Mecanica de Materiales

1. Problem 1:
Knowing that for the casting shown the allowable stress is 5 ksi in tension and 18 ksi in compression, determine
the largest couple M that can be applied.
Problem 2:
Knowing that the bending moment in the reinforced concrete beam is 100 kip*ft and that the modulus of
elasticity is 3.625E6 psi for the concrete and 29E6 psi for the steel, determine (a) the stress in the steel, (b) the
maximum stress in the concrete.
Problem 3:
Knowing that the allowable stress for the beam shown is 90 MPa, determine the allowable bending moment M
when the radius r of the fillets is (a) 8 mm

2. Problem 4:
Knowing that the clamp shown has been tightened until P = 400 N, determine (a) the stress at point A, (b) the
stress at point B, (c) the location of the neutral axis of section a-a.