Help with Shear Modulus Research

AI Thread Summary
The discussion centers on the search for historical context regarding the definition of shear modulus and its equations. The shear modulus, or modulus of rigidity, is defined as shear force divided by shear strain and is related to the modulus of elasticity through the equation G = E / 2(1 + ν), where ν is Poisson's ratio. The original inquiry seeks information about the individual or individuals who defined these concepts, as well as the reasons behind their definitions. Despite attempts to find this information through Google and Wikipedia, the user has not been successful. The thread concludes without providing specific historical references or sources.
RCulling
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I was wondering if anyone could please point me in the direction of some background info on who (and why) someone defined the equations definition of the shear modulus, I've searched in google and wiki and havnt found anything useful. Just a link or something would be great
 
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It is similarly defined as the modulus of elasticity

Modulus of Rigidity = Shear force/ Shear strain

It is also related to the modulus of elasticity E by

G=\frac{E}{2(1+\nu)} where v is the Poisson's ratio.
 
thanks :) but I was more wanting the person that defined it, I've to write a report on it, and need some background info... Which I can't seem to find
 
In that case, I do not know as well. Sorry.
 
All good :) thanks
 

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