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Energy return of elastomer

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Dan_C

Mechanical
Aug 5, 2020
2
Hello,

I'm developing a product which requires a shock absorbing elastomer to compress slightly during an impact, then rebound providing energy return, similar to running shoes.
I'm just trying to figure out, does the rebound/energy return occur when
A) the force causing the compression is removed, or
B) is it related to the natural frequency of the material. I.e. the energy return occurs after a period of time determined by the frequency of the material.

Thanks in advance,
Dan
 
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Both A and B are true. The model for viscoelastic material behavior is an ideal spring with dampers in series and parallel.
 
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