How does a Point Force Affect a Piezoelectric?

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Discussion Overview

The discussion revolves around the effects of a point force applied to a sphere covered with a piezoelectric film. Participants explore how the piezoelectric material would respond to the force, including potential compression and expansion, and inquire about methods for measuring the force based on the material's response.

Discussion Character

  • Exploratory
  • Conceptual clarification

Main Points Raised

  • One participant proposes that applying a point force would cause compression at the point of application and expansion elsewhere, particularly on the opposite side of the sphere.
  • Another participant questions the specifics of the setup, asking about the support of the sphere, its size, and the material composition of the sphere.
  • A request for a sketch of the arrangement is made to clarify the discussion further.

Areas of Agreement / Disagreement

Participants have not reached a consensus, as there are differing views on the expected response of the piezoelectric material and additional questions regarding the setup.

Contextual Notes

The discussion lacks specific details about the assumptions regarding the force application, the properties of the piezoelectric material, and the configuration of the sphere.

nst.john
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So, let's imagine we have a sphere of metal with a piezoelectric film all around the outside of it. If we applied a point force to one area of the sphere, how would the piezoelectric material react? Would it compress or expand at that point, and how can we measure the force based on the response given? If anyone can lead me to an answer or some good resources that would be fantastic. Thanks guys!
 
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nst.john said:
a sphere of metal with a piezoelectric film all around the outside of it. If we applied a point force to one area of the sphere, how would the piezoelectric material react? Would it compress or expand at that point,

What do you think would happen ?
 
I assume it would cause a compression where the force is applied and an expansion just about everywhere else, most significantly at the opposite side of the force
 
How is the sphere supported ? How big is it ?

What metal is the sphere made from ?

Please post a sketch of the whole arrangement that you have in mind .
 

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