Question 4.6: At a point in a loaded structure, a pure shear stress state ...

Fundamentals of Strength of Materials

At a point in a loaded structure, a pure shear stress state of τ = ± 400 MPa prevails on two given planes at right angles.
(a) What would be the state of stress across the planes of an element taken at ± 45° to the given planes?
(b) What are the magnitudes of these stresses?

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