Introduction of dislocation 上清充通大学 SHEAMGHAI DUD TONO UHTVEREETTY Understanding of dislocation motion Pull an entire carpet,the effort is large. (a) Make a 'bump',move this bump,then the carpet moves forward by a small distance. The force required to move the bump will be small. Creating and moving a series of bumps successively,the carpet can be moved forward 'bit by bit'. Dislocation movement is similar to the way a caterpillar moves. Institute of Forming Technology Equipment 7Introduction of dislocation Institute of Forming Technology & Equipment 7 Understanding of dislocation motion • Pull an entire carpet, the effort is large. • Make a ‘bump’ , move this bump, then the carpet moves forward by a small distance. • The force required to move the bump will be small. • Creating and moving a series of bumps successively, the carpet can be moved forward ‘bit by bit’.  Dislocation movement is similar to the way a caterpillar moves