Engineering Calculating Poisson's Ratio: Young, Bulk, & Relation

[joemte]

Homework Statement

Given that the sample of PVC has a Young's modulus of 3.3GPa and a Bulk modulus of 4.6GPa Calculate Poisson's ratio

Relevant Equations

None

I've never really heard of Young, Bulk, or Poisson's ratio before. I have done some research but I can't seem to find the relationship between the three in order to calculate Poisson's ratio. Could someone please point me in the right direction?

Thanks

 

[mjc123]

See the table of conversion formulae in https://en.wikipedia.org/wiki/Poisson's_ratio. Of course, if you've never heard of any of them, it won't be very meaningful to you.

 

[joemte]

Hi,

Yes I have individually researched Bulk, Young, and Poisson's ratio, but from what I've researched I am not sure how to apply it all to calculate Poisson's ratio with the information I have been given in the question.

 

[mjc123]

Well, there is a formula in that reference that will enable you to calculate PR given Young's and Bulk moduli. As to "understanding how to apply it all", I couldn't tell you off the top of my head how that formula is derived, but there it is and you can use it.

 

[Chestermiller]

See the table of conversion formulas in https://en.wikipedia.org/wiki/Bulk_modulus

 

[joemte]

Hi Chester,

Thank you I didn't see this table, the following formula provided me with the correct answer:

(3*K-E) / 6K