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## Homework Statement

Hi,

I am doing some things with Mohr's circle. I am trying to find the direction of max strain but I am a bit confused. How can I do this?

## Homework Equations

## The Attempt at a Solution

I always assumed that the max strain occurs at 90

^{O}from the normal axis or 45

^{O}in real life. But I used a online calculator and got an angle of about 40

^{O}so that means that it isn't always at 45 like I thought.

Can anyone lend a hand?

Thanks!