52 A rectangular block shown in Figure P52 is free o its u e

5.2 A rectangular block shown in Figure P5.2 is free o its u end and fixed at its base. The rectangular block is subjected per Fig to a concentric compressive force of 200 kN together with a Rec moment of 5.0 kN-m, as shown ing a. Identify the location of the most critical point on the rectangular block b. Determine the maximum stress at the critical point and rod determine if yielding take place. The material is AISI 15 1060 hot-rolled steel.

Solution

Ans for que a

We know that mximum stress occurs at fix end of the beam.

The slope and deflection for the beam will occur maximum at fixed end.

So we can conclude that the critical point of the beam is at the fixed end.

Ans of que b

Stress=force/

so

Stress=200000/1250

=160 N/mm^2