What is the engineering stress ?
A metal rod is 4.4 mm in diameter and 135 mm long before being loaded in tension. When subjected to a force of 3.44 kN, it will undergo 3.90% strain.
What is the engineering stress (MPa) experienced by the metal rod?
- jacob sLv 72 months ago
Given: d = 4.4 mm, long =135mm
Force= 3440N , ε = 3.90 %
engineering stress (MPa)= Force Applied/initial Area
σ = ρ/Ai = ρ/(π/4 x d²)
σ = ρ/Ai = 3440/(π/4 x 10²)
σ = 33.35 MPa