Problem 1. A W section is used as a beam without lateral support. A36 steel is used with Fy=248 MPa. Compute the allowable bending stress(MPa) if it has a simple span of 9 m. Properties of W Section A=24709.6 mm2 d 840.74 mm b= 292.35 mm ty 21.72 mm tw 14.73 mm 1=2792.9 x 106 mm I, = 90.74 x 106 mm Sx = 6653.15 x 103 mm %3D %3D %3D Sy 621.07 x 103 mm ry 335.28 mm = 60.45 mm A. De %3D %3D Fla Ty Fla

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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.