Strength of Materials I · Practical exam · Problem 1
Average normal stress
Problem statement
Two solid cylindrical rods AB (diameter d₁) and BC (diameter d₂) are welded together at B and loaded as shown in the figure. Knowing that d₁ = 40 mm and d₂ = 50 mm, find the average normal stress at the midsection of a) rod AB, b) rod BC.
Figure data: 80 kN force to the left at A and two 150 kN forces to the right at B; AB = 1.0 m and BC = 1.7 m, with end C fixed.
Concepts: welded cylindrical rods, axial load, normal stress, diameter, midsection
