Strength of Material Booster Quiz-8

The shear force diagram for the beam is

An element which is subjected to pure shear τ , find the volumetric strain?

Number of independent elastic constant for an isotropic material is

If principal stresses at a point in a stressed body are 150kN/m² (tensile) and 50kN/m² (tensile). Consider a plane 45 degree with major principal plane. If this plane has normal stress σ_X’ = 100 kN/m2 then normal stress σ_y’ will be ?

In a Mohr circle the shear stress τ₁ on the plane of maximum obliquity is-

Along the neutral axis of a simply supported beam in pure bending

If Temperature changes from t_o to t in a simple bar with both end constrained and having modulus of elasticity E and thermal coefficient α, thermal stress due to temperature rise is

The Poisson’s ratio for cast lron varies from

The force in BF of the truss shown in figure below, Force 5t acts downward at E, member AC,CB,BF,FE,ED,DA is of same length.