A block with a weight W hangs from a pin at A. Support bars AB and AC are pinned to the support at B and C. Bar AB has a cross-sectional area of 750mm2 and 500mm2 for bar AC. Neglecting the weights of the bars, determine the maximum safe value of W if the stress in bar AB is limited to 100MPa and that in bar AC to 125MPa.

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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.