[ATM] Re: Second Thoughts on Mirror Support

[jonah at eecs.berkeley.edu (Jeff Anderson-Lee)]

Michael Lindner wrote:

>>>Does anyone know how compute how much compression a 25mm round by 3mm
>>>thick RTV pad would experience under a 0.306kg load?
>>>      
>>>
>
>>From http://www.matweb.com/SpecificMaterial.asp?bassnum=O5200
>Compressive Yield Strength of silicone is 4 MPa or 580 psi.
>
>Using english units (sorry, rest of the world), a 1"x1/8" cylinder holding a 
>2/3 pound mass would be compressed about 0.007". Empirical confirmation of 
>this analysis is left as an exercise to the reader. ;-)
>  
>
Out of curiosity, what's the formula used to derive 0.007" from the 
dimensions and the Compressive Yield Strength?

Jeff Anderson-Lee