Some Videos of Dislocations

A Non-computational Model of Dislocations

The theory of dislocations continued to develop after it was first introduced in 1934, but direct experimental confirmation of the theory didn't arrive until over two decades later. Video 12.5.1, from 1952 (!), shows a model that scientists made of dislocations out of bubbles! This is a very cool demonstration that models don't have to be computational or mathematical. They can be physical too. The video covers most of the key ideas of dislocations and is worth watching in full if you have the time.

Simulation of dislocations in aluminium

The video below is a simulation of dislocations forming and then moving in a block of aluminum as it is sheared back and forth. This is just to give you a sense of how many dislocations there can be in a solid and how complex their movements and interactions can be.