- #1

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## Homework Statement

## Homework Equations

[itex]\sigma[/itex] = F/A

## The Attempt at a Solution

I understand that I should evaluate the different forms of stress to find different values of the ultimate load. I also understand that I should choose the smallest value among them since anything greater than the smallest value will cause failure.

I know how to calculate the normal stress in the block and the shear stress in the steel.

I don't understand where shear stress occurs in the block and thus how to calculate it.