A load P is supported by a structure consisting of rigid bar ABC, two identical solid aluminum alloy [E =73 GPa) rods (1), and a solid bronze [E= 105 GPa)] rod (2). The aluminum rods (1) each have a diameter of 17 mm and a length of L₁ = 2.9 m. They are symmetrically positioned relative to middle rod (2) and the applied load P. Bronze rod (2) has a diameter of 19 mm and a length of L₂ - 1.7 m. If all bars are unstressed before the load P is applied, determine the normal stresses in the aluminum and bronze rods after a load of P = 72 kN is applied to the rigid bar. L₁ Answer: 01 = i 0₂= i L2 (2) (1) MPa MPa

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Mechanics of Solids

It is the study of the behavior of solid materials, their characteristics under various circumstances such as variation in external forces, temperature, and other internal factors. It is one of most important study in the field of engineering science, especially chemistry and mechanical engineering. In rigid body, the idealization of the solid body in which deformation is neglected. Deformation is known as the force acting on the solid state system which exerts change in its shape of the body but it continues to be at rest or in a uniform motion but it cannot accelerate. But those solid systems do have elasticity, compressibility and can be bent. This field is very vast since there are wide range of materials around us.