Please consider attending the following: MATERIALS ENGINEERING SEMINAR "Review of Junctions in FCC Metals" By Vignesh Vivekanandan Purdue MSE Ph.D. Preliminary Exam Advisor: Professor Anter El-Azab ABSTRACT Plastic deformation of metals occurs by dislocation motion. The density of dislocations increase during plastic deformation giving rise to hardening. This process is controlled by dislocation-dislocation interaction, especially the so-called forest cutting and junction formation. In this review, the different types of junctions and their contribution to hardening in FCC metals are discussed. First, the junction formation process is explained based on linear elastic models of dislocations. Then the shortcomings of such models are discussed and the need for dislocation dynamics simulations is emphasized. Following that, different algorithms used to model and characterize junctions in dislocation dynamics are summarized. Based on this characterization, a methodology to incorporate the information in continuum models is explored. Date: Monday, November 26, 2018 Time: 10:30 A.M. Place: ARMS 1109