The bronze bar 3 m long with a cross-sectional area of 350 mm^2 is placed between two rigid walls. At a temperature of –25C, there is a gap  = 2.5 mm, as shown in the figure. Find the temperature at which the compressive stress in the bar will be 30 MPa. Use α = 18.0 x 10–6 /C and E = 80 GPa.

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Dependence on mechanical properties

The mechanical properties of materials are those structures that include the reaction to the load used. Metal switching features determine the scope of the usefulness of the content and establish the expected service life. Machine structures are also used to help distinguish and identify material objects. The most common mechanical properties considered are strength, ductility, stiffness, impact resistance, and resilience to fractures.