Calculating Shaft Diameter for Bending & Torsion Loads

[teng125]

what formula should i use to calculate the shaft diameter according to the load due to bending and torsion??

 

[Astronuc]

That depends on the applied contraints and geometrical considerations.

Consider the formula one uses to determine the bending or torsional stresses or deflections in which the cross-sectional area is a factor. If the constraint is yield stress or maximum deflection, then one can solve for a particular cross-sectional area (and from that, diameter) based on a maximum stress less than or equal to yield stress, or maximum deflection based upon some limit (which could be limited by yield stress or interaction with some other structure).

 

[piercas]

There are several formulas that can be used to calculate the shaft diameter for bending and torsion loads, depending on the specific circumstances and variables involved. Some commonly used formulas include the maximum shear stress theory, the maximum distortion energy theory, and the maximum shear strain energy theory. It is important to consider the type of material and its properties, as well as the applied loads and boundary conditions, in order to determine the most appropriate formula to use for accurate results. It is also recommended to consult with a mechanical engineer or refer to a comprehensive handbook or textbook for more specific guidance on calculating shaft diameter for bending and torsion loads.