# Homework Help: Planes stress in a truss

1. Dec 14, 2016

### fonseh

1. The problem statement, all variables and given/known data

For part b , i think one of the angle either $$\theta_s$$ or $$\theta_p$$ is wrong
For the second question , what is plane stress ?

2. Relevant equations

3. The attempt at a solution

1.) Because in mohr's circle, the maximum shear stress on the vertical axis , for the maximum normal stress , it's on the horizontal axis , right ?

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Last edited: Dec 14, 2016
2. Dec 14, 2016

### fonseh

I am sorry that the title of the topic is confusing . I think the part a is not related to part b

3. Dec 15, 2016

### fonseh

Bump

4. Dec 15, 2016

### fonseh

Or is my sketch of mohr's circle is wrong ?