Peridynamics is a way to study and understand how things like solid materials (like rocks) move and behave when they are pushed or pulled. Imagine you have a toy car and you push it across the table. That toy car is like a solid material, and peridynamics is the way we study how it moves when you push it.
Peridynamics works by looking at things called "particles" that make up the solid material. These particles are like the little pieces that go together to make the toy car. When you push on the car, you're actually pushing on all the little particles that make it up.
Peridynamics uses a bunch of mathematical equations to figure out how these particles move and react to each other when they're being pushed or pulled. These equations are like a rulebook that tells us what will happen to the particles when we apply a certain amount of pressure or force.
One thing that's different about peridynamics is that it doesn't just look at the particles that are right next to each other, like in some other methods for studying solid materials. It looks at particles that are farther apart too, so we can see how the material behaves as a whole.
So, peridynamics is like having a really good rulebook to understand how solid materials like rocks move and behave when something happens to them, and it looks at the whole material’s behaviour, not just the little pieces close together.