M.Eng. (1981) and D.Eng. (1983) in Applied Mechanics from the Asian Institute of Technology. He received the Horst Leipholz Medal in 2000 in recognition of outstanding contributions to Engineering Mechanics research. He is a Fellow of the Canadian Academy of Engineering.
For further information please contact
Dr. Zuomin Dong at 721-8900 or Dr. Vijay Bhargava.