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Lecture No.129

Title: Constitutive Modelling of Secondary Twinning in Mg alloy AZ31 under Strain Path Changes
 
Speaker: Peidong Wu, Professor          

 Department of Mechanical Engineering, McMaster University

          Hamilton, Ontario L8S 4L7, Canada
 
Date/Time: 2014-01-06,10:00
 
Venue: Room.313, Material Building A
 
Inviter: Prof Yao ShENG
 
Abstract:
    The recently developed Twinning and De-Twinning (TDT) model for polycrystalline materials with the Hexagonal Close Packed (HCP) crystallographic structure is modified to include effects of secondary twinning. This improved TDT model is then applied to magnesium alloy Mg-3 Al-1 Zn (AZ31B) sheet under strain path changes. It is demonstrated that the new model is able to capture key features associated with the secondary twinning observed experimentally.

Time:2014-01-06,10:00
Location:Room.313 Material Building A