# Stress in a beam

by thephysicsman
Tags: beam, stress
 P: 89 1. The problem statement, all variables and given/known data a) This steel beam has a quadratic cross-section (A=100mm2). The force F is 10 kN. Calculate the stress in the rod and show that this stress does not exceed the yield strength of the steel. 2. The attempt at a solution a) $$\sigma = \frac{10000N}{0.0001m^2}=100 MPa$$ I guess this is right? I'm not sure what the yield strength is. Can I calculate it from the given formulas?