3582447272

Figurę 2 Composite Assembly of Round Rods

4) The assembly shown in Figurę 2 consists of 2 round rods, one of aluminum and one of Steel. The aluminum is fixed at the top end. They have the diameters shown in Figurę 2. A 150 kN load is applied downward to the Steel as shown. There are also two forces, of magnitude F, applied upward on the Aluminum as shown. The Aluminum has a yield strength of a_yieia = 300 MPa. The Steel has a yield strength of o_yieU = 550 MPa. For the assembly shown in Figurę 2 fmd:

a)    The Factor of Safety agamst yield for the Steel

b)    The rangę of the magnitude of force F such that the Factor of Safety agamst yield in the Aluminum is greater than or equal to 3.

Hints for all problems:

1)    Keep trackof units.

2)    Assume that materiał propcrties are the same in tension and compression.

3)    Do not consider stress concentrations.

4)    1 Pa =