- #1
ABoul
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Homework Statement
derive the equation for the bulk modulus, K = E/3(1 - 2v), where v is poisson's ratio.
Homework Equations
E = stress/e, where e is strain
The Attempt at a Solution
e_v = e_x + e_y + e_z
e_y = e_z = -v*e_x
e_v = (1 - 2v)*e_x
K = stress/e_v
therefore K = stress/[(1 - 2v)*e_x]
i am out by a factor of 1/3. where have i gone wrong?