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September 3, 2014

September 3, 2014

Posted by **pramod** on Tuesday, March 27, 2012 at 11:31am.

- physics -
**drwls**, Tuesday, March 27, 2012 at 1:09pmFor homogeneous isotropic materials, simple relations exist between elastic constants (Young's modulus E, shear modulus G, bulk modulus K, and Poisson's ratio í) that allow calculating them all as long as two of them are known:

See http://en.wikipedia.org/wiki/Young's_modulus for the formulas you need

- physics -
**DDD**, Sunday, November 17, 2013 at 2:07pmThe Young's modulus for a material is 11.0 x 1010 N/m2. The material is stretched to a strain of 3.0 x 10-3. How much elastic energy will be expended?

answer is 495000.0

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