What is 'alternating stress' 🧑‍🔧

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And the quick answer is…

A stress produced in a material by forces which are such that each force alternately acts in opposite directions.

Alternating stress is defined as the stress on a material created by forces that are changing their direction or magnitude with respect to time.

This type of stress is associated with cyclic loading of a material which is a common phenomenon in machines undergoing rotational motion.

The cyclic stresses can be either axial, torsional or bending in nature.

Let’s start by reviewing a few questions people ask:

Alternating stress

What is the difference between simple simple stress and alternating stress...

simple stress is constant stress. Both alternating and cyclic are fluctuating in a regular fashion…..alternating is for reversing stresses, cyclic stresses follow a pattern of stresses over time that repeats after each time cycle. Fluctuating stresses can vary over time in any random fashion as well

What is engineering stress in physics...

He has a master's degree in Physics and is pursuing his doctorate study. Engineering stress involves internal particle reactions causing force and failure. Explore the definition, equation, and causes of stress and discover the types of stress including compression, tension, shear, bending, torsion, and fatigue.

Can alternating stress be negative...

If the mean stress is high enough, then the projection would yield a negative alternating stress as shown in Figure 12. Figure 12: When projecting from a compressive cycle with a high mean stress, the alternating stress amplitude is negative, which is not possible.

What is alternating stress in Mechanical Engineering...

October 28, 2016. What is Alternating Stress? Alternating stress is defined as the stress on a material created by forces that are changing their direction or magnitude with respect to time. This type of stress is associated with cyclic loading of a material which is a common phenomenon in machines undergoing rotational motion.

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