# Homework Help: Stress components on cantilever beam loaded off symmetry

1. Dec 6, 2013

### habibi69

1. The problem statement, all variables and given/known data
An element is taken from the wall end of the cantilever beam that is loaded as per the diagram. What are the stress components of the element, taken at x=0, y=h/2, z=0

2. Relevant equations
σ=My/I

3. The attempt at a solution
So from the shear moment diagram, the moment and shear at the wall end are found but then I'm not too sure what to do about the transverse load at an angle. I broke the load down into it's components but I'm not sure what to do about it.

2. Dec 6, 2013

### rock.freak667

You will just need to find the bending stress using each of the components of P. So you will need to get Ixx and Iyy for the beam and find Mxx and Myy for each of the components of P.

So

σx= (Mxxy)/Ixx

3. Dec 6, 2013

### habibi69

So is there no stress on the z face, $σ_{z}$ ?

4. Dec 6, 2013

### SteamKing

Staff Emeritus
Think about what happens when you resolve P into its components.

5. Dec 8, 2013

### habibi69

So then there would also be a shear stress caused by the load right? I'm getting confused now

Unless we assume that the beam is under pure bending, then there would be no shear

Last edited: Dec 8, 2013
6. Dec 8, 2013

### SteamKing

Staff Emeritus
It might be better if you look at the beam loaded by each of the components of P individually. Draw the shear and bending moment diagrams without worrying too much about how everything acts simultaneously.