Topic:  Kinematic Hardening and the Bauschinger effect

Speaker: Prof. David Embury

　　　　　McMaster University, Canada

Time: 　15:00-16:30, Wednesday 26, Aug. 2009

Venue:  Rm. 468, Lee Hsun Building

 

The study of work hardening is a subject which links Materials Science and Mechanics However most models of work hardening developed in Materials Science are isotropic in form i.e they are scalar and relate to parameters such as dislocation density.By simple changes in strain path and by use of a variety of diffraction methods one can determine the Bauschinger effect associated with a given microstructure and this permits a kinematic hardening component of the total work hardening process to be identified This seminar will deal with the use of the measurements of the Bauschinger effect to determine the kinematic hardening and the application of these ideas to both the strengthening of a variety of materials and to trying to elucidate the relationship between plasticity and fracture.