A rod of a variable cross-section shown in the following figure is subjected to two axial forces. The rod has a circular cross section. Find the maximum normal stress. 4 cm 70 kN 40 kN 2 cm

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Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.