The bronze bar 3.42 m long with a cross-sectional area of 627 mm2 is placed between two rigid walls. At a temperature of -14 °C, there is a gap Δ = 2.36 mm, as shown in the figure. Find the temperature at which the compressive stress in the bar will be 34.22 MPa. Use α = 18 × 10-6 /°C and E = 80.32 GPa. Round off your answer to two decimal places.

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Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.