What Does Potential Energy of Loading Mean in the Context of Spring Energy?

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The discussion centers on the equation for potential energy in elastic bodies, specifically springs, which states that the potential energy is the difference between strain energy and potential energy of loading. Strain energy is defined as 0.5*k*x^2, where x is the displacement and k is the spring constant. The term "potential energy of loading" raises questions about its meaning, particularly in relation to energy storage in mass and elastic bodies. Some participants suggest that loading may involve non-conservative forces, such as plastic deformation or friction. The conversation seeks further examples and references to clarify the concept.
chandran
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The following equation i came across when i was studying the minimum potential energy principle

QUOTE:
POTENTIAL ENERGY OF AN ELASTIC BODY(example spring)=STRAIN ENERGY-POTENTIAL ENERGY OF LOADING

We all know that the strain energy of a spring is equal to 0.5*k*x*x were x is the displacement in the spring and k is the spring constant. This is called STRAIN ENERGY.

What is the second term "POTENTIAL ENERGY OF LOADING" mean.

Only mass and elastic bodies can store energy. Why LOADING has POTENTIAL ENERGY?



Any examples/webs?
 
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Do you have a reference for this?
 

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