Usman Ali

Research interests

• Crystal plasticity large strain modelling
• Crashworthiness applications
• Texture stability
• Static recrystallization

Summary of work

Automotive companies use forming operations like stamping and extrusion for various car body and structural parts. Crystal plasticity simulations of these processes enables designers to study the effect of texture and stress-strain data on the final part. Some of these processes are carried out at higher temperatures and therefore the final texture and material properties are affected by other phenomenon.

These phenomenon such as recrystallization need to be considered to accurately predict the final texture. My work involves simulating large strain problems such as rolling at different temperatures and strain-rates while accounting for the texture and flow behavior. This involves using a crystal plasticity framework along with an in-house recrystallization code.