Question

According to maximum shear stress failure criterion yielding in material occurs when

• A. $maximumshearstress=\frac{1}{2}yieldstress$
• B. maximum shear stress $=\sqrt{2}$ yield stress
• C. maximum shear stress $=\sqrt{3}\times$ yield stress
• D. maximum shear stress = 2 × yield stress

Answer 1

The correct option is A $maximumshearstress=\frac{1}{2}yieldstress$

The Maximum Shear Stress theory states that failure occurs when the maximum shear stress from a combination of principal stresses equals or exceeds the value obtained for the shear stress at yielding in the uniaxial tensile test.
For yielding in material,
Maximum shear stress = yield stress/ 2