Considering only pure bending, determine the minimum section modulus for the component and loads shown. Assume ?? of 36,000 psi and a factor of safety of 1.67. (Hint: the part does not have to exceed the allowable stress) Do not forget to draw and calculate the diagram of shear force and bending moment The distances in the beam are in feet. The value of the load P1 and P4 is 2 kips. The value of the loads P2 and P3 is 6 kips

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Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.