Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 28)
28.
For a given material Young's modulus is 200 GN/m2 and modulus of rigidity is 80 GN/m2. The value of Poisson's ratio is
Discussion:
24 comments Page 3 of 3.
Abigail said:
9 years ago
I tried d formulae for the relationship between bulk modulus and modulus of rigidity but it's not giving me the right answer.
Can anyone help me?
Can anyone help me?
Ammulu said:
9 years ago
E = 2g(1 + u),
200 = 2 * 80(1 + u),
200 = 160 + 160u,
U = -40 ÷ 160,
U = 1 ÷ 4,
U = 0.25.
200 = 2 * 80(1 + u),
200 = 160 + 160u,
U = -40 ÷ 160,
U = 1 ÷ 4,
U = 0.25.
Mujru said:
9 years ago
The equation related to bulk modulus and modulus of rigidity is;
E = 2n(1+u).
E = bulk modulus,
n= modulus of rigidity,
u = possion raito.
So,
u = E/2n -1.
= 200/(80 * 2) - 1.
= 0.25.
E = 2n(1+u).
E = bulk modulus,
n= modulus of rigidity,
u = possion raito.
So,
u = E/2n -1.
= 200/(80 * 2) - 1.
= 0.25.
Krishna said:
9 years ago
You are correct @Rathi.
E = 2G(1+mu)
then u = 0.25.
E = 2G(1+mu)
then u = 0.25.
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