A straight length of steel, 2.5m long and 30mm diameter forms part of a structure in which it is firmly held at both ends, preventing any expansion or contraction. It supports a compressive load of 80kN during which time its temperature increases from 20C to 120C. Determine (a) The potential dimensional change due to the temperature rise. (b) The stress exerted due to the prevented expansion. (c) The stress exerted due to the compressive load. Coefficient of linear expansion for steel Modulus of elasticity for steel Ultimate compressive Strength for the steel = 12 x 10-5/C = 200 GN/m = 480 MN/m 030mm 2.5 80KN Compressive