Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: Shear Modulus

[Subject Prev][Subject Next][Thread Prev][Thread Next]

Thanks guys, I was just looking for values for Poisson’s ratio.  Your values are close to what I came up with.



-----Original Message-----
From: Daryl Richardson [mailto:h.d.richardson(--nospam--at)]
Sent: Wednesday, August 31, 2005 3:06 PM
Subject: Re: Shear Modulus




        There is always the old stand by equation


        E = 2G(1+u)


        E = Young's Modulus.

        G = shear modulus, and

        u = Poisson's ratio.


        Really good quality (high strength,low w/c ratio) concrete may have u = 0.2, otherwise values of 0.25 or 0.3 may apply.


        I understand the above equation to be correct but the values I have suggested may be suspect.  I expect that Gail Kelly may be a good source of this data.


        Hope this isn't too misleading for your purposes.




H. Daryl Richardson

----- Original Message -----

Sent: Wednesday, August 31, 2005 2:08 PM

Subject: Shear Modulus


Does anyone know where I can find an equation for the Shear Modulus, G, of concrete.  I have looked in ACI 318 and some text book but could not locate an answer.  I know masonry estimates this value to be about 0.4*E, could this value be used for concrete also?