In contrast, ideal fluids can only be subjected to normal, compressive stress which is called pressure.

Then, of course, there are the normal, daily stresses of just being.

Let be the normal stress in the liquid that points radially outward from the center of the bubble.

The normal stresses, on the other hand, are shared by the fluid and the particles.

In which is the shear stress and the normal stress.

The average normal stress can be read directly from a plot of the Mohr's circle.

These forces increase the normal stress and therefore resistance to friction along the creeping surface.

This part is given by normal stresses that turn up in almost all situations, dynamic or not.

There's the normal stress of the move and then, based on need, it just piles up.

The same result can be obtained by finding the angle which makes the normal stress a maximum, i.e.