Finding maximum shear stress in a 200mm² component under 40kN tensile force

[Malawaki]

Homework Statement

Hi i have the following question a component of 200mm2 cross sectional area is subject to a tensile force of 40kn Determine the tensile stress and the maximum shear stress that exist within the component ? I can work out the shear but how can i work out the maximum Shear ?

Homework Equations

stress = Force
area

The Attempt at a Solution

stress = 40,000
0.0002

= 200MN/m2

The problem i have is calculating the other stress any help would be gratefully appreciated

 

[ijustlost]

If there's only a tensile force acting, surely the shear stress is 0?

 

[Malawaki]

I don't know it may but i always thought shear stress was present in all compoenets and in fact in a tenisle stress test the test specimen did not actually fail in tensile stress but in shear stress. I may be looking to far into the question can the tensile stress i have calculated also be the maximum shear or not ?

Thanks in advance