So

we can install this

but if I run it now

then we see here we have a tension sensor.

tension tensor.

It has a corresponding Mohr's tension circle.

And we also have the tension cube

where the thrust and normal

tensions are recorded in different directions on the cube.

That means I can play around a bit and change my tension tensor a bit.

I can say for example that here we have 0

update and ok.

That's not so good.

Actually he should update it across.

Obviously he doesn't want to, but...

That should...

Demonstration...

And what we can do is we can rotate the cut directions.

And if we rotate the cut directions

then he updates the cut sizes accordingly.

And we can also say align with principal direction.

Then we are in the main tension direction.

So he shows us relative to the global coordinate system where we are in our main tension direction.

And then we see here current stress tensor 5, 1, minus 1.

So that would be our tension tensor in the main axis transformation.

We can now forget about the tractions and so on.

But basically it can show you how a tension tensor looks like

what happens when you start rotating the directions and so on.

I think the update will have something to do with the new Maddler version,

but at least it works pretty well in principle.

I can rotate the tension tensor, see what the cut sizes are,

and also see what it looks like in the Mohr's tension circle.

Or at what points of the Mohr's tension circle we are.

Numerical inaccuracies not even calculated.

I think that makes the whole thing a little more appealing

if you can play around a little bit and see what it looks like with the tension sensors.

So just download it.

Everyone should have a Maddler license from the university.

So you can just play around a little bit at home with it.

Otherwise

for today we will look at what elasticity we have.

We started a little bit with the general description last time.

We will continue with that.

And then at the end we will look at what happens at the end of elasticity.

How can we describe when plasticity begins?

Because I have already mentioned it a few times.

Typically in mechanical engineering or in many applications,

it is very important for us to know how far we have elastic deformation

and when plastic deformation starts.

Of course, this cannot be the only tool criterion.