Q3. A cantilever WF cast iron beam of ultimate tensile strength Su and ultimate compression strength Suc is subjected to a concentrated load at its free end. What is the factor of safety n? Given: Su = 280 MPa, Suc = 620 MPa. Assumption: Failure occurs in accordance with the following theories: a. Maximum principal stress b. Coulomb-Mohr
60 kN
0.4 m
10.3 mm
102 mm
80 mm
6.6 mm
80 mm