Strength Of Material: Nuclear Quiz 2

The buckling load P = P_cr, for the column AB in the figure, as K_T approaches infinity, become 'α' times

where α is equal to

In a closely coiled helical spring having 100 mm near diameter and made of 25 turns of 20 mm diameter steel wire. The spring carries an axial load of 200 N, modulus of rigidly 100 GPa. The shearing stress developed in the spring in MPa is ______

A steel bar 12 cm in diameter is completely encased in an aluminium tube of 18 cm outer diameter and 12 cm inner diameter so as to make a composite beam. The composite beam is subjected to a bending moment of 12 kNm, then the maximum stress (in N/mm²) developed due to bending in aluminium is
[Take E_steel = 3 E_aluminium]

As per the maximum principal stress theory, when a shaft is subjected to a bending moment of 2 kN-m and torque of 2 kN-m. If the allowable stress in axial tension is 220 kN/m², then the diameter of the shaft is given by

A load of magnitude 10 kN is applied on a rectangular footing as shown in figure. Calculate the stress generated at B due to the loading.

A composite beam cross section is made up of two rectangular strips. Each of (100×50) mm placed and jointed over each other as shown.

What is the axial stress σ_s in steel portion of beam if load of 15000 N is acting on the beam?

Given E_s = 2 × MPa, E_Br = 1 × MPa

A cantilever beam ABC is subjected to a moment of 500 Nm at the free end as shown in figure.
The ratio of deflection at point C to point B is ________.
[Take E = 2 x 10⁵ N/mm² and moment area method is preferable]