Like the Mohr’s circle for stress, you can obtain θ_p, θ_s and also strains based on other θ (e.g. θ = 30^o) from the Mohr’s circle for strain.

And again, like the Mohr’s circle for stress, we have the 3D strain Mohr’s circle.

3D Mohr’s circle for strain

We won’t go through the explanation of the 3rd strain dimension as the same principal was already covered in Chapter 7.4.

The main point is that there is also a γ_abs-max. Here, we present the 3 possible configurations of the 3D Mohr’s circle for strain:

Let’s look at an example now.